HDSL Doubler. Installation Instructions. Description

Transcription

1 roadccess HDSL Doubler - Installation Instructions r o a d c c e s s Installation Instructions HDSL Doubler Description The HDSL doubler is used to extend the distance of HDSL links between the CU and RU. The doubler operates in conjunction with HDSL series cards in roadccess Ver 40, roadccess Ver 30, DCS-20E and DCS-20 systems, and with HDS series cards in Lightccess systems. The HDSL Doubler consists of the HDSL-ENC2 weatherproof enclosure containing one L-DL2 doubler card. Two cables for connecting the doubler to the HDSL links protrude from the enclosure base, as shown in Figure 1. Figure 1. HDSL Doubler Enclosure The HDSL-DL2 card incorporates HDSL transceivers to establish full-duplex data links between the CU and RU. The card receives HDSL data streams from each side and regenerates the data stream simultaneously on both sides, also adding the overhead bits to the stream going towards the CU HDSL card to report its status. dditional data concerning the status of the HDSL lines and the HDSL-DL2 is provided to the management software supplied with your system. See Table 1 for more information. P/N Rev January 2004 Page a.doc 27/01/ :33

2 Compatibility Compatibility Table 1 provides the hardware and software compatibility matrix for the following products: Table 1. Hardware and Software Compatibility Card Installable In System Software MU/LCT* Version Version roadccess Ver x 1.0x (MU) 2.0x 2.0x (MU) 2.5x 2.5x (MU) 3.0x or higher 3.0x or higher (LCT) roadccess Ver or higher 6.00 or higher (MU) DCS-20E ll ll DCS or higher 4.19 or higher Lightccess 4.10 or higher 5.0 or higher MU Management Unit; LCT Local Craft Terminal The cards required in the CU and RU for each configuration are listed in Table 2. The doubler may be used in the following configurations: one doubler per link two doublers per link Table 2. Cards Required for Doubler Configurations Config-- road ccess DCS-20 OR DCS-20E Light ccess uration CU RU CU RU CU RU One doubler link Two doubler link HDSL2-F HDSL2, HDSL2-F, or HDSL4 HDSL-E1-F HDSL-E1 or HDSL-E1-F HDS2F HDS1, HDS2 or HDS2F HDSL2-F HDSL2-F HDSL-E1-F HDSL-E1-F HDS2F HDS2F Page 2 January 2004 P/N Rev

3 roadccess HDSL Doubler - Installation Instructions Card Controls and Indicators Card controls are described from top to bottom in Table 3. Table 3. Card Controls + V - Control ction Description Test points Enables technician to check incoming voltage level and polarity. RS 232 Port For factory use only. Card indicators are described from top to bottom in Table 4. Table 4. Card Indicators Indicator COLOR STTU S Indication LPK Green LED ON loopback 1 or 2 toward CU is active OFF loopback 1 or 2 toward CU is inactive Yellow LED ON loopback 1 or 2 toward RU is active Flashing doubler is ready to accept loopback commands HDSL IN (Line pairs 1 and 2) HDSL OUT (Line pairs 1 and 2) Mounting Options OFF Green LED ON loopback 1 or 2 toward RU is inactive HDSL frame synchronized between doubler and CU HDSL card on the indicated loop Flashing attempting synchronization with CU HDSL card Red LED Flashing HDSL CRC error Yellow LED ON margin alarm at this HDSL port Green LED ON HDSL frame synchronized between doubler and RU HDSL card on the indicated loop Flashing attempting synchronization with RU HDSL card Red LED Flashing HDSL CRC error Yellow LED Flashing margin alarm at this HDSL port Use the mounting kit supplied with the doubler to mount the doubler using one of the following methods: wall mounting (see Figure 2) floor mounting (see Figure 3) P/N Rev January 2004 Page 3

4 Doubler Installation in Enclosure Figure 2. Wall Mounting Figure 3. Floor Mounting Doubler Installation in Enclosure The HDSL-DL2 is inserted in the forward slot of the HDSL-ENC2, as shown in Figure 4. Page 4 January 2004 P/N Rev

5 roadccess HDSL Doubler - Installation Instructions CRD LOCTION Figure 4. Doubler with Enclosure Cover Removed Figure 5 shows the locations for each of the major components. Figure 5. Major Doubler Components P/N Rev January 2004 Page 5

6 Cable Connections Installation Procedure Caution: Modules can be damaged by electrostatic discharge (ESD). efore handling any modules connect your wrist to an equipment ground using an approved anti-static wrist strap. Ensure that all uninstalled modules are stored in anti-static packing material. When working with modules, always place the module on an electrically grounded approved anti-static mat. 1. Ensure card is inserted in the forward slot and secured to card mounting bracket. 2. Ensure that the ground cable in the enclosure is securely connected to the card mounting bracket on one end, and the ground bar on the other end. 3. Connect the ground bar protruding from the base of the housing to ground, in accordance with local safety regulations. Note: For installation instructions of the HDSL series cards please refer to the installation instructions supplied with the Service Manual. Cable Connections Warning: High voltages are present on cables with feeding voltages. Warning: Ensure the doubler is grounded. Two open end cables lead from the doubler enclosure base: one for input and the other for output. The cables are prewired to the distribution block located in the doubler housing, as shown in Figure lue Orange lue Orange LOOP 1 INPUT CLE LOOP 2 LOOP 1 OUTPUT CLE LOOP 2 Figure 6. Doubler Cables to Doubler Distribution lock Connections Page 6 January 2004 P/N Rev

7 roadccess HDSL Doubler - Installation Instructions Note: The other wires connected to the distribution block are not in use. The open ends of the doubler cables connect to the digital link cables that interface with HDSL series cards in the various systems, as listed in Table 5 to Table 9. Schematic diagrams for one and two doubler configurations are shown in Figure 7 and Figure 8. Table 5 details the HDSL doubler open cable connections to the roadccess Ver 40 system. Table 5. Doubler to roadccess Ver 40 Connections Link No. Loop Pair Open Cable Wire Color Distribution lock Designation 1 2 WH Rx1- L Rx1+ 1 WH Tx1- OR Tx WH Rx2- GR Rx2+ 1 WH Tx2- R Tx WH Rx3- GY Rx3+ 1 WH Tx3- WH/L Tx WH Rx4- L/OR Rx4+ 1 WH Tx4- L/GR Tx4+ WH=, YE=Yellow, L=lue, OR=Orange, GR=Green, R=rown, GY=Gray P/N Rev January 2004 Page 7

8 Cable Connections Table 6 details the HDSL doubler open cable connections to the roadccess Ver 30 system. Table 6. Doubler to roadccess Ver 30 Connections Link No. Loop Pair Open Cable Wire Color Distribution lock Designation 1 2 YE Rx1- OR/GR Rx1+ 1 YE Tx1- OR/WH Tx YE Rx2- L/GY Rx2+ 1 YE Tx2- L/R Tx YE Rx3- L/GR Rx3+ 1 YE Tx3- L/OR Tx YE Rx4- L/WH Rx4+ 1 YE Tx4- GY Tx4+ WH=, YE=Yellow, L=lue, OR=Orange, GR=Green, R=rown, GY=Gray Table 7 details the HDSL doubler open cable connections to the DCS-20E system. Table 7. Doubler to DCS-20E Connections Link No. Loop Pair Open Cable Wire Color Distribution lock Designation 1 2 GR/L Rx1- WH Rx1+ 1 R/L Tx1- WH Tx GR/L Rx2- WH Rx2+ 1 OR/L Tx2- WH Tx WH/L Rx3- WH Rx3+ 1 GR Tx3- WH Tx R Rx4- WH Rx4+ 1 GR Tx4- WH Tx4+ WH=, YE=Yellow, L=lue, OR=Orange, GR=Green, R=rown, GY=Gray Page 8 January 2004 P/N Rev

9 roadccess HDSL Doubler - Installation Instructions Table 8 details the HDSL doubler open cable connections to the DCS-20 system. Table 8. Doubler to DCS-20 Connections Link No. Loop Pair Open Cable Wire Color Distribution lock Designation 1 WH Tx+ L Tx- 2 WH Rx+ OR Rx- 1 WH Tx+ GR Tx- 2 WH Rx+ R Rx- WH=, YE=Yellow, L=lue, OR=Orange, GR=Green, R=rown, GY=Gray Table 9 details the HDSL doubler open cable connections to the Lightccess system. Table 9. Doubler to Lightccess Connections Link No. Loop Pair Open Cable Wire Color 1 1 WH OR 2 WH L 2 1 WH R 2 WH GR WH=, YE=Yellow, L=lue, OR=Orange, GR=Green, R=rown, GY=Gray P/N Rev January 2004 Page 9

10 roadccess HDSL Doubler - Installation Instructions Input Cable Distribution lock Output Cable Connects to Digital Link Cables from CU (see Tables 5 to 9) Loop1 Loop2 lue Orange (1) (2) Loop 1 Loop 2 (5) (6) lue Orange Loop1 Loop2 Connects to Digital Link Cables from RU (see Tables 5 to 9) Figure 7. One Doubler Configuration Note: Numbers in parentheses refer to doubler distribution block number. Page 10 January 2004 P/N Rev

11 roadccess HDSL Doubler - Installation Instructions 1 2 OUTPUT CLE INPUT CLE Connects to Digital Link Cables from CU (see Tables 5 to 9) Loop1 Loop2 lue Orange (1) (2) Distribution lock Distribution lock Loop 1 Loop 2 (5) (6) lue Orange lue Orange (1) (2) Loop 1 Loop 2 (5) (6) lue Orange Loop1 Loop2 Connects to Digital Link Cables from RU (see Tables 5 to 9) OUTPUT CLE INPUT CLE Figure 8. Two Doubler Configuration Note: Numbers in parentheses refer to doubler distribution block number. P/N Rev January 2004 Page 11

12 roadccess HDSL Doubler - Installation Instructions rrestor Replacement In the event of a power surge, the doubler is protected by arrestors (see Figure 9). The surge arrestors have an external fuse indicator that shows if the arrestor has blown. In order to view the fuse indicator, the arrestor has to be removed from the magazine. rrestor specifications are listed in Table 10. Table Electrode Surge rrestor Specification Specification Parameters Tolerance (a-c, b-e) 230 VC ±20% Impulse discharge current (a+b-c) 10 k, 20 µs Nominal lternate Discharge 10, 50 Hz/sec Figure 9. HDSL Doubler rrestors To replace the arrestors proceed as follows: 1. Open the doubler enclosure. 2. Remove the arrestor magazine from the connection block. 3. Verify whether any fuse is blown. 4. Replace blown fuses if required, and reattach the arrestor magazine to the connection block. 5. Close the doubler housing. P/N Rev January 2004 Page 12