HP 640 Redundant/External Power Supply Shelf

Transcription

1 HP 640 Redundant/External Power Supply Shelf Installation and Power Setup Guide Power over Ethernet

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3 HP 640 RPS/EPS Shelf Installation and Power Setup Guide

4 Copyright 2013, Hewlett-Packard Development Company, L.P. Publication Number September 2013 Applicable Products HP 640 RPS/EPS Shelf HP X W PSU HP X W PSU HP X W PSU HP 1-Meter EPS/RPS Cable HP G Switch HP G-PoE+ Switch HP G Switch HP G-PoE+ Switch HP G-PoE+ 740W Switch HP X410 1U Universal Rack Mounting Kit (J9805A) (J9739A) (J9738A) (J9737A) (J9806A) (J9726A) (J9727A) (J9728A) (J9729A) (J9836A) (J9583A) Disclaimer HEWLETT-PACKARD COMPANY MAKES NO WARRANTY OF ANY KIND WITH REGARD TO THIS MATERIAL, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. Hewlett-Packard shall not be liable for errors contained herein or for incidental or consequential damages in connection with the furnishing, performance, or use of this material. The information contained herein is subject to change without notice. The only warranties for HP products and services are set forth in the express warranty statements accompanying such products and services. Nothing herein should be construed as constituting an additional warranty. HP shall not be liable for technical or editorial errors or omissions contained herein. Hewlett-Packard assumes no responsibility for the use or reliability of its software on equipment that is not furnished by Hewlett-Packard. Warranty See the Customer Support/Warranty booklet included with the product. A copy of the specific warranty terms applicable to your Hewlett-Packard products and replacement parts can be obtained from your HP Sales and Service Office or authorized dealer. Safety Before installing and operating these products, please read the Installation Precautions in chapter 2, Installing and Connecting the 640 RPS/EPS, and the safety statements in appendix B, Safety and Regulatory Statements. Hewlett-Packard Company 8000 Foothills Boulevard, m/s 5552 Roseville, California

5 Contents 1 Introducing the HP 640 RPS/EPS Shelf Terminology Front of the Unit LEDs Back of the Unit Power Supply Bays RPS/EPS Ports AC Power Connector Supported HP 2920 Switches Meter EPS/RPS Cable Default Configuration and Operation Installing and Connecting the 640 RPS/EPS Included Parts Installation Procedures Summary Installation Precautions: Warnings Cautions Prepare the Installation Site Install the Power Supplies Mount the 640 RPS/EPS Rack or Cabinet Mounting Horizontal Surface Mounting Connect AC Power Verify Correct Operation Connect the 640 RPS/EPS to the Switches Using the 640 RPS/EPS with the HP 2920 Switches Redundant (RPS) Operation

6 Extra Power (EPS) Operation General Operation Initial Power Up of 640 RPS/EPS with 2920 Switches Adding a 2920 Switch to an Existing 640 RPS/EPS 2920 System 3-8 EPS Rules and Supported Configurations Providing More PoE Using 640 EPS Operation Operating Rules Supported EPS Configurations EPS Configuration Examples Examples Using Single 640 RPS/EPS Zones Examples Using Multiple 640 RPS/EPS Zones Unsupported EPS Configuration Recovery Operations If there is an incorrect 640 RPS/EPS 2920 System topology or component failure If a PSU fails in a non-poe system If a PSU fails in a PoE system If AC line voltage fails If an EPS/RPS cable is moved to an unsupported location Troubleshooting the 640 RPS/EPS Basic Troubleshooting Tips Diagnosing with the LEDs Diagnostic Tests Testing the Unit by Resetting It Checking the Unit s LEDs Testing Cabling HP Customer Support Services A Product Specifications Physical A-1 Electrical A-1 Environmental A-2 Acoustic A-2 Cable Length A-2 Safety A-2 EMC Compliance (Class A) A-3 Immunity A-3 2

7 B Safety and Regulatory Statements Safety Information B-1 Informations concernant la sécurité B-2 Hinweise zur Sicherheit B-3 Considerazioni sulla sicurezza B-4 Consideraciones sobre seguridad B-5 Safety Information (Japan) B-6 Safety Information (China) B-7 EMC Regulatory Statements B-8 U.S.A B-8 Canada B-8 Australia/New Zealand B-8 Japan B-8 Korea B-9 Taiwan B-9 C Recycle Statements Waste Electrical and Electronic Equipment (WEEE) Statements C-1 Index Index-1 3

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9 1 Introducing the HP 640 RPS/EPS Shelf The HP 640 Redundant/External Power Supply Shelf (J9805A) is a unit that can house up to three HP X331 or X332 modular power supplies (PSUs). The PSUs can supply redundant power to connected HP 2920 PoE and non-poe Switches in the event of an HP 2920 Switch internal power supply failure, and supply additional PoE power to the HP 2920 PoE Switches. Introducing the HP 640 RPS/ EPS Shelf Throughout this manual, this unit will be abbreviated as the 640 RPS/EPS. There are specific conditions that must be followed when connecting the HP 2920 Switches to the 640 RPS/EPS. These conditions are described and example setups are provided in Chapter 3, "Using the 640 RPS/EPS with the HP 2920 Switches". Figure 1-1. Front and Back of the 640 RPS/EPS showing one PSU installed. The 640 RPS/EPS has three power supply bays for installing the same modular power supplies that can be installed in the HP 2920 switches. Supported Power Supplies: HP X W PSU (J9739A) 12V non-poe (identified as the 165W PSU) HP X W PSU (J9738A) 54V PoE (identified as the 575W PSU) HP X W PSU (J9737A) 54V PoE (identified as the 1050W PSU) Figure 1-1 shows a PSU installed in the first bay. The 640 RPS/EPS comes without any PSUs installed. The PSUs are purchased separately. This chapter describes the 640 RPS/EPS including: front of the unit (page 2-2) back of the unit (page 2-5) supported switches (page 2-6) 1-1

10 Introducing the HP 640 RPS/EPS Shelf Front of the Unit Introducing the HP 640 RPS/ EPS Shelf Terminology Internal PoE power The PoE power provided by the internal power supply (IPS) of a connected 2920 Switch. External PoE power The PoE power provided by a connected PSU in one of the bays in a 640 RPS/EPS. The amount of PoE power available depends on the types of PSUs that are installed in the 640 RPS/EPS as well as how the usage has been configured among the switches. See Distribution Map below. Total PoE power The amount of PoE power that the switch can provide to PoE devices. It equals the sum of internal and external power. Zone A zone consists of one PSU installed in a bay, and the 2920 switches that are connected via EPS/RPS cables. The 640 RPS/EPS has three zones, one with four EPS/RPS cable connectors (ports), and two with two ports each. Each 640 RPS/EPS zone is powered by one of the supported PSUs installed in the bay. 640 RPS/EPS 2920 System a set of 2920 switches that are connected to a single 640 RPS/EPS zone. The operational status of each 2920 in the system, including redundancy operation and the amount of PoE that the 2920 can provide to its connected PoE Powered Devices (PDs), is potentially affected by other PSUs in the system; both the PSU in the 640 RPS/EPS zone and the PSUs in the other 2920s connected to that zone. Distribution Map The PoE power allocation between switches connected to an RPS/EPS zone. For example, if all power in zone 1 is allocated to port 1A, by switch configuration, then only ports on the switch that is connected to port 1A will receive any external PoE power. Front of the Unit ➊ ➋ Figure 1-2. Front of the 640 RPS/EPS ➊ ➋ ➌ Power and Fault LEDs Power bay status and Device Connected status LEDs Grounding lug attachment point ➌ 1-2

11 Introducing the HP 640 RPS/EPS Shelf Front of the Unit LEDs ➊ ➌ ➍ Introducing the HP 640 RPS/ EPS Shelf ➋ ➎ Table RPS/EPS LEDs LED State Meaning 640 RPS/EPS Shelf LEDs ➊ Power (green) ➋ Fault (orange) On Off Off Flashing orange 1, 2 On The 640 RPS/EPS is powered on at least one PSU is installed in a PSU bay and connected to active AC power. The 640 RPS/EPS is NOT powered on. The normal state; indicates there are no fault conditions on the 640 RPS/EPS. A fault has occurred on the unit, one of the power supplies, or one of the ports. The Status LED for the component with the fault will flash simultaneously. On briefly after the unit is powered on or reset. If this LED is on for a prolonged time, the unit has encountered a fatal hardware failure. See Chapter 2, "Installing and Connecting the 640 RPS/EPS" for more information. PSU Bay Status LEDs ➌ PS1, PS2, or PS3 (green and orange) On green Off On orange Flashing orange 1, 2 A PSU is installed, connected to AC, and functioning. No PSU is present, or a single PSU is installed in the 640 RPS/EPS and it is not connected to an active AC power source. A PSU is present, but the connected AC may be invalid, or the power supply has failed. The 640 RPS/EPS has experienced one of these conditions: The PSU associated with the LED has a fault or has been unplugged. The connected switch has a PSU that is not compatible with the PSU in the 640 RPS/EPS zone. An over-current condition has occurred in a connected switch. The switch is connected to a 640 RPS/EPS zone with another switch that has encountered an IPS failure. 1-3

12 Introducing the HP 640 RPS/EPS Shelf Front of the Unit Introducing the HP 640 RPS/ EPS Shelf LED State Meaning ➍ TMP (one per power supply bay green and orange) On green Flashing orange 1, 2 Port Status (Device Connected) LEDs ➎ 1A, 1B, 1C, On green 1D, 2A, 2B, 3A, 3B (green and Off orange Table RPS/EPS LEDs (Continued) Flashing orange 1, 2 The temperature in the PSU in the bay is within acceptable limits. The intake air temperature is above the product specification limit (55 o C). There is a valid connection to a 2920 Switch via the 640 RPS/EPS port corresponding to the LED. There is no valid switch connected to the port. When the LED is flashing simultaneously with the Fault LED, there is a fault condition on the port. The most likely causes are: The connected switch has a PSU that is not compatible with the PSU in the RPS/ EPS zone. The connected switch has auto recovery disabled. The switch that is connected to the port is operating correctly but is no longer receiving service from the 640 RPS/EPS because another switch that is connected to the same zone has experienced an internal PSU failure. The other switch is now receiving all the power from this 640 RPS/EPS zone. An over-current condition has occurred in a switch or EPS/RPS cable connected to the port. 1 The flashing behavior is an on/off cycle once every 1.6 seconds, approximately. 2 The Fault LED will be flashing simultaneously. The specific fault conditions can be viewed by checking the log files of the connected switch. Also see Chapter 4, "Troubleshooting the 640 RPS/EPS". 1-4

13 Introducing the HP 640 RPS/EPS Shelf Back of the Unit Back of the Unit ➊ ➋ ➌ ➍ Figure 1-3. Back of 640 RPS/EPS (shows PSU installed in bay 1) Introducing the HP 640 RPS/ EPS Shelf ➊ ➋ ➌ ➍ HP X331 or X332 PSU. One is shown. The 640 RPS/EPS is shipped with no PSUs installed. The PSUs are purchased separately. AC connector on PSU. PSU bays. Bays 2 and 3 are shown with covers in place. RPS/EPS ports four are available for zone 1; two each for zones 2 and 3. The1-meter EPS/RPS cables are connected here and to the 2920 Switches. The EPS/RPS cables are purchased separately. Power Supply Bays The 640 RPS/EPS has three power supply bays into which you can install any of the supported power supplies (PSUs). The 640 RPS/EPS is shipped without any PSUs installed. The PSUs are purchased separately. For the list of supported PSUs, see Supported Power Supplies: on page 1-1. RPS/EPS Ports The 640 RPS/EPS has eight RPS/EPS ports: four for zone 1; two each for zones 2 and 3. You can connect an HP 2920 Switch to each of these 640 RPS/EPS ports via a 1-Meter EPS/RPS Cable (J9806A). The 1-Meter EPS/RPS cables are purchased separately. Each port can provide: RPS (backup) power, which is used to keep a connected 2920 switch operating if it has an internal PSU failure. EPS (external PoE power) to the connected 2920 Switches. The amount of EPS power provided depends on the type of PSU that is installed in the bay and on the PoE configuration of the connected 2920 Switches. 1-5

14 Introducing the HP 640 RPS/EPS Shelf Supported HP 2920 Switches Introducing the HP 640 RPS/ EPS Shelf AC Power Connector The 640 RPS/EPS does not have a power switch; it is powered on when at least one supported PSU is installed in any one of the PSU bays, and the PSU is connected to an active AC power source. Supported HP 2920 Switches Any of the HP 2920 switches can be connected to any of the HP 640 RPS/EPS zones, but you must make sure that PoE switches are connected to zones that have PoE power supplies installed in them, and non-poe switches are connected to zones with non-poe power supplies. Switch HP G Switch HP G-PoE+ Switch HP G Switch HP G-PoE+ Switch HP G-PoE+ 740W Switch Product Number J9726A J9727A J9728A J9729A J9836A 1-Meter EPS/RPS Cable The 1-Meter EPS/RPS cable (J9806A) is the only cable that can be used to connect a 640 RPS/EPS to the 2920 Switches. This cable can be used to connect the 640 RPS/EPS to either PoE or Non-PoE 2920 Switches. The 1-Meter EPS/RPS cable is not supplied with the 640 RPS/EPS and must be ordered separately. Note The 1-meter EPS/RPS cable has no keying that prevents a 2920-PoE Switch from being connected to a Non-PoE zone in the 640 RPS/EPS, or vice versa. The 640 RPS/EPS / 2920 Switch system was designed to prevent misconnections from either harming devices or impacting functioning connections. If you make such an unsupported connection, there are error messages and status indications that will identify the error. 1-6

15 Introducing the HP 640 RPS/EPS Shelf Default Configuration and Operation Default Configuration and Operation By default, the PSU installed in each 640 RPS/EPS bay can provide RPS (backup) power to any one of the 2920 Switches that is connected to the associated zone and which experiences an internal PSU failure. If a switch that is connected to a zone experiences an internal PSU failure, all power from the PSU installed in that zone, both switch operating power and any requested PoE power, is provided only to that switch. If the internal PSUs for all of the switches connected to a zone are functioning correctly, then the EPS (PoE) power provided by the 640 RPS/EPS zone is shared between all the ports for a given zone. The way that the EPS power is shared between the ports is configurable via the 2920 Switch command line interface (CLI). Introducing the HP 640 RPS/ EPS Shelf For more information on the operation of the 640 RPS/EPS to provide RPS and EPS power, see Chapter 3, "Using the 640 RPS/EPS with the HP 2920 Switches". For more information on configuring the 640 RPS/EPS ports, see the topology examples in Chapter 3, and see the Management and Configuration Guide (for software version WB or later) for your 2920 Switch. The Management and Configuration Guide can be found on the HP Networking web site, networking/support. Auto search on 2920, select any of the 2920 switch models in the list, and click on Display selected. Then click on the links that have Manuals in them to get to the web page that lists the available manuals. 1-7

16 Introducing the HP 640 RPS/EPS Shelf Default Configuration and Operation Introducing the HP 640 RPS/ EPS Shelf 1-8

17 2 Installing and Connecting the 640 RPS/EPS The 640 RPS/EPS comes with an accessory kit that includes the brackets for mounting the unit in a standard 19-inch telco rack or in an equipment cabinet, and rubber feet that can be attached so the unit can be securely located on a horizontal surface. The brackets are designed to allow mounting the unit in a variety of locations and orientations. This chapter shows you how to install the 640 RPS/EPS including: included parts (page 2-1) installation procedures (page 2-2) installation precautions (page 2-3) Included Parts Installing and Connecting the 640 RPS/EPS The 640 RPS/EPS has the following components shipped with it: HP 640 RPS/EPS Quick Setup Guide and Safety/Regulatory Information Customer Support/Warranty booklet ( ) Accessory kit ( ) two mounting brackets eight 8-mm M4 screws to attach the mounting brackets to the unit four 5/8-inch number screws to attach the unit to a rack four rubber feet No PSUs are included with the 640 RPS/EPS. They must be purchased separately. To connect 2920 Switches to the 640 RPS/EPS, you will also need to purchase a 1-meter EPS/RPS cable (J9806A) for each switch. 2-1

18 Installing and Connecting the 640 RPS/EPS Installation Procedures Installation Procedures Summary Installing and Connecting the 640 RPS/EPS Follow these steps to install the 640 RPS/EPS. The rest of this chapter provides details on these steps. 1. Prepare the installation site (page 2-4). Make sure the physical environment into which the 640 RPS/EPS will be installed is properly prepared, including having the correct cabling ready to connect to the unit and having an appropriate location for the unit. See page 2-3 for installation precautions. 2. Install the power supplies (page 2-4). The 640 RPS/EPS does not come with any power supplies installed. You must purchase them separately and install them. Make sure to use only power supplies that are designed to operate with the 640 RPS/EPS. 3. Mount the 640 RPS/EPS (page 2-6). The unit can be mounted in a 19-inch telco rack, in an equipment cabinet, or on a horizontal surface. 4. Connect AC power to the 640 RPS/EPS (page 2-8). Connect the installed PSUs to a nearby main AC power source. 5. Verify the 640 RPS/EPS is operating correctly (page 2-9). This is a simple process of observing that the LEDs on the unit s front panel indicate correct operation. 6. Connect the 640 RPS/EPS to supported switch(es) (page 2-10). Using the EPS/RPS cables, connect the unit to the 2920 Switches that it will support. Make sure to comply with the topology rules described Chapter 3, "Using the 640 RPS/EPS with the HP 2920 Switches". At this point, your 640 RPS/EPS is fully installed. See the rest of this chapter if you need more detailed information on any of these installation steps. 2-2

19 Installing and Connecting the 640 RPS/EPS Installation Procedures Installation Precautions: Follow these precautions when installing your 640 RPS/EPS: Warnings Do not mount the 640 RPS/EPS on a wall. Do not carry the 640 RPS/EPS by using the handles of any installed power supplies. Ensure that the rack or cabinet in which the 640 RPS/EPS is mounted is adequately secured to prevent it from becoming unstable and/or falling over. Devices installed in a rack or cabinet should be mounted as low as possible, with the heaviest devices at the bottom and progressively lighter devices installed above. Ensure a cover plate is installed on any empty power supply bay. A cover plate is required for safe operations, and to ensure proper cooling of the 640 RPS/EPS. Multiple power supplies may be installed in the 640 RPS/EPS. The unit is not completely powered off until all of the installed power supplies are disconnected from active AC power. Installing and Connecting the 640 RPS/EPS Cautions Make sure the power source circuits are properly grounded, then use the power cord supplied with the X331 or X332 power supplies that you install into the 640 RPS/EPS to connect to the AC power source. If your installation requires a different power cord than the one supplied with the X331 or X332 power supplies, be sure the cord is adequately sized for the power supply s current requirements. In addition, be sure to use a power cord displaying the mark of the safety agency that defines the regulations for power cords in your country/region. The mark is your assurance the power cord can be used safely with the power supplies. When installing the 640 RPS/EPS, note that the AC outlet should be near the unit and should be easily accessible in case the unit must be powered off. Ensure the 640 RPS/EPS does not overload the power circuits, wiring, and over-current protection. To determine the possibility of overloading the supply circuits, add together the ampere ratings of all devices installed on the same circuit as the unit and compare the total with the rating limit for the circuit. The maximum ampere ratings are usually printed on devices near the AC power connectors. Continued on the next page. 2-3

20 Installing and Connecting the 640 RPS/EPS Installation Procedures Do not install the 640 RPS/EPS in an environment where the operating ambient temperature might exceed 55 C (131 F). Make sure the air flow around the front and back of the 640 RPS/EPS is not restricted. Leave at least 7.6 cm (3 inches) for cooling. Air flow for the 640 RPS/EPS is front to back. If this unit is placed in a fully enclosed rack, make certain the ambient temperature inside the rack near the unit does not exceed 55 C (131 F). For safe operation and to prevent equipment damage, DO NOT connect EPS/RPS cables or power cables to non-supported equipment or in non-supported configurations. Installing and Connecting the 640 RPS/EPS 1. Prepare the Installation Site Cabling - Use only the 1 meter EPS/RPS cables (J9806A) for external power connections between the 640 RPS/EPS and the 2920 switches. Installation Location - Before installing the unit, plan its location and orientation relative to other devices and equipment: In both the front and back of the unit, leave at least 7.6 cm (3 inches) of space for the EPS/RPS cables, and the power cord, and for cooling. Locate the 640 RPS/EPS close enough to the 2920 Switches that it supports so that it can be connected via the 1 meter EPS/RPS cables. Locate the 640 RPS/EPS so that it is close to the AC main power source, in case it has to be disconnected from AC power, for whatever reason. 2. Install the Power Supplies The Power Supply Shelf does not come with power supplies installed. You must purchase power supplies separately and install them. The supported power supplies are the: HP X W PSU (J9739A) non PoE HP X W PSU (J9738A) PoE HP X W PSU (J9737A) PoE 1. Remove the power supply cover, if present, from any of the three 640 RPS/ EPS power bays. Any bay may be used depending on your installation requirements. You do not have to use bay 1 first, for example. 2-4

21 Installing and Connecting the 640 RPS/EPS Installation Procedures 2. Slide the power supply into the slot until it clicks into place. Make sure that the power supply is fully seated into the bay s connector. See the Caution about compatible power supplies below. Note Figure 2-1. Installing a power supply Any of the three supported PSUs can be installed in any of the 640 RPS/EPS PSU bays, but make sure that the PSU in the bay is equal to or larger in power than the PSU in any of the switches connected to the zone for that bay. For example, if a 575W PSU is installed in a 640 RPS/EPS bay, then none of the switches connected to the zone for that bay can have a 1050W PSU installed in them. Installing and Connecting the 640 RPS/EPS See Chapter 3, "Using the 640 RPS/EPS with the HP 2920 Switches" for more information. Caution Use a power supply that is compatible with the HP 640. Incompatible power supplies are mechanically keyed to prevent accidental insertion into the 640 RPS/EPS. Forcing an incompatible power supply into the 640 RPS/EPS may cause permanent damage to the unit. See Appendix A for the identities of the compatible power supplies. When a compatible power supply is fully inserted, the maroon colored latch will click into position to ensure that the Power Supply is correctly secured. If the power supply is not easily pushed into the fully inserted position, re-verify that a compatible supply is being used, and re-attempt insertion. HP produces a variety of power supplies in the form factor used in the 640 RPS/ EPS. Some of these power supplies use voltages and power levels that are not compatible with the 640 RPS/EPS. Verify that the power supply you have chosen is compatible with the 640 RPS/EPS. 2-5

22 Installing and Connecting the 640 RPS/EPS Installation Procedures 3. Mount the 640 RPS/EPS The 640 RPS/EPS can be mounted in these ways: in a rack or cabinet on a horizontal surface The 640 RPS/EPS is not designed to be mounted on a wall. Rack or Cabinet Mounting Installing and Connecting the 640 RPS/EPS WARNING Equipment Cabinet Note The 640 RPS/EPS is designed to be mounted in any EIA-standard 19-inch telco rack or communication equipment cabinet. The mounting brackets have multiple mounting holes and can be rotated allowing for a wide variety of mounting options. For safe operation, please read the installation precautions on page 2-3, before mounting the unit. The screws supplied with the unit are the correct threading for standard EIA/TIA open 19-inch racks. If you are installing the unit in an equipment cabinet such as a server cabinet, use the clips and screws that came with the cabinet in place of the screws that are supplied with the unit. 1. Use a #1 Phillips (cross-head) screwdriver and attach the mounting brackets to the unit with the included 8-mm M4 screws. The screws must be tightened sufficiently to provide proper support for the unit in the rack, but not so tight as to strip the screw hole threads in the 640 RPS/EPS body. Figure 2-2. Attaching brackets to the 640 RPS/EPS 2-6

23 Installing and Connecting the 640 RPS/EPS Installation Procedures Caution For safe reliable installation, only use the screws provided in the accessory kit to attach the mounting brackets to the unit. Note The mounting brackets have multiple mounting holes and can be rotated allowing for a wide variety of mounting options. These include mounting the unit so that its front face is flush with the face of the rack as shown in the illustration above. 2. Hold the 640 RPS/EPS with attached brackets up to the rack and move it vertically until rack holes line up with the bracket holes, then insert and tighten the four number screws holding the brackets to the rack. Installing and Connecting the 640 RPS/EPS Figure 2-3. Mounting the 640 RPS/EPS in a rack Note A rail kit is available for mounting the 640 RPS/EPS in 4-post racks and equipment cabinets the HP X410 Rail Kit (J9583A). For more information, see the documentation that is included with the kit. 2-7

24 Installing and Connecting the 640 RPS/EPS Installation Procedures Horizontal Surface Mounting Place the unit on a table or other horizontal surface. The unit comes with rubber feet in the accessory kit that can be used to help keep the unit from sliding on the surface. Attach the rubber feet to the four corners on the bottom of the unit within the embossed rectangles. Place the 640 RPS/EPS on a sturdy surface in an uncluttered area. You may want to secure the RPS/EPS cables and the unit s power cord to the table leg or other part of the surface structure to help prevent tripping over the cords. Installing and Connecting the 640 RPS/EPS Caution Make sure the air flow is not restricted around the front or back of the unit. 4. Connect AC Power Connect the AC power cord supplied with the 640 RPS/EPS to the power connector on the back of the unit, and then into a properly grounded electrical outlet. Figure 2-4. Connecting AC power The 640 RPS/EPS does not have a power switch. It is powered on when at least one PSU is installed in any of the 640 RPS/EPS power supply bays and connected to an active AC power source. For safety, the AC power outlet should be located near the unit installation. 2-8

25 Installing and Connecting the 640 RPS/EPS Installation Procedures The three PSUs automatically adjust to any voltage between and volts and either 50 or 60 Hz. There are no voltage range settings required. Important ONLY HP power cords are supported. Use only the power cord that was supplied with the HP X331 or X332 power supply. 5. Verify Correct Operation When the 640 RPS/EPS is mounted in its location and powered on, you should first verify it is working properly by checking the unit s LEDs. Check the LEDs on the unit as described below. After power on is completed: Power LED = On Fault LED = Off Installing and Connecting the 640 RPS/EPS Figure 2-5. Verifying correct operation When the unit is powered on, all LEDs will light up briefly (approximately 8 seconds) then go off except for the power LED, which should remain on. 2-9

26 Installing and Connecting the 640 RPS/EPS Installation Procedures 6. Connect the 640 RPS/EPS to the Switches Connect the EPS/RPS cables from the supported network switches to the appropriate ports on the 640 RPS/EPS. See Chapter 3, "Using the 640 RPS/EPS with the HP 2920 Switches" for information on supported topologies for these connections. 1. Push the EPS/RPS cable connector into the desired port until the thumb screws engage with the screw holes in the unit. Then hand tighten the retaining screw. The screw should be snug, but not overly tightened. Installing and Connecting the 640 RPS/EPS Figure 2-6. Connecting the EPS/RPS cable to the 640 RPS/EPS 2. Connect the other end of the EPS/RPS cable to the connector on the switch. Then tighten the retaining screw. 2-10

27 Installing and Connecting the 640 RPS/EPS Installation Procedures Always attach the EPS cable to the connector that is associated with an installed power supply. For example, if there is a power supply installed in bay 1, connect the EPS cable to one of the ports for bay 1. When power is on for the 640 RPS/EPS and for the connected switch, the Device Connected LED should go on to confirm a powered-on switch is at the other end of the cable. If the Device Connected LED does not go on when the cable is connected to the port, see Diagnosing with the LEDs in chapter 4, Troubleshooting the 640 RPS/ EPS. Caution To disconnect: Unscrew the thumb screws on the plug and pull the plug out of the port. Disconnecting the EPS/RPS (PoE power) cable with power flowing is not supported, and could cause loss of PoE power to all network devices connected to the switch. If power is flowing between the 640 RPS/EPS and a switch, then the affected 640 RPS/EPS zone must be powered down first, by disconnecting the PSU in that zone from AC power, before disconnecting the EPS cable. Optionally, the affected 640 RPS/EPS port can be disabled via the CLI of the switch connected to that port. Only the power supply to be disconnected must be powered down or its port disabled. Installing and Connecting the 640 RPS/EPS Connecting the EPS/RPS cable may be done at any time. 2-11

28 Installing and Connecting the 640 RPS/EPS Installation Procedures Installing and Connecting the 640 RPS/EPS 2-12

29 3 Using the 640 RPS/EPS with the HP 2920 Switches This chapter describes the procedures for using a 640 RPS/EPS with your HP 2920 switches. Specifically, it describes the following: Redundant (RPS) operation using the 640 RPS/EPS to provide backup power for connected 2920 Switches, both non-poe and PoE switches. Extra power (EPS) operation using the 640 RPS/EPS to provide extra PoE power to connected 2920 Switches, Recovery operation, in situations in which the 640 RPS/EPS and 2920 Switches are incorrectly connected together or the switch is configured in such a way as to cause the 640 RPS/EPS to behave unexpectedly. Redundant (RPS) Operation As an RPS, the 640 RPS/EPS will provide N+1 redundancy to protect against the event of a PSU failure, which means that a failure of either the 640 RPS/EPS PSU in a zone or the PSU of any one of the 2920 Switches connected to that zone will result in the continuing operation of the 2920 Switches. RPS operation is available for both non-poe and PoE 2920 Switches. As shown in figure 3-1, for example, if the starting configuration is with two fully operating 2920 Switches and one 640 RPS/EPS, with both 2920s forwarding traffic and providing PoE power to connected devices, then the behavior will be the same for the two switches. Using the 640 RPS/EPS with the HP 2920 Switches 3-1

30 Using the 640 RPS/EPS with the HP 2920 Switches Redundant (RPS) Operation Figure 3-1. RPS Operation prior to a PSU failure Using the 640 RPS/EPS with the HP 2920 Switches If the PSU fails in one of the 2920 Switches, then, as shown in figure 3-2, the switch continues to operate, now depending on the PSU in the 640 RPS/EPS for power. Note that after the Switch 1 PSU failure, Switch 2 will no longer receive any power from the 640 RPS/EPS, and since the potential total amount of PoE available has been reduced, some PoE devices connected to both switches may lose power. Figure 3-2. RPS Operation after switch PSU failure 3-2

31 Using the 640 RPS/EPS with the HP 2920 Switches Redundant (RPS) Operation Using the same example but having the PSU inside the 640 RPS/EPS fail instead of the 2920 Switch yields the same result, as shown in figure 3-3. If either Switch 1 or Switch 2 was receiving additional PoE from the 640 RPS/EPS, then after the PSU failure, since that PoE will no longer be available, some PoE devices connected to both switches could lose power. Figure 3-3. RPS Non-Operation after 640 RPS/EPS PSU failure The 640 RPS/EPS is not designed to provide redundancy during the event of multiple PSU failures. In other words, N+1 failures are supported but not N+2 for a single 640 RPS/EPS PSU zone. If more than one PSU fails within a single zone of interconnected 640 RPS/EPS and 2920 Switches, there will be a loss of service. As shown in figure 3-4, if the PSU in a second switch fails, since the first switch is already being backed up by the PSU in the 640 RPS/EPS, the second switch will discontinue operation. Using the 640 RPS/EPS with the HP 2920 Switches 3-3

32 Using the 640 RPS/EPS with the HP 2920 Switches Redundant (RPS) Operation Figure 3-4. RPS Operation after second switch PSU failure Using the 640 RPS/EPS with the HP 2920 Switches As shown in figure 3-5, if the second PSU that fails is in the 640 RPS/EPS while it is providing backup power for the first 2920 Switch, then since that backup power is no longer available, the first switch will be the one that discontinues operation. Figure 3-5. RPS Operation if the second PSU failure is in the 640 RPS/EPS 3-4

33 Using the 640 RPS/EPS with the HP 2920 Switches Extra Power (EPS) Operation Extra Power (EPS) Operation General Operation EPS Operation can be used with 2920-PoE Switches to provide additional PoE power beyond which a 2920 s own internal power supply could supply by itself. For example, a 2920 Switch by itself with a 1050W PSU installed can only support 740W of PoE power to PDs (PoE powered devices). However, it is possible, using a 640 RPS/EPS, that the 2920 Switch could support up to 1440W of PoE (740W from its own internal PSU and up to an additional 700W of PoE from the PSU in the 640 RPS/EPS). The amount of actual power coming from the 640 RPS/EPS depends on the configurations of the switches connected to the 640 RPS/EPS zone. The operation of the 640 RPS/EPS is in part controlled by the configurations of the connected switches. See the note below. Note on Default EPS Operation By default, all the ports in a 640 RPS/EPS zone share the available power. In the figures in this section that show block diagrams of the 640 RPS/EPS and connected switches, the initial condition is that a single port in the 640 RPS/EPS zone being discussed is delivering all the power for that zone to its connected switch. The command to create that condition must have been executed on the switch that is connected to that port. The command is: HP Switch(config)# external-power-supply power-share zoneport where zone is the 640 RPS/EPS zone and port is the 640 RPS/EPS port in that zone to which the switch is connected, for example 1A. Figures 3-13 and 3-14 show this initial condition. Each of the subsequent figures shows a change to this initial condition. The commands to execute the displayed change are shown after each figure. Using the 640 RPS/EPS with the HP 2920 Switches This section describes what happens for these events: 1. Initial power up of a 640 RPS/EPS and a 2920 Switch. 2. Adding a 2920 Switch to an existing, operating configuration of a 640 RPS/ EPS and a connected 2920 Switch. For examples of different combinations of 2920 Switches connected to a 640 RPS/ EPS, see the section EPS Rules and Supported Configurations on page

34 Using the 640 RPS/EPS with the HP 2920 Switches Extra Power (EPS) Operation Initial Power Up of 640 RPS/EPS with 2920 Switches There are two scenarios. Simultaneous power up of a the 640 RPS/EPS and one or more connected 2920 Switches. Connecting a 640 RPS/EPS to an already operating 2920 Switch. In both of these instances, prior to power being allowed to flow between the 640 RPS/EPS and any 2920 Switch, the 640 RPS/EPS is discovered by each switch, checked, and a determination is made by the switch software and customer configuration about how much power can be allocated to any and each of the switches. In the example shown in figure 3-6, the 640 RPS/EPS has a 1050W PSU and the connected switch has a 575W PSU. The switch s PSU provides 370W of PoE and the 640 RPS/EPS PSU can provide up to an additional 700W of PoE, depending on the 640 RPS/EPS zone that is used, and on the switch configuration. Using the 640 RPS/EPS with the HP 2920 Switches Figure 3-6. Simple Power up 640 RPS/EPS/2920 state transition to operational 3-6

35 It is important that: Using the 640 RPS/EPS with the HP 2920 Switches Extra Power (EPS) Operation The switch software will insure that power will not flow if unsupported configurations are connected. The switch software will adhere to any customer configuration. A more complete descriptive explanation of state transitions could be illustrated with the near simultaneous power-up of the 640 RPS/EPS and two 2920s each with a 1050W PSU with configuration settings to allow EPS operation, as shown in figure 3-7. Figure 3-7. Power up Flow for a 640 RPS/EPS and two 2920s with 1050W PSUs Using the 640 RPS/EPS with the HP 2920 Switches Note Although the power up sequence shows the 640 RPS/EPS with 2920-PoE models, the same sequence applies for Non-PoE models. The difference is that only RPS (redundancy) operation is supported for the non-poe switches. 3-7

36 Using the 640 RPS/EPS with the HP 2920 Switches Extra Power (EPS) Operation Adding a 2920 Switch to an Existing 640 RPS/EPS 2920 System It is a valid customer operation to add another 2920 Switch into an operating 640 RPS/EPS 2920 system. The added 2920 Switch can already be powered up prior to the connection to the 640 RPS/EPS, or it can be powered up after the connection is completed. This is the sequence of events that occurs when you add a 2920 Switch to an existing 640 RPS/EPS 2920 system, barring policy, configuration, or other problems which would halt admission of the new switch. 1. The initial state is the existing 640 RPS/EPS 2920 system operating as configured/supported. 2. The second 2920 is discovered by the system and the configuration is checked while no change is made to the operation of the initial 640 RPS/EPS 2920 system. 3. Per the switch configuration, the existing 2920 s PoE power allocation from the 640 RPS/EPS is reduced to prepare for admitting the new 2920 into the system. 4. Power flow is enabled to the new 2920 from the 640 RPS/EPS. 5. Per the configuration that is implemented on the two 2920s, the new 2920 is allocated power from the 640 RPS/EPS. Using the 640 RPS/EPS with the HP 2920 Switches Figures 3-8 through 3-11 show this sequence with the first switch and the 640 RPS/ EPS having 1050W PSUs and the second switch having a 575W PSU. Figure 3-12 shows a flow diagram of this sequence but with all the PSUs being the 1050W type. Figure 3-8. Initial State an operating system of one 2920 and a 640 RPS/EPS 3-8

37 Using the 640 RPS/EPS with the HP 2920 Switches Extra Power (EPS) Operation Figure 3-9. Discovery State: 2nd 2920 being discovered after being connected Using the 640 RPS/EPS with the HP 2920 Switches Figure Preparation state: PoE from the RPS/EPS reduced to existing 2920 prior to 2nd 2920 admission 3-9

38 Using the 640 RPS/EPS with the HP 2920 Switches Extra Power (EPS) Operation In the above diagram, the switch connected to port A of the 640 RPS/EPS is configured to receive all the PoE power from the 640 RPS/EPS (700W). To allow power to be distributed to a second switch, you must first execute the following commands from both of the switches connected to the 640 RPS/EPS zone (zone 1 in this example): HP Switch (config)# external-power-supply power-share allow 2 HP Switch (config)# external-power-supply power-share 1A,1B Figure 3-11 shows the resulting power distribution between the two switches. Using the 640 RPS/EPS with the HP 2920 Switches Figure Activation followed by Allocation state - 2nd 2920 power flow enabled and then PoE from RPS/EPS is allocated 3-10

39 Using the 640 RPS/EPS with the HP 2920 Switches Extra Power (EPS) Operation Figure Example, adding a 2nd 2920 Switch to an existing 640 RPS/EPS 2920 system (all with 1050W PSUs) Using the 640 RPS/EPS with the HP 2920 Switches 3-11

40 Using the 640 RPS/EPS with the HP 2920 Switches Extra Power (EPS) Operation EPS Rules and Supported Configurations There are a fixed set of supported EPS configurations with a simple set of rules governing how these configurations work. However, with two kinds of PSUs and up to four outputs for each 640 RPS/EPS power bay, there are a number of valid EPS configurations. The EPS valid configurations will be detailed in a further section of this document. A couple of key points about EPS operation: Switch software will always prevent a user from trying to create an invalid EPS configuration. Error messages and logs will result. This means even if you make an error in trying to allocate power, no currently operating switch will experience a loss or reduction in service. A PSU failure during EPS operation will always result in RPS behavior/ configurations as shown in the section Redundant (RPS) Operation on page 3-1. Providing More PoE Using 640 EPS Operation Using the 640 RPS/EPS with the HP 2920 Switches There are two basic ways that you have to change/increase the amount of PoE power that your 2920 Switch may deliver. Swap the switch s internal power supply from a 575W to a 1050W PSU. This will increase the PoE that the switch PSU can supply from 370W to 740W. Connect and configure a 640 RPS/EPS to add additional PoE capacity. There are several important terms/definitions and concepts that are used in describing how the 640 RPS/EPS 2920 system determines power allocation, and *you should understand these: Internal Power is the amount of power a switch is entitled to based on the type of PSU that is populated in the 2920 Switch. 1050W PSU has an internal power rating of 740W of PoE (plus additional power to operate the switch). 575W PSU has an internal power rating of 370W of PoE (plus additional power to operate the switch). External Power is the amount of PoE power that, in addition to internal PoE power, can be provided to a 2920 Switch s PDs. The amount of external power is a function of what kind of PSU is installed in 640 RPS/EPS bay, the power distribution configuration that you have executed on the 2920 Switch, and the number of ports that are enabled in the 640 RPS/EPS zone. 3-12

41 Using the 640 RPS/EPS with the HP 2920 Switches Extra Power (EPS) Operation Total Power is the combined amount of Internal Power + External Power that a 2920 Switch can provide to its PDs. 640 RPS/EPS 2920 System a set of 2920s that are connected to a single 640 RPS/EPS s zone. The operational status of each 2920 in the system, including redundancy operation and the amount of PoE that the 2920 can provide, is potentially affected by other PSUs in the system, both the PSU in the 640 RPS/EPS zone and the PSUs in the other 2920s connected to that zone. Operating Rules There will be power flow between the 640 RPS/EPS and a connected 2920 Switch if these conditions are met: PSUs in the switch or the 640 RPS/EPS are valid, recognized models. All PSUs in a zone are mutually compatible. That is, 2920-PoE Switches are connected to 640 RPS/EPS zones that have PoE PSUs installed, and non-poe switches are connected to non-poe zones. The potential zone configuration is supported. Important The power of the PSU in any 640 RPS/EPS zone must always be equal or larger than the power of the internal power supply in any switch connected to that zone. If a 1050W PSU is installed in a switch, it cannot be connected to a 640 RPS/EPS zone that has a 575W PSU installed in it. By default, switch ports have PoE prioritized starting with the lowest numbered port. That is, switch port one has the highest priority. If the 640 RPS/EPS is providing external power to multiple switches in a zone, and the internal PSU in a connected switch fails, all power in that zone will be applied to the failed switch no PoE power will be provided by the 640 RPS/EPS to any of the non-failed connected switches. As a result, in the non-failed switches, the lowest priority ports might lose PoE power. Only the higher priority ports, up to the PoE capacity of the switch s internal power supply, will be provided with PoE power. Using the 640 RPS/EPS with the HP 2920 Switches You should always connect the devices with the highest requirement for nonstop PoE to the lowest numbered switch ports. 3-13

42 Using the 640 RPS/EPS with the HP 2920 Switches Extra Power (EPS) Operation Supported EPS Configurations The supported EPS power allocation topologies are based on: The number of ports that are enabled in the 640 RPS/EPS zone (one to four, depending on the zone) The kind of PSUs inside 640 RPS/EPS (575W PSU or 1050W PSU) Tables 3-1 and 3-2 show these supported topologies, as well as the maximum amount of PoE power available based on size of the 640 RPS/EPS PSU, and the number of 640 RPS/EPS ports that are enabled in the zone. Table 3-1. Maximum PoE Power Available with 575W PSU in 640 RPS/EPS Zone Number of ports enabled in the zone For 2920 Switch with 575W PSU and 640 RPS/EPS with 575W PSU PoE from 640 RPS/EPS PSU PoE from switch PSU Total PoE For 2920 Switch with 1050W PSU and 640 RPS/EPS with 575W PSU PoE from 640 RPS/EPS PSU PoE from switch PSU Total PoE 1 port (zones 1,2, or 3) 370W 370W 740W 0W (not supported) 740W 740W Using the 640 RPS/EPS with the HP 2920 Switches 2 ports (zones 1, 2, or 3) 3 ports (zone 1 only) 4 ports (zone 1 only) Number of ports enabled in the zone 140W 60W 0W 370W 370W 370W 510W 430W 370W The PSU in the 640 RPS/EPS must have equal to or greater power (Watts) than the PSU in the switch (see Table 3-2) 740W 740W 740W 740W 740W 740W Table 3-2. Maximum PoE Power Available with 1050W PSU in 640 RPS/EPS Zone For 2920 Switch with 575W PSU and 640 RPS/EPS with 1050W PSU PoE from 640 RPS/EPS PSU PoE from switch PSU Total PoE For 2920 Switch with 1050W PSU and 640 RPS/EPS with 1050W PSU PoE from 640 RPS/EPS PSU PoE from switch PSU Total PoE 1 port (zones 1,2, or 3) 2 ports (zones 1, 2, or 3) 3 ports (zone 1 only) 4 ports (zone 1 only) 700W 370W 1070W 700W 740W 1440W 370W 370W 740W 370W 740W 1110W 130W 370W 500W 130W 740W 870W 60W 370W 430W 60W 740W 800W 3-14

43 EPS Configuration Examples Using the 640 RPS/EPS with the HP 2920 Switches Extra Power (EPS) Operation This section presents several examples of 640 RPS/EPS 2920 systems, including diagrams of the setup and configuration commands that you must issue to the 2920 Switch(es) to get the setup to work correctly. Note Starting Configuration for EPS Configuration Examples. By default, all the ports in a 640 RPS/EPS zone share the available power equally. For each of the examples in this section, this default configuration is assumed. The commands that you must execute on the switches to create the configuration shown in each example are shown after the diagrams. Examples Using Single 640 RPS/EPS Zones 1440W, Single 2920 Example. This configuration is a way that you can provide up to a total of 1440W of PoE for the PDs attached to a single 2920 Switch: Up to 30W to each of the 24 ports in a PoE+ Switch Up to 30W to each of the 48 ports in the PoE+ Switch With N+1 Redundancy support, if either the 640 RPS/EPS PSU or the 2920 Switch PSU fails, the system will still provide 740W of PoE. Using the 640 RPS/EPS with the HP 2920 Switches Figure EPS Example Configurations: 1440W, Single Switch Configuration Configuration Commands. Execute this command on the switch connected to the 640 RPS/EPS port 1A: HP Switch(config)# external-power-supply power-share 1A 3-15

44 Using the 640 RPS/EPS with the HP 2920 Switches Extra Power (EPS) Operation 740W, Single 2920 Switch Example. This configuration is a way that you can provide up to a total of 740W of PoE for the PDs attached to a single 2920 Switch: Up to 30W to each of the 24 ports in any 2920 PoE+ Switch Up to 15.4W to each of the 48 ports in the PoE+ Switch With N+1 Redundancy support, if either the 640 RPS/EPS PSU or the 2920 Switch PSU fails, the system will still provide 370W of PoE. Figure EPS Example Configurations: 740W, Single 2920 Example Using the 640 RPS/EPS with the HP 2920 Switches Configuration Commands. Execute this command on the switch connected to the 640 RPS/EPS port 1A: HP Switch(config)# external-power-supply power-share 1A 3-16

45 Using the 640 RPS/EPS with the HP 2920 Switches Extra Power (EPS) Operation 740W, Dual 2920 Switch Example. This example configuration, you can provide up to 740W of PoE to all attached PDs in two switches. Each 2920 could provide up to: 30W to 24 ports in any 2920 PoE model, or 15.4W to 48 ports in the PoE model With N+1 Redundancy support, if either the 640 RPS/EPS PSU or either one of the 2920 Switch PSUs fails (single PSU failure in the system), the system will still provide 370W of PoE. Figure EPS Example Configurations: 740W, Dual 2920 Example Configuration Commands. In the above diagram, a second switch has been connected to the zone. To provide power to the two ports, 1A and 1B, execute the following external-power-supply commands on both of the 2920 Switches that are connected to that zone: Using the 640 RPS/EPS with the HP 2920 Switches HP Switch(config)# external-power-supply power-share 1A, 1B For more information, see the section Adding a 2920 Switch to an Existing 640 RPS/EPS 2920 System on page

46 Using the 640 RPS/EPS with the HP 2920 Switches Extra Power (EPS) Operation Examples Using Multiple 640 RPS/EPS Zones To help clarify the supported configurations, here are some additional examples of 640 RPS/EPS 2920 systems involving single or multiple switches being connected to multiple 640 RPS/EPS zones. Single Switch in all Three Zones. Using the 640 RPS/EPS with the HP 2920 Switches Figure EPS Example Configurations: One Switch per Zone Configuration Commands. In the above diagram, to provide all the power to the single ports 1A, 2A, and 3B, execute the following external-power-supply command on each of the 2920 Switches that is connected to the three zones: HP Switch(config)# external-power-supply power-share RPS/EPS-port where RPS/EPS-port is the number of the 640 RPS/EPS port to which the switch is connected, for example 3B for the bottom switch. 3-18

47 Using the 640 RPS/EPS with the HP 2920 Switches Extra Power (EPS) Operation Two Switches per Zone. Using the 640 RPS/EPS with the HP 2920 Switches Figure EPS Example Configurations: Two Switches per Zone 3-19

48 Using the 640 RPS/EPS with the HP 2920 Switches Extra Power (EPS) Operation Configuration Commands. In the figure 3-17, to provide the indicated power to the 640 RPS/EPS ports, execute the following external-power-supply commands on each of the 2920 Switches that are connected to each zone: Switch 1 (in Zone 1) HP Switch(config)# external-power-supply power-share 1A, 1C Switch 2 (in Zone 1) HP Switch(config)# external-power-supply power-share 1A, 1C Note Since by default all the ports in a given zone are enabled and will share the available PoE power equally, for Switches 3 and 4 (in Zone 2), and Switches 5 and 6 (in Zone 3), no configuration commands are required. Configuration Commands for a 2920 Stack. In figure 3-17, if the 2920 Switches 1, 2, 3, and 4, for example, are in a 2920 Stack, the commands change to include a specification of the stack member ID and to take advantage of the fact that one of the switches acts as the stack commander. Using the 640 RPS/EPS with the HP 2920 Switches If Switch 1 is the stack commander and stack member 1, Switch 2 is stack member 2, Switch 3 is stack member 3, and Switch 4 is stack member 4, the commands to set the configuration shown in that figure would all be issued to the stack commander (Switch 1). The command is the following: HP Switch(config)# external-power-supply member 1 power-share 1A, 1C For the same reason as indicated in the note above, no commands have to be issued for Switch 3 and Switch 4. For more information on configuring the 640 RPS/EPS ports, see the Management and Configuration Guide (for software version WB or later) for your 2920 Switch. The Management and Configuration Guide can be found on the HP Networking web site, Enter 2920 in the Product search box, then select HP 2920 Switch Series from the list that is displayed. A web page with the available manuals is then shown. 3-20

49 Using the 640 RPS/EPS with the HP 2920 Switches Extra Power (EPS) Operation Figure EPS Example Configuration: Four Switches in Zone 1 Using the 640 RPS/EPS with the HP 2920 Switches Configuration Commands. In the above diagram, since the default configuration is that all 640 RPS/EPS ports are enabled and are equally sharing the PoE power provided by the PSU installed in the 640 RPS/EPS zone, no changes to the configuration of the connected switches would be necessary. 3-21

50 Using the 640 RPS/EPS with the HP 2920 Switches Extra Power (EPS) Operation Unsupported EPS Configuration A 575W PSU in the 640 RPS/EPS can never be used with a 1050W PSU in a This configuration will not operate software will prohibit its operation. The reason to prohibit this configuration is because N+1 operation cannot be supported with this kind of connectivity. If the higher wattage PSU in the switch were to fail, there would not be enough power in the lower wattage PSU in the HP 640. A solution if you attempt this configuration is to swap the PSUs so that the 1050W PSU is in the 640 RPS/EPS and the 575W PSU is in the Thus, if you have both a 575W PSU and a 1050W PSU, you can always be supported with your existing equipment. Using the 640 RPS/EPS with the HP 2920 Switches Figure Unsupported Configuration - 575W PSU in HP 640 with 1050W PSU in 2920 Figure Supported Configuration W PSU in HP 640 with 575W PSU in

51 Using the 640 RPS/EPS with the HP 2920 Switches Extra Power (EPS) Operation Recovery Operations This section describes the operation of the 640 RPS/EPS 2920 system if there are software mis-configurations or failures of power supplies or power sources. These situations are covered: 1. What happens if there is an incorrect 640 RPS/EPS 2920 System topology or component failure? 2. What happens if a PSU fails in a non-poe system and can remediation take place? 3. What happens if a PSU fails in a PoE system and can remediation take place? 4. What happens if AC line voltage fails and what kind of remediation is required? 5. What happens if customers move EPS/RPS cables including to unsupported locations? If there is an incorrect 640 RPS/EPS 2920 System topology or component failure The design of the 640 RPS/EPS 2920 system is such that it will not allow operation if there are misconnections or component failures, and will not allow configuration of unsupported topologies. This means that power flow will not commence from the 640 RPS/EPS PSU to the 2920 Switch unless the following are all true: PSUs in added 640 RPS/EPS and/or 2920s are valid, recognized models. All PSUs in the potential system are mutually compatible. The potential system configuration is a supported configuration. There are no current failure conditions in the existing system. Any necessary reduction of PoE power provided by the 640 RPS/EPS to any switch is done in an orderly and configured way prior to admission of an additional switch. Using the 640 RPS/EPS with the HP 2920 Switches 3-23

52 Using the 640 RPS/EPS with the HP 2920 Switches Extra Power (EPS) Operation If a PSU fails in a non-poe system Initial Failure Behavior: If a 2920 PSU fails or is removed: Power flow is directed from the 640 RPS/EPS PSU towards only the switch with the failed PSU (RPS function). All other 2920 switches connected to the same zone as the failed switch have power flow disconnected from 640 RPS/EPS, so no RPS backup function is available to any other switch. There is no operational interruption with any of the switches in the system. All switches continue status communication with 640 RPS/EPS. If the 640 RPS/EPS PSU fails or is removed: The switches in the affected zone remain operational, using only their internal PSU power. All switches connected to the affected zone will no longer have any PSU backup from the 640 RPS/EPS (RPS function). Status communication with 640 RPS/EPS may cease if the 640 RPS/ EPS PSU failure removes all power from that unit. Post Failure Behavior/Re-mediation. Using the 640 RPS/EPS with the HP 2920 Switches After replacing the failed PSU, if auto-recovery is enabled (the default configuration), the following transition from failure mode to operational occurs: When the failed 2920 PSU is replaced: The inserted PSU will automatically operate and deliver power to the switch. The switch will rediscover the attached 640 RPS/EPS. The 640 RPS/EPS resumes its pre-failure configured state and operation. RPS backup functionality is restored to all 2920 switches in the affected zone. When the failed 640 RPS/EPS PSU is replaced: 640 RPS/EPS is powered up, and discovery of the 640 RPS/EPS takes place by the connected switches. The 640 RPS/EPS resumes its pre-failure configured state and operation. RPS backup functionality is restored to all 2920 switches in the affected zone. 3-24

53 Using the 640 RPS/EPS with the HP 2920 Switches Extra Power (EPS) Operation Note If auto-recovery is disabled on any of the switches in the affected zone, then the RPS and EPS functions of the 640 RPS/EPS will not resume automatically for those switches. To cause the RPS and EPS functions to resume, you must execute the following command via the CLI on the affected switches: HP Switch(config)# external-power-supply enable To restore the auto-recovery function, you must execute the following command on the affected switches: HP Switch(config)# external-power-supply auto-recovery enable If a PSU fails in a PoE system Initial Failure Behavior:. If an 2920 PSU fails or is removed: Power flow is directed from the 640 RPS/EPS PSU towards only the switch with the failed PSU (RPS function). All other 2920 switches connected to the same zone as the failed switch have power flow disconnected from 640 RPS/EPS. All attached 2920 switches disable the PoE ports that were powered by the extra PoE from the 640 RPS/EPS PSU. All attached 2920 switches continue to power the PoE ports that are powered by the switch s PSU without interruption. All switches continue status communication with 640 RPS/EPS. If the 640 RPS/EPS PSU fails or is removed: The switches in the affected zone remain operational, using only their internal PSU power. All attached 2920 switches disable PoE ports that were powered by the extra PoE from the 640 RPS/EPS PSU. All attached 2920 switches continue to power the PoE ports that are powered by the switch s PSU without interruption. Status communication with 640 RPS/EPS may cease if the 640 RPS/ EPS PSU failure removes all power from that unit. Using the 640 RPS/EPS with the HP 2920 Switches 3-25

54 Using the 640 RPS/EPS with the HP 2920 Switches Extra Power (EPS) Operation Using the 640 RPS/EPS with the HP 2920 Switches Note Post Failure Behavior/Re-mediation. After replacing the failed PSU, if auto-recovery is enabled (the default configuration), the following transition from failure mode to operational occurs: When the failed 2920 PSU is replaced: The inserted PSU will automatically operate and deliver power to the switch. The switch will rediscover the attached 640 RPS/EPS. The 640 RPS/EPS resumes its pre-failure configured state and operation, including configuration of enabled ports and PoE sharing. RPS backup and EPS functionality is restored to all 2920 switches in the affected zone, including restoring PoE operation to connected PoE devices that had been shut down because of loss of PoE from the failed switch PSU. When the failed 640 RPS/EPS PSU is replaced: 640 RPS/EPS is powered up, and discovery of the 640 RPS/EPS takes place by the connected switches. The 640 RPS/EPS resumes its pre-failure configured state and operation, including configuration of enabled ports and PoE sharing. RPS backup and EPS functionality is restored to all 2920 switches in the affected zone, including restoring PoE operation to connected PoE devices that had been shut down because of loss of PoE from the failed 640 RPS/EPS PSU. If auto-recovery is disabled on any of the switches in the affected zone, then the RPS and EPS functions of the 640 RPS/EPS will not resume automatically for those switches. To cause the RPS and EPS functions to resume, you must execute the following command via the CLI on the affected switches: HP Switch(config)# external-power-supply enable To restore the auto-recovery function, you must execute the following command on the affected switches: HP Switch(config)# external-power-supply auto-recovery enable 3-26

55 Using the 640 RPS/EPS with the HP 2920 Switches Extra Power (EPS) Operation If AC line voltage fails There are different scenarios: 1. Only the 640 RPS/EPS AC line fails This resembles a 640 RPS/EPS PSU failure. See the previous section on that type of failure. 2. Only the 2920 AC line fails This resembles a 2920 PSU failure. See the previous section on that type of failure. 3. Both the 2920 and 640 RPS/EPS AC lines fail This will force the system into the same condition as for the last saved switch configuration. If any configuration changes were not saved, the 640 RPS/EPS 2920 system is returned to the same condition as at initial power up. If an EPS/RPS cable is moved to an unsupported location Intelligent discovery mechanisms inside 2920/640 RPS/EPS will detect inappropriate connections and devices attached and power flow from the 640 RPS/EPS to the switch will not be permitted. Using the 640 RPS/EPS with the HP 2920 Switches 3-27

56 Using the 640 RPS/EPS with the HP 2920 Switches Extra Power (EPS) Operation Using the 640 RPS/EPS with the HP 2920 Switches 3-28

57 4 Troubleshooting the 640 RPS/EPS This chapter describes how to troubleshoot the 640 RPS/EPS. This chapter describes the following: basic troubleshooting tips (page 4-1) diagnosing with the LEDs (page 4-2) diagnostic tests (page 4-7) HP customer support services (page 4-8) Basic Troubleshooting Tips Caution Most problems are caused by the following situations. Check for these items first when starting your troubleshooting: Faulty or loose EPS/RPS cables. Look for loose or obviously faulty connections. If the cables appear to be OK, make sure the connections are secure. If that does not correct the problem, try a different cable. Connection topologies. It is important to make sure you have a valid connection topology between the 640 RPS/EPS and the 2920 switches. The supported topologies are listed and some examples are shown in Chapter 3, "Using the 640 RPS/EPS with the HP 2920 Switches" in this book. Configuration effects. Be sure to understand the effects of the externalpower-supply commands on the operation of the 640 RPS/EPS and its interaction with the connected switches. Misconfiguration of the 640 RPS/EPS from the connected switches can cause unexpected results. See Chapter 3, "Using the 640 RPS/EPS with the HP 2920 Switches" in this book for more information on how to correctly configure the 640 RPS/EPS from the connected switches. Use caution when power cycling the 640 RPS/EPS as this may affect all the devices receiving PoE power from the unit. Because the 640 RPS/EPS can house multiple power supplies, to fully power off the unit, you must make sure that all the installed power supplies are disconnected from AC power. Troubleshooting the 640 RPS/EPS 4-1

58 Troubleshooting the 640 RPS/EPS Diagnosing with the LEDs Diagnosing with the LEDs Table 4-1 shows LED patterns on the 640 RPS/EPS and connected switch that show normal operation. Table 4-2 shows the LED patterns that indicate problem conditions. 1. Check in the table for the LED pattern that you see on your unit. 2. Refer to the corresponding diagnostic tip on the next few pages. Table 4-1. LED Patterns Showing Normal Operation LEDs on the 640 RPS/EPS LED Pattern Table 4-2. LED Patterns Showing Error Conditions LEDs on the 2920 Switch Power Fault PS (1-3) 1A 1D, 2A, 2B, 3A, 3B XPS PS Fault Green on Off Green on Green on Green on Green on Off Troubleshooting the 640 RPS/EPS LEDs on the 640 RPS/EPS LEDs on the 2920 Switch Diagnostic Tip Power Fault PS (1-3) 1A 1D, 2A, 2B, 3A, 3B XPS PS Fault Green on Green on Green on Off Off Off Green on Green on Green on or Orange flashing Off Off Green on Green on for ports in use Orange flashing for ports with the error Green on Orange flashing Off Off Off Off Orange flashing Green on Green on Green on Green on Orange flashing Off Off Orange flashing Orange flashing Orange on solid Green on Green on Off Off Off Orange flashing Orange flashing Off or Orange flashing Orange flashing Green on Green on Green on Green on Green on Off 1 Orange flashing 2 Off 3 Off 4 Off 5 Off 6 Off 7 Orange flashing Off Off Off 8 4-2

59 Troubleshooting the 640 RPS/EPS Diagnosing with the LEDs LEDs on the 640 RPS/EPS LEDs on the 2920 Switch Diagnostic Tip Power Fault PS (1-3) 1A 1D, 2A, 2B, 3A, 3B XPS PS Fault Green on Orange flashing Orange flashing Orange flashing Orange flashing Green on Orange flashing 9 Additional LED Notes: The TMP LEDs on the front of the 640 RPS/EPS are used only to indicate when there is an over-temperature condition in the power bay for that LED. They are not used to help indicate any of the conditions listed in table 4-2. The power indicator LED on each PSU is used only to indicate whether the PSU is receiving AC power. It is not used to help indicate any of the conditions listed in table 4-2. Diagnostic Tips: Tip Problem Solution 1 The 2920 Switch is not connected to the 640 or the 640 port to which the switch is connected is disabled. 2 The switch PSU failed and the 640 PSU is now providing power. Try the following procedures: Check the EPS/RPS cable between the switch and the 640 RPS/EPS to make sure that it is securely connected at both ends. Check the switch configuration to confirm that the 640 RPS/EPS port to which the switch is connected is not disabled. See the PoE/PoE+ Operation chapter of the Management and Configuration Guide (for software version WB or later) for the 2920 Switches for the CLI commands to perform that check. Go to support/manuals; in the product search box, enter 2920 ; in the list that is displayed, click on HP 2920 Switch Series ; a web page is displayed with a list of the available manuals. Try the following procedures: Make sure that the failed PSU is connected securely to an active AC source. Try removing the PSU from the switch and reinstalling it. If neither of these solutions work, then the PSU is faulty and must be replaced. Troubleshooting the 640 RPS/EPS 4-3

60 Troubleshooting the 640 RPS/EPS Diagnosing with the LEDs Tip Problem Solution 3 The switch is connected to the 640 RPS/EPS but the switch and the 640 are not communicating so the switch cannot receive power from the 640. There are three possible conditions that result in this LED display: 1. There is a system type mismatch between the 640 RPS/EPS zone and the switch. One of them has a PoE PSU (54V, 1050W or 575W) and the other one has a non-poe PSU (12V, 165W PSU). 2. Another switch in the same 640 zone to which this switch is connected has experienced a PSU failure. The 640 is providing backup power to that switch and this switch no longer has the 640 as a backup power source. 3. The switch PSU has been replaced, but Auto Recovery is not enabled for the switch that is connected to the 640 RPS/EPS port that is exhibiting the problem. Or, the 640 port has been disabled via CLI command. 4 The 640 RPS/EPS PSU failed and only one PSU was installed in the 640 RPS/EPS, so the 640 RPS/EPS is powered off. 1. Make sure that PoE switches are connected to PoE zones in 640 RPS/EPS, and non-poe switches are connected to non-poe zones. Note: If the mismatch is due to an incorrect PSU installed in the 640 RPS/EPS, then before disconnecting AC from that PSU, make sure no other 2920s are drawing power from the same zone. If there are other 2920s connected to this zone, and the mismatch is with only one of the switches, do not disconnect the AC from that PSU. You should instead disconnect the mismatched 2920 from the 640 RPS/ EPS and move it to another zone with a matching PSU. This approach will ensure the other 2920s connected to the original zone are not affected. 2. Follow the procedures described for Diagnostic Tip 2 for the switch that has the failed PSU. 3. By default, the 2920 Switches are configured with the auto recovery feature enabled. If this feature is disabled, via the switch CLI, then if a switch PSU must be replaced, and the switch is then powered up and reconnected to the 640, power flow from the 640 will not be automatically enabled. You must first execute the external-power-supply enable command from the switch s CLI. To re-enable auto recovery, execute the external-power-supply auto-recovery enable command from the switch s CLI. For more information on the 2920 Switch CLI commands related to operation with the 640 RPS/EPS, see the PoE chapter in the Management and Configuration Guide (for software version WB or later) for the 2920 Switches. Go to support/manuals; in the product search box, enter 2920 ; in the list that is displayed, click on HP 2920 Switch Series ; a web page is displayed with a list of the available manuals. This is the normal operation of the 640 RPS/EPS when only one PSU is installed in it. When that PSU fails, the 640 RPS/EPS stops operating until the PSU is replaced. Replace the failed PSU in the 640 RPS/EPS. Troubleshooting the 640 RPS/EPS 5 There are two possible conditions that could cause this LED display: 1. A 640 RPS/EPS PSU has failed, indicated by which PSn LED is flashing orange. 2. An over-current condition has occurred that has caused the 640 to disable its connection to the switch. 1. Replace the failed PSU in the 640 RPS/EPS. 2. Resolve the over-current condition. The possible causes are: a. An AC power source transient spike. b. A short circuit in the EPS/RPS cable. Try a different EPS/RPS cable. If the new cable works, then replace the faulty cable. If the new cable does not work, go to the next possible cause of the problem. c. A short circuit in the switch or 640 RPS/EPS zone. Try connecting the 640 RPS/EPS zone to a different switch, or connecting the switch to a different zone. 4-4

61 Troubleshooting the 640 RPS/EPS Diagnosing with the LEDs Tip Problem Solution 6 There are two possible conditions that could cause this LED display: 1. A 640 RPS/EPS PSU is not correctly connected to an active AC power source. 2. The PSU has failed. For both of these conditions, a second PSU must be installed in one of the other zones and is keeping the 640 RPS/EPS powered up. 1. Make sure that the PSU is correctly connected to an active AC power source. 2. If the PSU is correctly connected to AC, then that PSU has failed. Replace the failed PSU in the 640 RPS/EPS. 7 There are four possible conditions that could cause this LED display: 1. The power (Watts) of the PSU in the switch is higher than the power of the PSU in the 640 RPS/ EPS zone, so no power is being provided to the 640 RPS/EPS ports in that zone. 2. You have replaced a failed 640 PSU and the 640 RPS/EPS is again providing power, but the connected switch has auto recovery disabled. If the XPS LED on the connected switch is Off, then the 640 RPS/EPS was not providing power to that switch prior to the 640 PSU failure and replacement. If the XPS LED on the connected switch is flashing Orange, then the 640 RPS/EPS was providing power to the that switch prior to the 640 PSU failure and recovery. 3. A change in 640 PSU port status has been executed (from enable to disable). 4. A change in distribution mapping has occurred. The configuration of the switch connected to the 640 RPS/EPS port, for which the port LED is off, does not include the port in its distribution map. 1. Make sure that the PoE power supplies in the 640 RPS/EPS zone and connected switch comply with the operational rules. The power of the PSU in the 640 zone must be larger than or equal to the power of the PSU in the connected switch. You cannot have a 575W PSU in the 640 and a 1050W PSU in the connected switch. 2. By default, the 2920 Switches are configured with the auto recovery feature enabled. If this feature is disabled, via the switch CLI, then if a 640 RPS/EPS PSU must be replaced, and the 640 RPS/ EPS zone is then powered up and reconnected to the switch, power flow from the 640 will not be automatically enabled. You must first execute the external-power-supply enable command from the switch s CLI. To re-enable auto recovery, execute the external-power-supply auto-recovery enable command from the switch s CLI. 3. The 640 RPS/EPS port has been disabled because the externalpower-supply disable command was executed from a connected switch. To correct the problem, issue the external-power-supply enable command from the switch. 4. On the switch connected to the port in question, execute the external-power-supply power-share command that includes the port ID in the XPS port list. For more information on the 2920 Switch CLI commands related to operation with the 640 RPS/EPS, see the PoE/PoE+ Operation chapter in the Management and Configuration Guide (for software version WB or later) for the 2920 Switches. Go to support/manuals; in the product search box, enter 2920 ; in the list that is displayed, click on HP 2920 Switch Series ; a web page is displayed with a list of the available manuals. Troubleshooting the 640 RPS/EPS 4-5

62 Troubleshooting the 640 RPS/EPS Diagnosing with the LEDs Tip Problem Solution 8 The 640 RPS/EPS has detected an over-current condition in the connected switch or 1-meter EPS/ RPS cable (a transient power spike has occurred in the AC supply, or a short circuit has occurred in the switch or EPS/RPS cable), so the 640 RPS/EPS has disabled its connection to that switch and the switch is powered off. 9 There are two possible conditions that could cause this LED display: 1. The 640 RPS/EPS PSU has experienced an over-current condition in the zone identified by the PSn LED that is flashing orange. 2. The 640 RPS/EPS port has been damaged. Resolve the over-current condition by trying these steps: 1. Connect a know good EPS/RPS cable to the port that is indicating the error. If replacing the cable resolves the problem, then the original cable is faulty and must be replaced. 2. If replacing the cable does not resolve the problem, try connecting a known good 2920 Switch to the affected 640 RPS/EPS port. You may have to re-enable the port using the external-power-supply enable CLI command from the connected switch. If replacing the switch resolves the problem then the original switch is faulty and must be replaced. 3. If replacing the cable and the switch does not resolve the problem and the 640 RPS/EPS port shuts down again, then that particular 640 port is faulty and the 640 RPS/EPS must be replaced, or you could use a different port, if available. 1. Resolve the over-current condition by trying these procedures: a. Replace the PSU in the affected zone with a known good PSU. If the power from the 640 RPS/EPS is restored to the affected zone, then the original PSU is faulty and must be replaced. b. If replacing the PSU does not resolve the problem, then the indicated port is faulty and the entire zone for that port can no longer be used. The 640 RPS/EPS must be replaced. For a temporary fix, you could use a port in a different zone, if available. 2. Disconnect the switch from the port. If the LED pattern persists, then the indicated port is faulty and the entire zone for that port can no longer be used. The 640 RPS/EPS must be replaced. For a temporary fix, you could use a port in a different zone, if available. Troubleshooting the 640 RPS/EPS 4-6

63 Troubleshooting the 640 RPS/EPS Diagnostic Tests Diagnostic Tests Testing the Unit by Resetting It If you believe the 640 RPS/EPS is not operating correctly, you can reset the unit to test its circuitry and operating code. To reset a unit, unplug and plug in the power cord (power-cycling). Cautions To fully power off the 640 RPS/EPS, you must disconnect all power cords to all installed PSUs. Use caution when power cycling the unit as this may affect devices receiving operating power and PoE power from the unit. Power-cycling the 640 RPS/EPS causes the unit to perform its power-on self test, which normally resolves any temporary operational problems. Checking the Unit s LEDs The self test passes if the Fault LED on the front of the 640 RPS/EPS goes off after approximately 8 seconds. If this LED stays on longer than 15 seconds or begins flashing, there may be a problem with the unit. See Diagnosing with the LEDs on page 4-2 for information on interpreting the LED patterns. Testing Cabling EPS/RPS cables that fail to provide a link or provide an unreliable link between the 640 RPS/EPS and the connected switch may be faulty. To verify your cable, try using it to connect to a switch that is known to operate correctly or try using a different 640 RPS/EPS port. If the problem persists, replace the cable. Troubleshooting the 640 RPS/EPS 4-7

64 Troubleshooting the 640 RPS/EPS HP Customer Support Services HP Customer Support Services If you are still having trouble with your 640 RPS/EPS, Hewlett-Packard offers support 24 hours a day, seven days a week through a number of automated electronic services. See the Customer Support/Warranty booklet that came with your 640 RPS/EPS for information on how to use these services to get technical support. The HP Networking Support Web site, support also provides up-to-date support information. Additionally, your HP-authorized network reseller can provide you with assistance, both with services they offer and with services offered by HP. Troubleshooting the 640 RPS/EPS 4-8

65 A Product Specifications Physical 640 RPS/EPS Product Specifications Width: Depth: Height: Weight: PSU Weights: HP X W (J9739A) HP X W (J9738A) HP X W (J9737A) 44.2 cm (17.4 in) 32.3 cm (12.7 in) 4.4 cm (1.73 in) 4.5 kg (9.9 lbs) with no PSUs installed 0.79 kg (1.74 lb) 0.88 kg (1.94 lb) 1.01 kg (2.23 lb) Power Supplies available for the HP 640 RPS/EPS: Electrical: AC voltage: Maximum current: Frequency range: Electrical HP X W Power Supply (J9739A) VAC A 2 50/60 Hz HP X W Power Supply (J9738A) V A 2 50/60 Hz HP X W Power Supply (J9737A) V A 2 50/60 Hz The power supplies automatically adjust to any voltage between VAC and either 50 or 60 Hz. 1 Not suitable for operation at 100 VAC locations in Japan. 2 These values represent the maximum current that these power supplies could draw. Typical values would usually be less. A-1

66 Product Specifications Environmental Product Specifications Power Supplies available for the HP 640 RPS/EPS: Environmental: Operating Temperature: Relative humidity: Non-Operating Temperature: Non-Operating Relative humidity: Maximum Operating Altitude: Non-Operating Altitude: HP X W Power Supply (J9739A) HP X W Power Supply (J9738A) 0 C to 55 C (32 F to 131 F) 15% to 95% at 40 C (104 F) (non-condensing) -40 C to 70 C (-40 F to 158 F) 15% to 90% at 65 C (149 F) (non-condensing) 3.0 km (10,000 ft) 4.6 km (15,000 ft) HP X W Power Supply (J9737A) Acoustic Max sound level with three PSUs and max output power: Geraeuschemission LwA=53.1 db am fiktiven Arbeitsplatz nach DIN T.19 Noise Emission LwA=53.1 db at virtual workspace according to DIN T.19 Cable Length The EPS/RPS cable (J9806A) is 1.0 meter (3.28 feet) in length. The cable must be purchased separately from the 640 RPS/EPS. Safety Complies with: GOST R MEK60950; EN62479:2010; UL nd Edition; CSA C22.2 No nd Edition; EN :2006+A11:2009+A1:2010+A12:2011; IEC :2005, Amd 1: 2009 A-2

67 Product Specifications EMC Compliance (Class A) Complies with: FCC Part ICES-003 (Canada) VCCI CISPR-22 Immunity Product Specifications Generic EN55024:2010 ESD IEC :2008 Radiated IEC :2010 EFT/Burst IEC :2012 Surge IEC :2005 Conducted IEC :2008 Power frequency IEC :2009 magnetic field Voltage dips IEC :2004 and interruptions A-3

68 Product Specifications Product Specifications A-4

69 B Safety and Regulatory Statements Safety Information! Documentation reference symbol. If the product is marked with this symbol, refer to the product documentation to get more information about the product. WARNING Caution A WARNING in the manual denotes a hazard that can cause injury or death. A Caution in the manual denotes a hazard that can damage equipment. Do not proceed beyond a WARNING or Caution notice until you have understood the hazardous conditions and have taken appropriate steps. Safety and Regulatory Statements Grounding This product is a safety class I compliant product and has a protective earthing terminal. There must be an uninterruptible safety earth ground from the main power source to the product's power cord or supplied power cord set. Whenever it is likely that the protection has been impaired, disconnect the power cord until the ground has been restored. For LAN cable grounding: If your LAN covers an area served by more than one power distribution system, be sure their safety grounds are securely interconnected. LAN cables may occasionally be subject to hazardous transient voltages (such as lightning or disturbances in the electrical utilities power grid). Handle exposed metal components of the network with caution. Servicing There are no user-serviceable parts inside this product. Any servicing, adjustment, maintenance, or repair must be performed only by service-trained personnel. This product does not have a power switch; it is powered on when the power cord is plugged in. B-1

70 Safety and Regulatory Statements Informations concernant la sécurité Informations concernant la sécurité! WARNING Caution Symbole de référence à la documentation. Si le produit est marqué de ce symbole, reportez-vous à la documentation du produit afin d'obtenir des informations plus détaillées. Dans la documentation, un WARNING indique un danger susceptible d'entraîner des dommages corporels ou la mort. Un texte de mise en garde intitulé Caution indique un danger susceptible de causer des dommages à l'équipement. Safety and Regulatory Statements Ne continuez pas au-delà d'une rubrique WARNING ou Caution avant d'avoir bien compris les conditions présentant un danger et pris les mesures appropriées. Cet appareil est un produit de classe I et possède une borne de mise à la terre. La source d'alimentation principale doit être munie d'une prise de terre de sécurité installée aux bornes du câblage d'entrée, sur le cordon d'alimentation ou le cordon de raccordement fourni avec le produit. Lorsque cette protection semble avoir été endommagée, débrancher le cordon d'alimentation jusqu'à ce que la mise à la terre ait été réparée. Mise à la terre du câble de réseau local: si votre réseau local s'étend sur une zone desservie par plus d'un système de distribution de puissance, assurez-vous que les prises de terre de sécurité soient convenablement interconnectées. Les câbles de réseaux locaux peuvent occasionnellement être soumis à des surtensions transitoires dangereuses (telles que la foudre ou des perturbations dans le réseau d'alimentation public). Manipulez les composants métalliques du réseau avec précautions. Aucune pièce contenue à l'intérieur de ce produit ne peut être réparée par l'utilisateur. Tout dépannage, réglage, entretien ou réparation devra être confié exclusivement à un personnel qualifié. Cet appareil ne comporte pas de commutateur principal ; la mise sous tension est effectuée par branchement du cordon d'alimentation. B-2

71 Safety and Regulatory Statements Hinweise zur Sicherheit Hinweise zur Sicherheit! WARNING Caution Symbol für Dokumentationsverweis. Wenn das Produkt mit diesem Symbol markiert ist, schlagen Sie bitte in der Produktdokumentation nach, um mehr Informationen über das Produkt zu erhalten. Eine WARNING in der Dokumentation symbolisiert eine Gefahr, die Verletzungen oder sogar Todesfälle verursachen kann. Caution in der Dokumentation symbolisiert eine Gefahr, die dis Gerät beschädigen kann. Fahren Sie nach dem Hinweis WARNING oder Caution erst fort, nachdem Sie den Gefahrenzustand verstanden und die entsprechenden Maßnahmen ergriffen haben. Dies ist ein Gerät der Sicherheitsklasse I und verfügt über einen schützenden Erdungsterminal. Der Betrieb des Geräts erfordert eine ununterbrochene Sicherheitserdung von der Hauptstromquelle zu den Geräteingabeterminals, den Netzkabeln oder dem mit Strom belieferten Netzkabelsatz voraus. Sobald Grund zur Annahme besteht, daß der Schutz beeinträchtigt worden ist, das Netzkabel aus der Wandsteckdose herausziehen, bis die Erdung wiederhergestellt ist. Safety and Regulatory Statements Für LAN-Kabelerdung: Wenn Ihr LAN ein Gebiet umfaßt, das von mehr als einem Stromverteilungssystem beliefert wird, müssen Sie sich vergewissern, daß die Sicherheitserdungen fest untereinander verbunden sind. LAN-Kabel können gelegentlich gefährlichen Übergangsspannungen ausgesetzt werden (beispielsweise durch Blitz oder Störungen in dem Starkstromnetz des Elektrizitätswerks). Bei der Handhabung exponierter Metallbestandteile des Netzwerkes Vorsicht walten lassen. Dieses Gerät enthält innen keine durch den Benutzer zu wartenden Teile. Wartungs-, Anpassungs-, Instandhaltungs- oder Reparaturarbeiten dürfen nur von geschultem Bedienungspersonal durchgeführt werden. Dieses Gerät hat keinen Netzschalter; es wird beim Anschließen des Netzkabels eingeschaltet. B-3

72 Safety and Regulatory Statements Considerazioni sulla sicurezza Considerazioni sulla sicurezza! WARNING Caution Simbolo di riferimento alla documentazione. Se il prodotto è contrassegnato da questo simbolo, fare riferimento alla documentazione sul prodotto per ulteriori informazioni su di esso. La dicitura WARNING denota un pericolo che può causare lesioni o morte. La dicitura Caution denota un pericolo che può danneggiare le attrezzature. Safety and Regulatory Statements Non procedere oltre un avviso di WARNING o di Caution prima di aver compreso le condizioni di rischio e aver provveduto alle misure del caso. Questo prodotto è omologato nella classe di sicurezza I ed ha un terminale protettivo di collegamento a terra. Dev'essere installato un collegamento a terra di sicurezza, non interrompibile che vada dalla fonte d'alimentazione principale ai terminali d'entrata, al cavo d'alimentazione oppure al set cavo d'alimentazione fornito con il prodotto. Ogniqualvolta vi sia probabilità di danneggiamento della protezione, disinserite il cavo d'alimentazione fino a quando il collegaento a terra non sia stato ripristinato. Per la messa a terra dei cavi LAN: se la vostra LAN copre un'area servita da più di un sistema di distribuzione elettrica, accertatevi che i collegamenti a terra di sicurezza siano ben collegati fra loro; i cavi LAN possono occasionalmente andare soggetti a pericolose tensioni transitorie (ad esempio, provocate da lampi o disturbi nella griglia d'alimentazione della società elettrica); siate cauti nel toccare parti esposte in metallo della rete. Nessun componente di questo prodotto può essere riparato dall'utente. Qualsiasi lavoro di riparazione, messa a punto, manutenzione o assistenza va effettuato esclusivamente da personale specializzato. Questo apparato non possiede un commutatore principale; si mette scotto tensione all'inserirsi il cavo d'alimentazione. B-4

73 Safety and Regulatory Statements Consideraciones sobre seguridad Consideraciones sobre seguridad! WARNING Caution Símbolo de referencia a la documentación. Si el producto va marcado con este símbolo, consultar la documentación del producto a fin de obtener mayor información sobre el producto. Una WARNING en la documentación señala un riesgo que podría resultar en lesiones o la muerte. Una Caution en la documentación señala un riesgo que podría resultar en averías al equipo. No proseguir después de un símbolo de WARNING o Caution hasta no haber entendido las condiciones peligrosas y haber tomado las medidas apropiadas. Este aparato se enmarca dentro de la clase I de seguridad y se encuentra protegido por una borna de puesta a tierra. Es preciso que exista una puesta a tierra continua desde la toma de alimentación eléctrica hasta las bornas de los cables de entrada del aparato, el cable de alimentación o el juego de cable de alimentación suministrado. Si existe la probabilidad de que la protección a tierra haya sufrido desperfectos, desenchufar el cable de alimentación hasta haberse subsanado el problema. Safety and Regulatory Statements Puesta a tierra del cable de la red local (LAN): Si la LAN abarca un área cuyo suministro eléctrico proviene de más de una red de distribución de electricidad, cerciorarse de que las puestas a tierra estén conectadas entre sí de modo seguro. Es posible que los cables de la LAN se vean sometidos de vez en cuando a voltajes momentáneos que entrañen peligro (rayos o alteraciones en la red de energía eléctrica). Manejar con precaución los componentes de metal de la LAN que estén al descubierto. Este aparato no contiene pieza alguna susceptible de reparación por parte del usuario. Todas las reparaciones, ajustes o servicio de mantenimiento debe realizarlos solamente el técnico. Este producto no tiene interruptor de potencia; se activa cuando se enchufa el cable de alimentación. B-5

74 Safety and Regulatory Statements Safety Information (Japan) Safety Information (Japan) Safety and Regulatory Statements Japan Power Cord Warning B-6

75 Safety and Regulatory Statements Safety Information (China) Safety Information (China) Safety and Regulatory Statements B-7

76 Safety and Regulatory Statements EMC Regulatory Statements EMC Regulatory Statements U.S.A. FCC Class A Safety and Regulatory Statements This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause interference to radio communications. Operation of this equipment in a residential area may cause interference in which case the user will be required to correct the interference at his own expense. Canada This product complies with Class A Canadian EMC requirements. Australia/New Zealand This product complies with Australia/New Zealand EMC Class A requirements. Japan VCCI Class A B-8

77 Safety and Regulatory Statements EMC Regulatory Statements Korea Taiwan Safety and Regulatory Statements Russia / CIS Regulatory Compliance: B-9