DTX 1200U Indoor 120W UHF-Band ISDB-T/TB Transmitter. Instruction Manual RESTRICTIONS ON USE, DUPLICATION OR DISCLOSURE OF PROPRIETARY INFORMATION

Transcription

1 DTX 1200U Indoor 120W UHF-Band ISDB-T/TB Transmitter Instruction Manual ISDBT-M01, Rev. 01B March 2012 RESTRICTIONS ON USE, DUPLICATION OR DISCLOSURE OF PROPRIETARY INFORMATION This document contains information proprietary to Unique Broadband Systems Ltd., to its affiliates or to a third party to which Unique Broadband Systems Ltd., may have a legal obligation to protect such information from unauthorized disclosure, use or duplication. Any disclosure, use or duplication of this document or any of the information herein for other than the specific purpose for which it was disclosed by Unique Broadband Systems Ltd., is expressly prohibited, except as Unique Broadband Systems Ltd., may otherwise agree in writing. Recipient by accepting this document agrees to the above stated conditional use of this document and this information disclosed herein. Copyright 2012, Unique Broadband Systems, Ltd. 400 Spinnaker Way, Vaughan, Ontario, Canada L4K 5Y9, Tel: (905) , Fax: (905) , Internet:

2 Contents UBS Ltd DTX 1200U Transmitter DTX 1200U 120W UHF-Band ISDB-T/TB Transmitter Instruction Manual ISDBT-M01, Rev. 01B Revision History Rev FPGA Version Application Version UPC SW Version 01B Instruction Manual Revision 01 Page ii

3 Contents UBS Ltd DTX 1200U Transmitter Table of Contents 1 INTRODUCTION MANUAL OVERVIEW PRODUCT SAFETY WARNING Safety Symbols Safety Notices Electrostatic Sensitive Devices Lithium Battery WARRANTY AND SERVICE INFORMATION LIABILITY PRODUCT DESCRIPTION PRODUCT OVERVIEW PRODUCT ARCHITECTURE DVB-S/S2 Reciever ISDB-T/TB Modulator GPS Reciever Transmitter System Controller High Power Amplifier (HPA) HPA Enhanced Features and Design Concepts HPA Controller Adaptive Pre-corrector Manual Digital Linear and Non-linear Pre-correctors Control Interfaces Remote Upgrades INSTALLATION UNPACKING AND INSPECTION ENVIRONMENTAL MOUNTING GROUNDING POWER SUPPLY Mains AC Power Connection Fuse Replacement INPUT AND OUTPUT CONNECTIONS GPS Antenna VSAT Antenna GPS Receiver Input DVB-S/S2 Receiver Input DVB-S/S2 Receiver Output DVB-ASI Input DVB-ASI Monitoring Output MHz Reference Output PPS Reference Output Instruction Manual Revision 01 Page iii

4 Contents UBS Ltd DTX 1200U Transmitter RF Output HPA RF Output Monitoring Port Modulator RF Output Monitoring Port USB Port Ethernet Port RS232 Serial Port RS232 Settings RS232 Alarm Relays RS485 Serial Port HPA RS485 Serial Port HPA Serial Port OPERATING INSTRUCTIONS INTRODUCTION INITIAL TURN-ON PROCEDURE CONTROL AND COMMUNICATION Control and Communication Interfaces Web GUI SNMP CLI Front Panel Interface Local Access Remote Access Network Parameters MODES OF OPERATION HPA Transmitter Operating Modes Broadcast Mode Standby Mode Manual Mode Modulator Modes MFN Mode Hierarchical Mode SFN Hierarchical Mode Test Modes PARTIAL RECEPTION MODULATION ASI INPUTS RF OUTPUT WINDOWING (WINDOW ENABLED) ADAPTIVE NON-LINEAR PRE-CORRECTOR MANUAL DIGITAL LINEAR AND NON-LINEAR PRE-CORRECTORS WEB GUI INTERFACE INTRODUCTION ACCESS AND NAVIGATION Login Main Status Page GUI Navigation and Structure Changing Parameters Instruction Manual Revision 01 Page iv

5 Contents UBS Ltd DTX 1200U Transmitter 5.3 STATUS MENU Global Status GPS Status Satellite Receiver Status HPA Status Adaptive Pre-corrector Status CONFIG MENU HPA Transmitter Modulator Mode Transmission Input Output Non-linear Pre-corrector Screen Linear Precorrector Adaptive Pre-corrector Manual HPA Control Site GPS Satellite Receiver ALARMS MENU Clear Logs Alarm Properties Alarm Status NMS USERS MENU SYSTEM PARAMETERS MENU Identification Access Control Network Parameters SNMP Parameters System Time Heartbeat Time System Reset User Configuration Download Config File(s) Upgrade and Files Upload List Uploaded Files CLI (COMMAND LINE INTERFACE) INTRODUCTION USING THE USB PORT TO ACCESS THE CLI USING THE ETHERNET PORT TO ACCESS THE CLI CLI LOGIN PROCEDURE CLI MENU SYSTEM Navigation Parameter Values Menu Tree Status Menu Config Menu Alarms Menu Instruction Manual Revision 01 Page v

6 Contents UBS Ltd DTX 1200U Transmitter NMS Users Menu System Parameters Sub-menu Display Alarms Firmware Upgrade FRONT PANEL INTERFACE INTRODUCTION STATUS INDICATORS Power Alarm Unlocked CONTROLS Navigation Entering Alphanumric Parameters Saving Characters TRANSMITTER BOOT-UP STATUS DISPLAYS SPECIFIC CONFIG MENU GENERAL CONFIG MENU DISPLAYS GENERAL CONFIG MENU TREE SNMP TRANSMITTER PARAMETERS ALARMS INTRODUCTION ALARM HANDLING Modulator Alarm Handling in MFN Mode Modulator Alarm Handling in SFN Mode HPA Alarm Handling MODULATOR ALARMS Informative Alarms Modulator Restarted Heartbeat DVB-S/S2 Receiver Alarms Satellite Comm Error Satellite Receiver Fault Satellite Unlocked Satellite Power Fault Satellite Overload GPS Alarms GPS Antenna Undercurrent GPS Antenna Overcurrent GPS Quality Low GPS Comm Error Modulator Board Alarms MHz Reference Loss PPS Reference Loss No Input Data Instruction Manual Revision 01 Page vi

7 Contents UBS Ltd DTX 1200U Transmitter IIP Packet Loss Data Input Too High Input Bit Rate Is Out Of Limit Up Converter Unlock Up Converter Communication Error Adaptive Pre-corrector Alarms AP RF Input Low AP RF Feedback Low AP No Correction AP HPA FB Out of Range HPA ALARMS HPA Comm. Fault HPA Shutdown Fault HPA Temperature Warning and Fault Alams HPA Temperature Warning HPA Temperature Fault HPA TX Inp. Pwr. Fault HPA TX Fwr. Pwr. Fault HPA TX Rfl. Pwr. Fault HPA PA Module Faults HPA PA Voltage Fault HPA PA Current Fault HPA Driver Voltage Fault HPA Pre-driver Voltage Fault TECHNICAL SPECIFICATIONS SIGNAL PROCESSING DVB-S/S2 RECEIVER INPUT DVB-S/S2 RECEIVER DEMODULATION AND DECODING DVB-S/S2 RECEIVER OUTPUT MODULATOR INPUTS MODULATOR RF OUTPUT PERFORMANCE MODULATOR OUTPUTS TRANSMITTER RF OUTPUT PERFORMANCE ADAPTIVE PRE-CORRECTION MANUAL DIGITAL PRE-CORRECTION INTERNAL GPS RECEIVER CONTROL INTERFACES POWER SUPPLY ENVIRONMENTAL MECHANICAL Instruction Manual Revision 01 Page vii

8 Contents UBS Ltd DTX 1200U Transmitter List of Tables Table 3-1 External Connections Table 3-2 RS232 Connector Pin-out Table 3-3 RS485 Connector Pin-out Table 3-4 HPA RS485 Connector Pin-out Table 3-5 HPA Serial Connector Pin-out Table 5-1 Web GUI Menu Structure Table 5-2 HPA Transmitter Parameters Table 5-3 Modulator Mode Parameters Table 5-4 Transmission Parameters (MFN Mode) Table 5-5 Transmission Parameters (SFN Hierarchical Mode) Table 5-6 Input Parameters Table 5-7 Output Parameters Table 5-8 Non-linear Pre-corrector Parameters Table 5-9 Linear Pre-corrector Parameters Table 5-10 Adaptive Pre-corrector Parameters Table 5-11 Manual HPA Control Parameters Table 5-12 Site Parameters Table 5-13 GPS Parameters Table 5-14 Satellite Receiver Parameters Table 5-15 Transmitter Alarms Table 5-16 Alarm Properties Table 5-17 NMS User Parameters Table 5-18 Identification Parameters Table 5-19 Access Control Parameters Table 5-20 Network Parameters Table 5-21 SNMP Parameters Table 5-22 System Time Parameters Table 5-23 Heartbeat Time Parameters Table 9-1 Transmitter Parameters Table 10-1 Alarm List Table 11-1 ISDB-T/TB Signal Processing Table 12-4 DVB-S/S2 Receiver Input Table 12-5 DVB-S/S2 Demodulation and Decoding Table 12-6 DVB-S/S2 Receiver Output Table 11-2 Modulator Inputs Table 11-5 Modulator RF Output Performance Table 11-3 Modulator Outputs Table 11-4 Transmitter RF Output Performance Table 11-6 Adaptive Pre-correction Parameters Table 11-7 Manual Pre-correction Parameters Table 11-8 Internal GPS Receiver Parameters Table 12-3 Control Interfaces Table Power Supply Table Environmental Table Mechanical Instruction Manual Revision 01 Page viii

9 Contents UBS Ltd DTX 1200U Transmitter List of Figures Figure W ISDB-T/TB Transmitter Figure 2-2 ISDB-T/TB Transmitter Block Diagram Figure 3-1 Transmitter Rear Panel Figure 3-2 GPS Antenna Connection Figure 5-1 Login Page Figure 5-2 Transmitter Global Status (MFN Mode) Figure 5-3 Transmitter Global Status (SFN Hierarchical Mode) Figure 5-4 Example of Submitting a Parameter Change Figure 5-5 Status Menu Selection Figure 5-6 GPS Status Figure 5-7 Satellite Receiver Status Figure 5-8 HPA Status Figure 5-9 Adaptive Pre-corrector Status Figure 5-10 Config Menu Selection Figure 5-11 HPA Transmitter Configuration Figure 5-12 Modulator Mode Configuration Figure 5-13 Transmission Configuration (MFN Mode) Figure 5-14 Transmission Parameters (Hierarchical Mode) Figure 5-15 Transmission Parameters (SFN Hierarchical Mode) Figure 5-16 Input Configuration Figure 5-17 Output Configuration Figure 5-18 Non-linear Pre-corrector Configuration Figure 5-19 Linear Pre-corrector Configuration Figure 5-20 Adaptive Pre-corrector Configuration Figure 5-21 Manual HPA Control Figure 5-22 Site Configuration Figure 5-23 GPS Configuration Figure 5-24 Satellite Receiver Configuration Figure 5-25 Alarms Menu Selection Figure 5-26 Clear Logs Screen Figure 5-27 Alarm Properties Configuration Figure 5-28 Alarm Status Page Figure 5-29 NMS User Properties Configuration Figure 5-30 System Parameters Menu Selection Figure 5-31 Identification Configuration Figure 5-32 Access Control Configuration Figure 5-33 Network Parameters Configuration Figure 5-34 SNMP Parameters Configuration Figure 5-35 System Time Configuration Figure 5-36 Heartbeat Time Configuration Figure 5-37 System Reset Figure 5-38 User Configuration Figure 5-39 Download Selection Figure 5-40 Download Pop-Up Figure 5-41 Software Upgrade Figure 5-42 Upgrade Begin Pop-Up Figure 5-43 Upgrade Complete Pop-Up Figure 5-44 List Uploaded Files Figure 6-1 Com Settings Figure 6-2 Starting the Telnet Session Figure 6-3 Telnet Login Prompt Figure 7-1 Transmitter Touch Screen LCD Figure 8-1 Parameter Menu Items Available via SNMP Instruction Manual Revision 01 Page ix

10 Introduction UBS Ltd DTX 1200U Transmitter 1 Introduction 1.1 Manual Overview This manual contains a description of the DTX 1200U, as well as installation, setup and operating instruction. 1.2 Product Safety For your protection, please read and observe all safety instructions carefully. Save these instructions for future reference. 1. Read Instructions All safety and operating instructions should be read before the product is operated. 2. Follow Instructions All operating and user instructions should be followed. 3. Retain Instructions The safety and operating instructions should be retained for future use. 4. Heed Warnings All warnings on the product and in the operating instructions should be adhered to. 5. Mounting Equipment and Accessories Do not place the product on an unstable cart, stand, bracket or table as the product could fall, causing serious damage. The product should be used only with a cart, stand, bracket or table that is recommended by UBS. 6. Ventilation To ensure reliable operation and to protect the product from overheating, the product should be positioned so that proper ventilation is not obstructed. The product should not be placed near or over radiators, stoves or other appliances that produce heat. 7. Power Sources The product should only be operated from the type of power source indicated on the unit or in this document. 8. Cleaning Unplug or otherwise disconnect all power from the product before cleaning. Do not use liquid cleaners or aerosol cleaners. Use only a damp cloth for cleaning. 9. Servicing The user should not attempt to service the product beyond those means described in the operating instructions. Refer all servicing to qualified service personnel. 10. Damage Requiring Service Unplug the product from its power source and refer to service personnel under the following conditions: a. When the power supply cord or plug is damaged. b. If liquid has been spilled or objects have fallen into the product. c. If the product does not operate normally, adjust only those controls that are covered by this document. Improper adjustment of any other controls may result in damage and will often require extensive work by a qualified technician to restore the product to its normal operation. d. When the product exhibits a distinct change in performance. Such a significant change indicates need of service. 11. Replacement Parts When replacement parts are required, ensure that parts are specified by UBS. Unauthorized substitutions could result in improper operation or other hazards and will invalidate the warranty. 12. Keep Away from Live Circuits Service personnel must at all times observe safety regulations. Do not replace components or make adjustments at all. All repairs are to be performed at UBS factory. Instruction Manual Revision 01 Page 1-1

11 Introduction UBS Ltd DTX 1200U Transmitter 1.3 Warning Specific warning and caution statements, where applicable, are found throughout this manual. Note that warning and caution statements and/or symbols are marked on the transmitter as well Safety Symbols Symbol Meaning Explanation Caution To prevent damage to the product, the user must refer to all operating instructions in the manual. Danger Dangerous voltages. Attention Presence of electrostatic discharges (ESD). Ground Protective ground terminal. AC Alternating Current Safety Notices WARNING! Denotes potential hazard, if not correctly performed or adhered to, could result in injury or loss of life. CAUTION! Denotes potential hazard, if not correctly performed or adhered to, could result in damage to the equipment. NOTES Provides supplementary information for the user. Instruction Manual Revision 01 Page 1-2

12 Introduction UBS Ltd DTX 1200U Transmitter Electrostatic Sensitive Devices This product contains ESD (Electrostatic Discharge) sensitive devices. Attention! When repairing, proper ESD equipment should be used to prevent damage to the product. Use an ESD wrist strap when handling ESD-sensitive devices Lithium Battery CAUTION! Danger of explosion if battery is incorrectly replaced. Replace only with the same or equivalent type, as recommended by the equipment manufacturer. Dispose of used batteries according to the manufacturer s instructions. Instruction Manual Revision 01 Page 1-3

13 Introduction UBS Ltd DTX 1200U Transmitter 1.4 Warranty and Service Information UBS standard warranty is one (1) year from the date of delivery, provided that the warranty labels have not been broken. Opening the product without the expressed, written consent of UBS will automatically void the warranty. UBS liability for a warranty failure applies only to the equipment provided by UBS and excludes all other remedies, including, without limitation, incidental consequential damages. UBS is not responsible for any lost data, revenue, or any other consequential damages associated with a warranty or non-warranty failure. In the event of a defect in/ or failure of the UBS product, the customer shall contact UBS regarding the warranty claim. UBS warrants to rework or repair the product at the UBS facility in Vaughan, Ontario once it has been properly returned by the customer. To process a warranty claim or to obtain technical support, please contact UBS Customer Service at either one of the following numbers: Telephone Number: Fax Number: Liability The statements, specifications and instructions in this publication are believed to be correct to the best knowledge of Unique Broadband Systems Ltd. and its employees at the time of printing this manual. Unique Broadband Systems Ltd. will reserve the right to make changes to the content in this publication that reflects changes in equipment specifications and design. No liability is assumed for statements, results, or lack thereof from the use of information in this publication and for any direct or consequential damages, personal loss or injury and that all statements made herein are strictly to be used or relied on at the user s risk. This document has been prepared for professional and properly trained personnel and the customer assumes all responsibility when using this document. UBS welcomes customer comments as part of the process of continual development and improvement of the documentation in the best way possible from the user s viewpoint. Please submit your comments to your UBS sales representative at the following address: Unique Broadband Systems Ltd. 400 Spinnaker Way Vaughan, Ontario, Canada L4K 5Y9 Tel: (905) Fax: (905) sales@uniquesys.com Website: Instruction Manual Revision 01 Page 1-4

14 Product Description UBS Ltd DTX 1200U Transmitter 2 Product Description 2.1 Product Overview Figure W ISDB-T/TB Transmitter The indoor 120 Watt ISDB-T/TB UHF-Band transmitter is fully compliant with ISDB-T/TB standards and is designed for an operating frequency range of 470 MHz to 860 MHz. The transmitter can be configured with an L-Band DVB- S/S2 input or an ISDB-T/TB multiplexed transport stream input. The compact design is a complete ISDB-T/TB transmitter system. Included in the 3RU chassis is a DVB-S/S2 Receiver, ISDB-T/TB Modulator, GPS Receiver, High Power Amplifier (HPA) and System Controller. The System Controller is responsible for transmitter operation, configuration, management and status reporting with support for a SNMP based Network Management System. Key highlights of the transmitter include: ISDB-T/TB compliant Operating frequency range of 470 MHz MHz High Performance 120W LDMOS Power Amplifier RF overdrive, high VSWR and over-temperature protection DVB-S/S2 Receiver ISDB-T/TB Modulator with internal GPS Receiver and System Controller SFN and MFN Support Adaptive Non-linear Pre-correction Manual Linear and Non-linear Digital Pre-correction Touch Screen LCD for rear time user interface Web interface for remote control and monitoring SNMP for network management of the Transmitter Compact, light weight chassis with forced air cooling system Instruction Manual Revision 01 Page 2-1

15 Product Description UBS Ltd DTX 1200U Transmitter 2.2 Product Architecture BNC-50 BNC-50 10MHz 1PPS GPS Receiver R F-75 GPS IN +12V USB I 2 C RF OUT SMA-50 10/100/ 1000 Ethernet RJ45 Universal Modulator R ASI OUT-B BNC-75 ASI OUT-A BNC-75 ASI IN-B BNC-75 ASI IN-A BNC V Rx. ASI OUT 2 BNC-75 Rx. ASI OUT 1 BNC V DVB-S/S2 Receiver Rx. ANT F-75 +5V Power Supply R +12 VDC Out LCD Controller/ Screen R 2x Fans HPA FB SMA-50 RFI (Filter) DC +12V UHF Predriver RMS RF Det 1 Peak RF Det RMS RF Det Latch Set Point DAC ADC Temp2 CPU Pre-driver Controller V +5V +12 VDC to Pre-driver LDO 60241R +12V +12V ADC CPU Dig I/ O DAC Temp2 HPA Controller Power Supply R Control PS Connection Board DC 50V, 30A UHF PA / UHF Driver dB 18dB Precoorector Feedback cable Fast Reflect reference actuation level I 2 C Cable RF_FWD/RFL Fast Reflect 50V Control DRV 50V Control HP Pallet AC Status PS DC Mon PS 17dB DC +50V HPA Temp1 SMA Monitor -53dB 50V Control HP Pallet 52dBm UHF Coupler dB -33dB -52dB -52dB Att 6dB Splitter SMA SMA Terminator 11069R SMA RF Power Detector / RF Power Detector / FWD Detector RS485 RFL Detector RS485 Switch Board V Control DRV Switch Board Figure 2-2 ISDB-T/TB Transmitter Block Diagram Instruction Manual Revision 01 Page 2-2

16 Product Description UBS Ltd DTX 1200U Transmitter DVB-S/S2 Reciever The Satellite receiver accepts a downconverted L-Band DVB-S/S2 signal from an LNB module and performs signal processing. The received signal is demodulated, the DVB-S/S2 transport layer is removed and data recovery is performed, providing a MPEG Transport Stream output. The DVB-S/S2 receiver supports Dual Band, Dual Polarization LNB s by allowing the user to manually configure the DVB-S/S2 receiver ISDB-T/TB Modulator The module performs ISDB-T/TB signal encoding, OFDM waveform generation and synchronization to provide Single Frequency Network (SFN) operation. The module performs the frequency conversion of the OFDM signal into the required RF channel frequency, to drive the High Power Amplifier (HPA). The Adaptive Non-linear Pre-corrector compensates for HPA non-linearities. Manual Digital Linear and Non-linear Pre-correctors provide compensation for the group delay introduced by the HPA output filter and the non-linear distortions produced by HPA. The ISDB-T/TB modulator converts an MPEG (ISDB-T/TB multiplexed) transport stream, made up of one or more TS inputs, to a COFDM modulated RF signal. A direct conversion process provides a single analog RF output from 470 MHz to 860 MHz, suitable for amplification in the High Power Amplifier (HPA). The modulator can support MFN, Hierarchical and SFN Hierarchical network modes as well as Partial Reception. Power Amplifier performance can be improved significantly by enabling the Adaptive or Manual Pre-correctors Adaptive Non-linear Pre-correction compensates for HPA non-linearities including AM/AM and AM/PM distortion and protects against IMD and spectral regrowth while maximizing EVM performance. Manual Digital Non-linear Pre-correction compensates for HPA non-linearity and is able to provide separate adjustment for low and high frequency shoulders. Manual Digital Linear Pre-correction compensates for group delay created by an output filter GPS Reciever The internal GPS receiver provides 10 MHz and 1PPS reference signals to the modulator board for SFN operation (transmitter synchronization) and has the capability to track 12 satellites. The user has the option to set the Max GPS Holdover time, updated the system clock from the GPS and set the time zone. Following a loss of signal lock (to the GPS satellite network), the Max GPS Holdover time is the maximum length of time the system will continue to operate in a free-running mode before an alarm is issued, leading to a possible transmitter shutdown condition. It is imperative for all transmitters in a SFN Hierarchical network to be synchronized to a GPS at all times. Instruction Manual Revision 01 Page 2-3

17 Product Description UBS Ltd DTX 1200U Transmitter Transmitter System Controller Provides all primary system control and management functionality. Manages all control interfaces of the transmitter. The modulator board serves as the main System Controller responsible for configuration and management of the entire transmitter and interfaces. The modulator board and HPA are linked by a RS-485 serial cable for control and monitoring - see Figure 2-2. The system controller supports transmitter operation, configuration, management and status reporting. System control includes power up, power down, RF control processes, control commands for status requests and operating parameters, etc. The transmitter identity (name, password, local IP address, SNMP, etc.) can be configured remotely or locally. Remote upgrade of the transmitter software is also supported High Power Amplifier (HPA) The module provides RF signal amplification up to the required 120 Watts output power level at the transmitter RF output. The output power level is maintained via an ALC loop. The output forward and reverse power levels are measured by the integrated output coupler and reported to the system controller. The HPA module is designed to operate as a final amplification stage for the terrestrial UHF-band transmitter. Employing highly efficient LDMOS technology, the HPA amplifies the modulated UHF-Band terrestrial signal to a power level of 120 Watts, while maintaining its linear characteristics. The HPA module includes an integrated AC/DC power supply, controller and two fans for forced air cooling. The HPA architecture is based on a solid state design operating in the Class A/AB linear mode over a frequency range from 470 MHz to 860 MHz. The amplifier is fully protected against input overdrive, overheating and output load VSWR conditions. The HPA incorporates an internal automatic self-levelling loop to maintain a constant output power level. The automatic level control (ALC) circuit will compensate for the input signal level variations and the gain variations caused by changes in temperature as well as for the gain changes due to devices aging. The HPA main driver-chain signal is fed into a single LDMOS power module. The power module output is fed into a coupler which includes RF detectors that measure forward and reflected power levels as well as a RF monitoring port. The HPA controller monitors the operation parameters of the HPA, provides protection against abnormal operation conditions and communicates with the main system controller via a RS-485 serial interface. Though highly linear, the HPA output shoulders are further enhanced by the pre-corrector circuit housed on the modulator board. Instruction Manual Revision 01 Page 2-4

18 Product Description UBS Ltd DTX 1200U Transmitter HPA Enhanced Features and Design Concepts The HPA utilizes several innovative features designed to enhance its performance and reliability of the amplifier. Enhanced heat sink design Thermally enhanced power transistors The HPA employs a heat sink design that permits more equal heat distribution across the heat sink, thus reducing the maximum operating temperature. Distribution of the main heat source elements within the HPA is optimized in order to utilize the maximum thermal efficiency of the heat sink, also resulting in lower operating temperatures. The HPA design incorporates the latest generation high power LDMOS transistors which employ a thermally enhanced package. The significant reduction in thermal resistance will allow these new generation power devices to operate with a lower junction temperature thus improving overall amplifier reliability HPA Controller The embedded HPA controller monitors all operating parameters and provides amplifier protection and control. It communicates with the main System Controller via a RS485 serial interface and reports the following parameter values and corresponding alarms: HPA Forward Power HPA Reflected Power HPA Input Power HPA Temperature HPA PA Voltage and Current HPA Diver Voltage HPA Pre-driver Voltage HPA Shutdown HPA Communication The following HPA control commands are set via the RS 485 serial interface: Power Supply ON/OFF DC Bias ON/OFF RF Output ON/OFF The HPA is a constant gain block which is individually calibrated in order to maintain its RF performance while operating in various conditions. The calibration is performed on the forward power sensor, reflected power sensor and input power sensor. A calibration table is stored in the HPA controller internal EEPROM. The HPA controller reports alarms to the system controller and maintains an internal alarm log. Each alarm entry in this log contains the alarm ID itself along with monitored parameters prior to an alarm. This alarm log is saved in an internal EEPROM. Instruction Manual Revision 01 Page 2-5

19 Product Description UBS Ltd DTX 1200U Transmitter Adaptive Pre-corrector The adaptive pre-corrector compensates for the HPA non-linearities, including AM/AM and AM/PM distorsion, spectral re-growth and error vector magnitude (EVM). The complex signal processing is done in the RF domain. This pre-corrector supports a fully adaptive operation: the feedback signal (HPA output) is compared to the modulator s RF output signal (HPA input) in order to optimize the correction, which will improve the shoulders of the RF output. The Pre-corrector function can be switched on and off from the Web GUI, CLI or front panel. Manual Digital Linear and Non-linear Pre-correctors The non-linear pre-corrector compensates for power amplifier non-linearity and is able to provide a separate adjustment for the low and high frequency shoulders of the wide channel spectrum. Additionally, the non-linear pre-corrector may serve as peak limiter in order to control peak to average power ratios. The Linear pre-corrector compensates for the group delay created by an output filter. The Pre-corrector function can be switched on and off from the Web GUI, CLI or front panel. Control Interfaces The physical interface for system management is the Ethernet port which supports Web GUI, SNMP v3 (secure SNMP) and Telnet. A touch screen LCD provides a real time user interface and the USB port can be used to access the Command Line Interface (CLI). The Web GUI is an intuitive interface allowing the user to access the current transmitter status and configure the operational parameters. The Web interface uses a simple hierarchical menu structure which provides access to all transmitter parameters. The touch screen LCD and CLI offer the same hierarchical menu structure which provides access to all transmitter parameters. The transmitter SNMP interface provides the means for remote management of the transmitter and to accept alarm traps. The notification options can be configured on a per-alarm basis. The user may decide to mask certain alarms, increase/decrease integration time to declare an alarm, etc. Alarm logs are available via the SNMP interface and are stored in Non Volatile Memory Remote Upgrades The main software components in the transmitter are remotely upgradeable via the Ethernet management interface. Instruction Manual Revision 01 Page 2-6

20 Installation UBS Ltd DTX 1200U Transmitter 3 Installation 3.1 Unpacking and Inspection Each DTX 1200U transmitter is completely assembled, tested and shipped in the appropriate packaging. Carefully unpack the unit and examine all shipping containers and contents for physical damage that might have occurred during shipment. If damage occurred during shipment please notify your freight carrier immediately. Missing or damaged equipment not caused by the freight carrier should be directed to UBS Ltd., in order to facilitate the replacement or repair of the equipment. Be sure to check the package contents carefully for important documents and materials. NOTE: Retain all shipping containers for storage or re-shipment purposes. All materials returned under warranty must be packed in their original shipping containers. 3.2 Environmental The transmitter is designed for the following environmental conditions: Indoor use Operating temperatures between 0 C and +50 C (+32 F and +122 F) Storage temperatures between -30 C and +70 C (-22 F and +158 F) Maximum relative humidity of 95%, non-condensing 3.3 Mounting This transmitter is delivered in a 19" rack mountable chassis. If several chassis are mounted in a 19" rack, special attention must be paid to the temperature inside the rack. The transmitter is equipped with forced air cooling fans on the front panel. If the transmitter is mounted between other instruments with a high surface temperature, this method of cooling may not be sufficient. Under these circumstances, it is recommended to make space between the instruments, and to establish additional forced air circulation (cooling) in the rack. 3.4 Grounding Before any other connection is made, the transmitter must be connected to a protective earth conductor via the three-core mains cable and the protective earth terminal marked: Instruction Manual Revision 01 Page 3-1

21 Installation UBS Ltd DTX 1200U Transmitter The service panel protective earth lead (ground bar) must be verified to be functioning properly before the unit can be connected to the service panel mains. CAUTION! WARNING! Ensure that the DTX 1200U is properly grounded before turning on the power. Any interruption of the ground conductor inside or outside the unit, or disconnection from the protective earth terminal is likely to make the product dangerous. Intentional interruption is prohibited. 3.5 Power Supply Mains AC Power Connection The transmitter is equipped with a tap-less switch mode power supply that covers most nominal voltage ranges in use. This avoids the need to adapt the unit to the local mains voltage. Mains AC Voltage: VAC RMS Frequency: 50/60 Hz Fuse Replacement The mains fuse-holder is located on the rear panel of the transmitter. DANGER! The DTX 1200U must be disconnected from all voltage sources when replacing a fuse. Fuse 240 VAC: 10 A; 250 V, Fast acting, type Littelfuse P or equivalent. If the mains fuse has to be replaced, please proceed as follows: 1. Remove the power cable. 2. Lift the plastic cover (fuse-holder) by means of a small screwdriver. 3. Insert the new fuse into the top of the fuse-holder. 4. Re-insert the cover (fuse-holder). CAUTION! Ensure that only fuses of the required rating, voltage, and of the specified type are used for replacement. Fuses must only be replaced by a qualified person who is aware of the hazards involved The use of repaired (jumpered) fuses and/or the short-circuiting of the fuse holder are prohibited. Instruction Manual Revision 01 Page 3-2

22 Installation UBS Ltd DTX 1200U Transmitter 3.6 Input and Output Connections In addition to the AC power connection, several other transmitter connections can be made during the installation. Figure 3-1 Transmitter Rear Panel Port Function Type Impedance GPS ANT GPS receiver input F-type (F) 75 ohms RECEIVER ANT DVB-S/S2 receiver input F-type (F) 75 ohms RECEIVER ASI OUT 1, OUT 2 DVB-S/S2 receiver MPEG transport stream output BNC (F) 75 ohms DVB-ASI IN A, IN B DVB-ASI OUT A, OUT B Modulator MPEG (ISDB-T/TB multiplexed) transport stream input Modulator MPEG (ISDB-T/TB multiplexed) transport stream output BNC (F) BNC (F) 75 ohms 75 ohms 10 MHz Internal GPS 10 MHz reference output BNC (F) 1k ohms 1 PPS Internal GPS 1 PPS reference output BNC (F) 1k ohms RF OUT Transmitter RF output 7/16 DIN (F) 50 ohms HPA RF Transmitter RF output monitoring port SMA (F) 50 ohms MONITOR RF MONITOR Modulator RF output monitoring port SMA (F) 50 ohms Ethernet Interface for Web GUI, Telnet (CLI), SNMP RJ45 N/A and M2M USB Interface for CLI USB Type-B N/A RS-232 Alarm Relays 9-pin SUB-D (M) N/A RS-485 HPA communication with system controller 9-pin SUB-D (F) N/A HPA RS-485 HPA communication with system controller 9-pin SUB-D (F) N/A HPA Serial Interface for HPA PC GUI 9-pin SUB-D (M) N/A Table 3-1 External Connections Instruction Manual Revision 01 Page 3-3

23 Installation UBS Ltd DTX 1200U Transmitter GPS Antenna A GPS antenna must be connected to the transmitter GPS ANT connector, as specified in Section The transmitter does not provide lightning protection therefore the operator must use the appropriate external protection device. Since the transmitters is intended for indoor use, a surge protector (lightning arrestor) is most effective when mounted to a large copper grounding plate located at the building entry point. A PTC-F02 Gas Tube surge protector from Nextek is available as an option. Figure 3-2 GPS Antenna Connection VSAT Antenna A VSAT antenna/lnb must be connected to the transmitter RECEIVER ANT connector, as specified in Section The transmitter does not provide lightning protection therefore the operator must use the appropriate external protection device. Since the transmitters is intended for indoor use, a surge protector (lightning arrestor) is most effective when mounted to a large copper grounding plate located at the building entry point GPS Receiver Input One (1) input (GPS ANT) is provided for the GPS Receiver as specified in Section DVB-S/S2 Receiver Input One (1) input (RECEIVER ANT) is provided for the DVB-S/S2 Receiver as specified in Section Instruction Manual Revision 01 Page 3-4

24 Installation UBS Ltd DTX 1200U Transmitter DVB-S/S2 Receiver Output Two (2) DVB-ASI outputs (OUT 1 and OUT 2) are provided for the DVB-S/S2 Receiver MPEG transport stream. Note: One of the ASI OUT connectors must be connected to one of the DVB-ASI input connectors when the DVB-S/S2 Receiver is used to provide the modulator board with a MPEG transport stream DVB-ASI Input Two (2) DVB-ASI inputs (IN A and IN B) are provided for a MPEG (ISDB-T/TB multiplexed) transport stream. DVB-ASI Monitoring Output Two (2) DVB-ASI outputs (OUT A and OUT B) are provided for monitoring the input MPEG (ISDB-T/TB multiplexed) transport stream. 10 MHz Reference Output One (1) output provides a 10 MHz reference from the GPS receiver. 1 PPS Reference Output One (1) output provides a 1 PPS reference from the GPS receiver. RF Output The transmitter RF output provides a 120 W RMS, ISDB-T/TB modulated signal with a frequency range of 470 MHz to 860 MHz. Note: the transmitter RF output must be connected to a properly rated antenna or load. HPA RF Output Monitoring Port One (1) port is provided for monitoring of the transmitter RF output, 51 db below the selected transmitter RF output level. Modulator RF Output Monitoring Port One (1) port is provided for monitoring of the modulator RF output, 30 db below the selected RF output level. USB Port One (1) USB port is provided for access to the CLI (Command Line Interface). Instruction Manual Revision 01 Page 3-5

25 Installation UBS Ltd DTX 1200U Transmitter Ethernet Port Two (2) Ethernet ports are provided for network access. Connector A is always active; optionally connector B can be activated. Once the modulator has been configured with the correct network settings, the user can access the modulator via the Web GUI, CLI (via Telnet) and SNMP. The Ethernet connector(s) can also be configured for Machine-to- Machine communication. Note: It is recommended to install a ferrite clamp, such as Wurth Elektronik model or equivalent, on the network cable, with two loops, in order to comply with the Radiated emissions requirements RS232 Serial Port The RS232 serial port can configured to provide two (2) Alarm Relays. Pin No Function 1 Relay 1 contact 2 RxD 3 TxD 4 Relay 2 contact 5 GND 6 Relay 1 contact 7 RTS 8 CTS 9 Relay 2 contact Table 3-2 RS232 Connector Pin-out RS232 Settings Baud rate: 9600, 8 data bits, no parity, 1 stop bit, no flow control RS232 Alarm Relays Two (2) alarm relays are available on the RS232 serial port. The alarm relay contacts are normally open and close on alarm; when the modulator is turned off the contacts are normally closed. Each relay is software controlled and can be set to trigger on a specific alarm. Instruction Manual Revision 01 Page 3-6

26 Installation UBS Ltd DTX 1200U Transmitter RS485 Serial Port The RS485 port is used for communication (Machine to Machine) with the HPA via the HPA-RS485 Interface. An external serial cable is used to conenct the ports and is provided with the transmitter. Pin No Function 1 Relay 1 contact 2 Ground 3 External Reset 4 Rx- 5 Tx+ 6 Relay 1 contact 7 Ground 8 Rx+ 9 Tx- Table 3-3 RS485 Connector Pin-out HPA RS485 Serial Port The HPA RS485 Serial port is used for communication (Machine to Machine) with the modulator via the RS485 Interface. An external serial cable is used to conenct the ports and is provided with the transmitter. Pin No Function 1 NC 2 GND 3 NC 4 Tx- 5 Rx+ 6 NC 7 NC 8 Tx+ 9 Rx- Table 3-4 HPA RS485 Connector Pin-out Instruction Manual Revision 01 Page 3-7

27 Installation UBS Ltd DTX 1200U Transmitter HPA Serial Port The HPA Serial port (RS232) is used to communicate with the HPA using the UBS HPA Monitor PC GUI application. Pin No Function 1 Relay 1 contact 2 RxD 3 TxD 4 Relay 2 contact 5 GND 6 Relay 1 contact 7 RTS 8 CTS 9 Relay 2 contact Table 3-5 HPA Serial Connector Pin-out Instruction Manual Revision 01 Page 3-8

28 Operating Instructions UBS Ltd DTX 1200U Transmitter 4 Operating Instructions 4.1 Introduction This section outlines the initial turn on procedure and addresses processes for monitoring and control of the DTX 1200U Transmitter. 4.2 Initial Turn-On Procedure Once the DTX 1200U is installed and all input, output and AC connections are made, the transmitter is ready to be turned on. Ensure that the output of the transmitter is connected to a sufficiently rated broadcast antenna or load before turning the unit on. 1. Turn on the AC power switch. 2. Once the transmitter has finished its boot up process, which takes approximately 90 seconds, configure it for access to the local network. This can be done using the transmitter front panel touch screen LCD. Navigate to Status window F and press the enter button. This will take the user to a System parameters sub-menu where the Network parameters can be configured. 3. Using a PC, open a Web browser and logon to the transmitter Web GUI. 4. Check the Status screen for active alarms. The only alarms present should be GPS Quality Low and Satellite Unlocked. The GPS Quality Low alarm will take up to 10 minutes to clear as satellites are acquired. 5. During the initial on-site turn on, it is recommended to set the output level to 44 dbm via the Web GUI before the transmitter RF is turned on. This will ensure that the effects of a transmission line or antenna fault are minimized when the RF is turned on. Go to Config HPA Transmitter and set the output power level to 44 dbm. 6. For SFN operation, check the Status screen to ensure that the GPS Quality Low alarm has cleared. Once the alarm has cleared, the transmitter can be placed in Broadcast mode. For MFN operation, the GPS is not required to be locked. 7. The transmitter front panel display can be used to monitor the transmitter forward and reflected power levels. 8. If the forward and reflected power levels are acceptable, increase the transmitter output level by 3 db and continue to monitor the forward and reflected power levels. 9. Continue to increase the transmitter output level by 3 db, until the desired output level is reached (max of 50.8 dbm). Note: The default password for the CLI and Web GUI is admin Instruction Manual Revision 01 Page 4-1

29 Operating Instructions UBS Ltd DTX 1200U Transmitter 4.3 Control and Communication The transmitter can be controlled and monitored locally (on-site), or remotely from a Network Management System (NMS) Control and Communication Interfaces There are two interface ports provided for control and communication: Ethernet Port (RJ-45) used for local control with a laptop PC and remote access through a LAN. Web GUI, SNMP and CLI (Telnet and HyperTerminal) protocols are supported. USB Port (Type B) used for local control, initial setup, status information and troubleshooting with a laptop PC. A Command Line Interface (CLI) is the supported protocol Web GUI The transmitter hosts an internal web interface (Web GUI) accessible through its Ethernet port. The Web GUI is an intuitive interface allowing the user to access the current status and configure the operational parameters of the transmitter. The Web interface uses a simple hierarchical menu structure which provides access to all transmitter parameters. For a detailed description of the Web GUI interface refer to Section 5 - Web GUI Interface SNMP The transmitter SNMP interface provides the means for remote management of the unit and to accept alarm traps. The notification options can be configured on a per-alarm basis. The user may decide to mask certain alarms, increase/decrease integration time to declare an alarm, etc. Alarm and event logs are available via the SNMP interface and are stored in Non Volatile Memory CLI The CLI allows the user to access the current status and configure the operational parameters of the transmitter. The CLI uses a simple hierarchical menu structure which provides access to all transmitter parameters. For a detailed description of the CLI interface refer to Section 6 - CLI (Command Line Interface) Front Panel Interface The DTX 1200U can also be configured using the front panel touch screen LCD. For a detailed description of the Front Panel interface refer to Section 7 - Front Panel Interface Local Access The transmitter can be controlled and monitored locally (on site) through the Ethernet Port and/or the USB port with a laptop PC. The front panel touch screen LCD can also be used for local access. The Ethernet port provides access to the Web GUI and CLI through Telnet. The USB port provides access to the CLI, which allows the operator to perform initial setup/troubleshooting when network connectivity is not available or desired. Instruction Manual Revision 01 Page 4-2

30 Operating Instructions UBS Ltd DTX 1200U Transmitter Remote Access The Network Management System (NMS) operator can control and monitor the transmitter remotely through the Ethernet port and LAN using the Web GUI and/or SNMP interfaces. To facilitate the remote control of several units, each transmitter may be individually named (16 characters). This name is available on the control interfaces Network Parameters The network parameters need to be configured properly in order to communicate with the transmitter on an IP network. This is required to access the Web GUI, Telnet (CLI) and SNMP, as well as for upgrading the main software components. If the default network settings are not known, they can be found by navigating to Status Display window e on the font panel touch screen LCD. If the default network settings are known and want to be changed, the user can do so via the Web GUI. See Figure 5-33 Network Parameters Configuration for details. 4.4 Modes of Operation There are two main parameter groups which determine the operating mode: the HPA Transmitter parameter group and the Modulator Mode parameter group HPA Transmitter Operating Modes The transmitter supports Broadcast, Standby and Manual operating modes. If the transmitter experiences an AC power interruption under normal, no fault conditions, the transmitter s AC power-up algorithm will restore the mode of operation that was active prior to the AC power interruption, once power is restored Broadcast Mode The transmitter normally operates in broadcast mode, allowing it to transmit a broadcast signal and run all protection loops and ALC. It receives a transport stream signal, or generates an internal test signal and transmits an OFDM signal for the terrestrial broadcast. In this mode all transmitter functions are automatically maintained by the system controller. To operate in broadcast mode, the following conditions must be met for SFN Hierarchical operation: The transmitter must be receiving an input signal and be locked to the input stream (if the modulator is in test mode, the input signal presence is ignored) The system must have a GPS signal lock with no alarms (if the modulator is in test mode, the GPS signal presence is ignored) The ALC loop must be running There must be no transmitter alarms Instruction Manual Revision 01 Page 4-3

31 Operating Instructions UBS Ltd DTX 1200U Transmitter To operate in broadcast mode, the following conditions must be met for MFN operation: The modulator output must be unmuted (see note) The ALC loop must be running There must be no HPA alarms Note: The modulator will generate a COFDM output signal in MFN mode even if certain alarms are present and the modulator output is unmuted. See Section 9 for a full description of alarms Standby Mode In this mode the transmitter output is muted by disabling the HPA DC power supply and muting the modulator board output. ALC is also turned off. The operating conditions in Standby Mode are: AC power is supplied to the transmitter (modulator and amplifier) The HPA DC power supply is disabled The HPA TX (DC bias) switch is off The HPA RF switch is off The modulator output is muted Manual Mode Manual Mode is used for factory testing and troubleshooting purposes only. It is highly recommended that this mode is not used by the customer. Modulator Modes The modulator supports three modes of operation: MFN, Hierarchical and SFN Hierarchical MFN Mode MFN Mode allows the user to configure the transmission (modulation) parameters for a single layer (A) from any of the transmitter interfaces see Figure Hierarchical Mode When the modulator is set to Hierarchical Mode, the transmission (modulation) parameters are set by the multiplexer IIP control configuration information and cannot be changed from any of the modulator interfaces. Layer A, Layer B and Layer C modulation parameters will be displayed by the modulator. Note: The multiplexer and modulator must both be synchronized to a 10 MHz reference source to ensure that the bit rate of each device is identical. Instruction Manual Revision 01 Page 4-4

32 Operating Instructions UBS Ltd DTX 1200U Transmitter SFN Hierarchical Mode When the modulator is set to SFN Hierarchical Mode, the transmission (modulation) parameters are set by the multiplexer IIP control configuration information and cannot be changed from any of the modulator interfaces. Layer A, Layer B and Layer C modulation parameters will be displayed by the modulator see Figure MHz and 1 PPS reference signals are obtained from the internal GPS receiver for timing synchronization with multiplexer IIP network synchronization information. The delay parameters used in the SFN Hierarchical mode are: SFN Max. delay - specified in the IIP packet IIP Delay offset - specified in the IIP packet Input Network Delay - this parameter is reported only Local Delay Offset - delay set by the user The final result is: Adjusted SFN Delay = SFN Max. delay + IIP delay + Local Delay offset Test Modes The modulator supports three test modes: CW Signal Null First Symbol: the first symbol of the frame is set to zero. This feature is used to measure the delay between multiple modulators in SFN Mode. Carrier Removal: the operator can select the number of carriers removed from the center of the spectrum. Note: The Test Mode must be set to None for normal operation. 4.5 Partial Reception One segment (One-Seg) partial reception uses a dedicated segment, which is positioned as the central segment among the 13 OFDM segments. By limiting the range of frequency interleaving within the segment, it can be decoded independently of the other 12 segments. In this mode, one layer (Layer A) is reserved for the single center segment and must be configured accordingly. 4.6 Modulation The modulator board converts the ASI input streams into an OFDM waveform and creates a single analog RF output. The data coding and modulation is in accordance with the ISDB-T/TB standards and can be configured by the user. The 6 MHz transmission spectrum is divided into 13 OFDM segments. Instruction Manual Revision 01 Page 4-5

33 Operating Instructions UBS Ltd DTX 1200U Transmitter 4.7 ASI Inputs The DTX 1200U is provided with two serial ASI inputs that accept an ISDB-T/TB multiplex transport stream. The ASI input can be automatically selected, or assigned by the user. The automatic switching provides near seamless switching to a secondary transport stream if the primary transport steam source fails. 4.8 RF Output The RF output covers a frequency range of 470 MHz to 860 MHz in 1 Hz steps. A preconfigured UHF channel grid with 8 MHz carrier spacing is available, as well as a user configurable channel grid. The carrier bandwidth/channel spacing is user selectable for manual frequency setting and the user configurable channel grid. The output power level is adjustable from 41 dbm to 51 dbm in 0.1 db steps. The user can also set the polarity of the spectrum to Inverted or Non-inverted as required. 4.9 Windowing (Window Enabled) The windowing function is a raised cosine window that reduces the modulation sidebands of the COFDM spectrum. It may be enabled or disabled Adaptive Non-linear Pre-corrector The transmitter is equipped with an internal adaptive non-linear pre-corrector that has an operating range of 470 MHz to 860 MHz. An additional input is provided for the RF feedback brought from the High Power Amplifier (HPA) Output. The Pre-corrector can be enabled or disabled and set to run once or continuously from any of the transmitter interfaces. The adaptive pre-corrector compensates for the HPA non-linearities, including AM/AM and AM/PM distorsion, spectral re-growth and error vector magnitude (EVM). The complex signal processing is done in the RF domain. This pre-corrector supports a fully adaptive operation: the feedback signal (HPA output) is compared to the modulator s RF output signal (HPA input) in order to optimize the correction, which will improve the shoulders of the RF output. Instruction Manual Revision 01 Page 4-6

34 Operating Instructions UBS Ltd DTX 1200U Transmitter 4.11 Manual Digital Linear and Non-linear Pre-correctors The modulator is equipped with digital linear and non-linear pre-correctors (pre-distorters) that can significantly improve the performance of the transmitter. The Pre-corrector function can be switched on and off from the Web GUI, CLI or front panel. The non-linear pre-corrector compensates for power amplifier non-linearity and is able to provide a separate adjustment for the low and high frequency shoulders of the wide channel spectrum. Additionally, the non-linear pre-corrector may serve as peak limiter in order to control peak to average power ratios. The Linear pre-corrector compensates for the group delay created by an output filter. The input-gain of the Pre-corrector can also be used to adjust the power-level of a transmitter. CAUTION! Adjusting the input-gain of the Pre-corrector and thereby the power-level of the transmitter must be carried out with the utmost care, since higher than normal levels may cause damage to the transmitter. The construction of the Pre-corrector curve is aided by a software application that provides a graphical user interface to the Pre-corrector curve. Combined with a spectrum analyzer on the transmitter output, a repetitive process can be carried out to optimize the pre-corrector curve to the actual transmitter. In addition to being a highly effective tool for creating pre-correction curves, the UBS Corrector GUI has extensive features for storing and retrieving pre-correction curves to and from the PC storage medium (i.e. hard disk drive). The UBS Corrector GUI also allows storing and retrieving up to ten linear and non-linear curve presets to and from the modulator. The Manual M03 Digital Pre-Corrector GUI Software describes in detail, the operation of the Precorrector. Note: The Non-Linear Pre-corrector has been factory configured with a -5 db peak clipping level and set to ON. The NLP should remain on at all times to maintain a back-off of 12 db. Instruction Manual Revision 01 Page 4-7

35 Web GUI UBS Ltd DTX 1200U Transmitter 5 Web GUI Interface 5.1 Introduction The DTX 1200U transmitter parameters can be reviewed or changed using the Web GUI interface. The Web GUI is an intuitive interface allowing the user to access the current status and set up the operational parameters. The Web GUI uses a simple hierarchical menu structure which provides access to the transmitter parameters. The transmitter needs to be assigned an IP address in order to access the Web GUI. The unit is shipped from the factory with a default IP address, but the user will need to configure the IP address of each unit for local network access. The IP address can be accessed and modified from the front panel LCD, the Web GUI or the CLI. 5.2 Access and Navigation Login Connect either locally or remotely via the transmitter Ethernet port: Open a web browser window (e.g., Internet Explorer window) and enter the transmitter IP address. For example: The first menu page is the transmitter login page. The default password for normal access is admin Figure 5-1 Login Page Instruction Manual Revision 01 Page 5-1

36 Web GUI UBS Ltd DTX 1200U Transmitter Once the user successfully logs in, the main status page is displayed Main Status Page The main (Global) status page provides general information about parameter settings and alarm status. The drop down menus, located at the top of the page, provide links to other pages that control various parameters and alarm functions. Figure 5-2 Transmitter Global Status (MFN Mode) Instruction Manual Revision 01 Page 5-2

37 Web GUI UBS Ltd DTX 1200U Transmitter Figure 5-3 Transmitter Global Status (SFN Hierarchical Mode) Instruction Manual Revision 01 Page 5-3

38 Web GUI UBS Ltd DTX 1200U Transmitter GUI Navigation and Structure The main status page (see Figure 5-2 and Figure 5-3 above) demonstrates the hierarchical structure of the web interface. Along the top of the screen are a row of five icons with drop down menus. The five menu categories are: 1) Status Shows the current operating status of the transmitter 2) Config Provides access to change the transmitter operating parameters 3) Alarms Alarm status and settings and log information 4) NMS Users Set users log in authorization, passwords and other information 5) System Parameters Set access control, network and SNMP parameters. Also used for system reset and software upgrades The menu tree for the Web GUI is listed below. Status Config Alarms NMS Users System Parameters Global Status HPA Transmitter Alarm Properties User Properties Identification GPS Status Modulator Mode Clear Logs Access Control Satellite Receiver Transmission Alarm Status Network Parameters HPA Status Input SNMP Parameters Adaptive Pre-Corrector Output Non-linear Precorrector Linear Precorrector Adaptive Precorrector Manual HPA Control Site GPS Satellite Receiver Table 5-1 Web GUI Menu Structure System Time Heartbeat Time System Reset User Configuration Download Config File(s) Upgrade and Files Upload List Uploaded Files Instruction Manual Revision 01 Page 5-4

39 Web GUI UBS Ltd DTX 1200U Transmitter Changing Parameters Before changes to system parameters are accepted the user must first click the submit button. The example below has the user clearing the alarm log in the Clear Log screen. Figure 5-4 Example of Submitting a Parameter Change Once the user has selected Yes for the Clear Log pull down box, the user will then need to click Submit. At that time a small green box will appear at the bottom of screen confirming the change. 5.3 Status Menu The Status menu contains the following drop-down items see Figure 5-5 below: Global Status GPS Status Satellite Receiver HPA Status Adaptive Pre-corrector Figure 5-5 Status Menu Selection Instruction Manual Revision 01 Page 5-5

40 Web GUI UBS Ltd DTX 1200U Transmitter Global Status The Global Status page appears upon login and summarizes the current system configuration and overall system status. The list of parameters will change dynamically as the transmitter mode (MFN, Hierarchical or SFN Hierarchical) is changed. See Figure 5-2 and Figure 5-3 for details. Versions and Serial Numbers: Indicates the software and firmware version number for each of the main software components of the modulator. Mode: Indicates the modulator mode of operation: MFN (multiple frequency network), Hierarchical or SFN Hierarchical (single frequency network) as well as the Test Mode. Transmission - Global: Indicates the IIP PID, IFFT mode, Guard Interval and whether Partial reception is enabled. This section also includes the SFN Maximum Delay, Local Delay Offset, IIP Delay Offset and the adjusted SFN Maximum Delay. The set of transmission parameters will be different for each modulator mode of operation. Transmission Layers A, B and C: Displays the main parameters for each layer including Number of segments, Code Rate, Constellation and Interleave Length. The ideal Data Rate for each layer is also displayed. Input: Indicates the Selected Input (Auto in this case), Input Status (locked or unlocked) and the status of the 10 MHz and 1PPS Reference inputs. Output: Indicates the manual Mute setting (ON or OFF), the Spectrum Inversion (ON or OFF), the Output Power Level, Output Frequency, Window Enable setting (ON or OFF) and the Board Temperature. The mute status (Muted or Unmuted) can be automatically muted even if the mute mode is set to unmuted. This will be the result of an active alarm. Pre-corrector: Indicates the status of the Linear and Non-linear Pre-correctors. Network: Indicates the modulator IP Addresses, Default Gateway and the Management Netmask. Ethernet Interface Status: Indicates the link status and speed. User Configuration: Indicates the address assigned to the RS232 port for Machine-to-Machine communication. Alarms: Shows the number of active alarms Instruction Manual Revision 01 Page 5-6

41 Web GUI UBS Ltd DTX 1200U Transmitter GPS Status The GPS Status page provides access to GPS receiver information including the lock status and the number of visible satellites, as well as the exact location and time. Figure 5-6 GPS Status Satellite Receiver Status The Satellite Receiver page displays the Satellite Receiver Signal Level, SNR and Status. Figure 5-7 Satellite Receiver Status Instruction Manual Revision 01 Page 5-7

42 Web GUI UBS Ltd DTX 1200U Transmitter HPA Status The HPA Status page provides access to HPA information including the HPA TX Mode (Broadcast or Standby), Forward and Reflected power levels, sub-module status as well as sub-module DC voltage and current values. Figure 5-8 HPA Status Instruction Manual Revision 01 Page 5-8

43 Web GUI UBS Ltd DTX 1200U Transmitter Adaptive Pre-corrector Status The Adaptive Pre-corrector Status page summarizes the active status of the Adaptive Pre-corrector as well as its configuration including input, feedback and attenuation levels. The Adaptive Pre-corrector page will display the following: AP Output Mode indicates whether the Adaptive Pre-corrector is Enabled or Disabled. AP Status Mode if Signal Search is present and the AP Output mode is set to Enabled, the Adaptive Pre-corrector is trying to find the signal. It will maintain this state if the RF Feedback signal is not present or its level is too low. If Processing is present the Adaptive Pre-corrector has found the signal and is in the process of finding optimal adaptation coefficients. If Correction is present, the Adaptive Pre-corrector has found optimal adaptation coefficients. AP Input Power indicates the measured input power level if the AP Status Mode is displayed as Correction. Otherwise, the value is -55 dbm. AP Feedback Power indicates the measured is feedback power level if the AP Status Mode is displayed as Correction. Otherwise, the value is -55 dbm. AP Feedback Power Target indicates the optimal AP Feedback Power level after the internal step attenuator. The parameter is factory configured to -15 dbm. AP Feedback Attenuation Value indicates the current step attenuator attenuation value. AP Feedback Attenuation Mode indicates the step attenuator control mode, which is factory configured to Auto. Adaptation State Running indicates that the adaptation process is Running continuously or the adaptation coefficients are Frozen. The adaptation coefficients may not be optimal if for some reason the centre frequency or signal level are changed and the adaptation state is set to Frozen. Figure 5-9 Adaptive Pre-corrector Status Instruction Manual Revision 01 Page 5-9

44 Web GUI UBS Ltd DTX 1200U Transmitter 5.4 Config Menu The Config menu provides access to the transmitter operating parameters. The operating parameters and their range of values or settings are also accessible through the CLI interface and Front Panel interface. The Config menu contains the following drop down items (also see figure below): HPA Transmitter Modulator Mode Transmission Input Output Non-Linear Precorrector Linear Precorrector Adaptive Precorrector Manual HPA Control Site GPS Satallite Receiver Figure 5-10 Config Menu Selection Instruction Manual Revision 01 Page 5-10

45 Web GUI UBS Ltd DTX 1200U Transmitter HPA Transmitter The HPA Transmitter page contains a drop down menu that allows the user to set the transmitter to one of the following modes: Broadcast Standby Manual Broadcast mode represents normal operation. Standby mode disables the transmitter output. In Manual mode the HPA behaves as a simple amplifier and the modulator control of the HPA output is limited to setting the input drive level to the HPA. The transmitter output power target can be set to a value between 41 dbm and 51.5 dbm. The available parameters are: Figure 5-11 HPA Transmitter Configuration Item HPA TX Mode Tx Pwr. target Option Broadcast, Standby, Manual 41.0 to 51.5 dbm Table 5-2 HPA Transmitter Parameters Instruction Manual Revision 01 Page 5-11

46 Web GUI UBS Ltd DTX 1200U Transmitter Modulator Mode The Modulator Mode page allows the users to select the Modulator Mode and the Test Mode. When the Test Mode Carrier Removal option has been selected, the user may select the number of carriers removed. Figure 5-12 Modulator Mode Configuration The available parameters are: Item Option Mode MFN, Hierarchical, SFN Hierarchical Test Mode None, CW, Null First Symbol, Carrier Removal Carriers Removed Range: Table 5-3 Modulator Mode Parameters Note: The Test Mode must be set to None for normal operation. Instruction Manual Revision 01 Page 5-12

47 Web GUI UBS Ltd DTX 1200U Transmitter Transmission The set of Transmission parameters are used to configure the transmitter modulation parameters. The list of Transmission (modulation) parameters will dynamically change, depending on the Modulator Mode selected: MFN, Hierarchical or SFN Hierarchical. In SFN Hierarchical mode, a network of transmitters operating at the same frequency are all synchronized using special timing packets embedded in the input transport stream as well as GPS timing information. Figure 5-13 Transmission Configuration (MFN Mode) The available parameters in MFN Mode are: Item Selection IIP Pid Range: Partial Reception OFF, ON IIFT Mode1(2k), Mode2(4k), Mode3(8k) Guard Interval 1/32, 1/16, 1/8, 1/4 Num Segments A Range: Interleave Length A ByPass, (4,2,1), (8,4,2), (16,8,4) Coderate A 1/2, 2/3, 3/4, 5/6, 7/8 Constellation A DQPSK, QPSK, 16QAM, 64QAM Table 5-4 Transmission Parameters (MFN Mode) Instruction Manual Revision 01 Page 5-13

48 Web GUI UBS Ltd DTX 1200U Transmitter Figure 5-14 Transmission Parameters (Hierarchical Mode) The available parameters are: Figure 5-15 Transmission Parameters (SFN Hierarchical Mode) Item Option IIP Pid Range: Equipment ID Range: Local DelayOffset Range: usec Table 5-5 Transmission Parameters (SFN Hierarchical Mode) Instruction Manual Revision 01 Page 5-14

49 Web GUI UBS Ltd DTX 1200U Transmitter Input The Input page allows the user to configure the modulator input for a specific input type. The available parameters are: Figure 5-16 Input Configuration Item Selected Input Selection A, B, Auto Table 5-6 Input Parameters Instruction Manual Revision 01 Page 5-15

50 Web GUI UBS Ltd DTX 1200U Transmitter Output The Output page allows the user to Mute the modulator output, set the Spectrum Inversion, enable or disable the Windowing and modify the RF Power Level and RF Output Frequency. The available parameters are: Figure 5-17 Output Configuration Item Mute ON/OFF Spectrum Inversion Window Enable RF Power Level RF Output Frequency Selection OFF, ON OFF, ON OFF, ON Range: to 0.0 dbm Range: Hz Table 5-7 Output Parameters Instruction Manual Revision 01 Page 5-16

51 Web GUI UBS Ltd DTX 1200U Transmitter Non-linear Pre-corrector Screen This screen allows the user to select the NLP (Non-Linear pre-corrector) Profile state and profile. Note: The Non-Linear Pre-corrector has been factory configured with a -5 db peak clipping level and set to ON. The NLP should remain on at all times to maintain a back-off of 12 db. The available parameters are: Figure 5-18 Non-linear Pre-corrector Configuration Item NLP State NLP Profile Selection ON/OFF A selection of different NLP profile files Table 5-8 Non-linear Pre-corrector Parameters Instruction Manual Revision 01 Page 5-17

52 Web GUI UBS Ltd DTX 1200U Transmitter Linear Precorrector This screen allows the user to select the LP (Linear pre-corrector) State and profile. The available parameters are: Figure 5-19 Linear Pre-corrector Configuration Item LP State LP Profile Selection OFF, ON A selection of different LP profile files Table 5-9 Linear Pre-corrector Parameters Instruction Manual Revision 01 Page 5-18

53 Web GUI UBS Ltd DTX 1200U Transmitter Adaptive Pre-corrector The operator has the ability to Enable or Disable the Adaptive Pre-corrector from this page and set the Adaptation State to Running or Frozen. The Adaptive Pre-correction can be Enabled or Disabled while the transmitter is in Broadcast mode. When the AP Output Mode is Enabled, the calculated adaptation coefficients will be applied, thus the Pre-correction will be on. Setting the AP Output Mode to Disabled will turn off the Pre-correction. When the Adaptation State is Running, the adaptation coefficients will be optimized constantly. When the Adaptation State is Frozen, the adaptation coefficients will not be optimized constantly, but the Pre-correction can still be Enabled. When the Adaptive Pre-corrector is Enabled for the first time, the Adaptation State must be set to Running so that the adaptation coefficients can be calculated. Once the coefficients have been captured, the Adaptation State can be set to Frozen. If the transmission parameters are modified, the Adaptation State should be run so that the adaptation coefficients can be optimized, relative to the new settings. Note: If the transmitter is power cycled, the Adaptation State will be set to Running upon power-up, regardless of the state prior to the power being turned off. This will ensure that the coefficients are re-calculated when power is restored. The Adaptive Pre-corrector Status page will display the Adaptation State as Running, while the Adaptive Pre-corrector configuration page will display the Adaptation State (Running or Frozen) selected prior to the power being turned off. It is possible for the Adaptation State to be Running, with the Adaptive Pre-corrector page displaying the Adaptation State as Frozen. The available parameters are: Figure 5-20 Adaptive Pre-corrector Configuration Item AP Output Mode Adaptation State Selection Enabled/Disabled Running, Frozen Table 5-10 Adaptive Pre-corrector Parameters Instruction Manual Revision 01 Page 5-19

54 Web GUI UBS Ltd DTX 1200U Transmitter Manual HPA Control The Manual HPA Control page is only relevant for transmitter servicing and is not required for normal operations. The available parameters are: Item HPA Power Supply ON/OFF HPA DC ON/OFF HPA RF Output ON/OFF HPA Broadcast UPC Level (dbm) Figure 5-21 Manual HPA Control Selection ON/OFF ON/OFF ON/OFF Range: -10 to 0 dbm Table 5-11 Manual HPA Control Parameters Instruction Manual Revision 01 Page 5-20

55 Web GUI UBS Ltd DTX 1200U Transmitter Site The Site page allows the user to add information identifying the site, including the name of the site, address, contact information, etc. Each item is limited to 35 alphanumeric parameters. The available parameters are: Figure 5-22 Site Configuration Item System Description Contact Information System Location Site Address Line 1 Site Address Line 2 Site Address Line 3 Site Address Line 4 Site Notes Option up to 35 alphanumeric characters up to 35 alphanumeric characters up to 35 alphanumeric characters up to 35 alphanumeric characters up to 35 alphanumeric characters up to 35 alphanumeric characters up to 35 alphanumeric characters up to 35 alphanumeric characters Table 5-12 Site Parameters Instruction Manual Revision 01 Page 5-21

56 Web GUI UBS Ltd DTX 1200U Transmitter GPS The most important parameter for the GPS page is the Max GPS Holdover Time parameter. Following a loss of signal lock to the GPS satellite network, the Max GPS Holdover time is the maximum length of time the system will continue to operate in a free-running mode before an alarm is issued leading to a possible transmitter shutdown condition. It is imperative for a SFN network for all transmitters to be synchronized to GPS at all times. The available parameters are: Figure 5-23 GPS Configuration Item Max GPS Holdover Time, min Update System Clock From GPS System Timezone Selection Range: 0 to minutes (Recommended: 180 min) Yes/No -11 to 11 hours Table 5-13 GPS Parameters Instruction Manual Revision 01 Page 5-22

57 Web GUI UBS Ltd DTX 1200U Transmitter Satellite Receiver The Satellite Receiver page allows the user to set the Satellite Receiver Standard, LNB Polarization, Band, Frequency and Symbol Rate. The Satellite Receiver must be configured correctly so that it can lock onto the input signal and begin signal processing. The available parameters are: Figure 5-24 Satellite Receiver Configuration Item DVBS Standard Polarization Band Frequency Symbol Rate Selection DVBS1, DVBS2 Horizontal, Vertical Low, High This sets the LNB Ku Band frequency. Range: MHz Range: SPS Table 5-14 Satellite Receiver Parameters Instruction Manual Revision 01 Page 5-23

58 Web GUI UBS Ltd DTX 1200U Transmitter 5.5 Alarms Menu The Alarms menu contains the following drop-down items: Alarm Properties Clear Logs Alarm Status The Alarms menu allows the user to set the properties of each alarm including system actions, and allows the user to view alarm and event logs. Figure 5-25 Alarms Menu Selection Clear Logs The alarm logs can be cleared by setting the Clear Log pull down box to Yes and selecting Submit. Figure 5-26 Clear Logs Screen Instruction Manual Revision 01 Page 5-24

59 Web GUI UBS Ltd DTX 1200U Transmitter Alarm Properties The alarm properties page is shown in Figure The first item in the Alarm Properties page is the Alarm Index. The Alarm Index box has a pull-down menu permitting the user to select a specific alarm from the list below. This permits the user to select a specific alarm for configuration. For a description of each alarm see Section 9. Modulator Restarted Heartbeat HPA TX Rfl. Pwr. Fault HPA TX Fwr. Pwr. Fault HPA TX Inp. Pwr. Fault HPA Temperature Fault HPA Temperature Warning HPA PA Voltage Fault HPA PA Current Fault HPA PA Bias Voltage Fault HPA Driver Voltage Fault HPA Pre-Driver Voltage Fault HPA Shutdown Fault HPA Comm. Fault GPS Antenna Undercurrent GPS Antenna Overcurrent GPS Quality Low GPS Comm Error Table 5-15 Transmitter Alarms Satellite Comm Error Satellite Receiver Fault Satellite Unlocked Satellite Power Fault Satellite Overload AP RF Input Low AP RF Feedback Low AP No Correction AP HPA FB Out of Range No Input Data 10 MHz Reference Loss 1PPS Reference Loss IIP Packet Loss Data Input Too High Up Converter Unlock Input Bitrate Is Out Of Limit Up Converter Communication Error Instruction Manual Revision 01 Page 5-25

60 Web GUI UBS Ltd DTX 1200U Transmitter For each alarm the user can set the following: Figure 5-27 Alarm Properties Configuration Item Trap notification on Alarm Integration Time Mute IF on Alarm Relay on Alarm Second Relay on Alarm Selection OFF, ON Set as ON/OFF to control if an alarm will produce a SNMP trap notification. Range: sec Length of time an alarm condition is present before the alarm is declared. OFF, ON Set to control whether the transmitter output is muted for this alarm OFF, ON Set to control whether the alarm relay is activated with this alarm. OFF, ON Set to control whether the second alarm relay is activated with this alarm. Table 5-16 Alarm Properties Each active alarm can be set to send an SNMP trap, mute the modulator output, as well as trigger one or both alarm relays, if desired. The integration time can also be set from this window. Instruction Manual Revision 01 Page 5-26

61 Web GUI UBS Ltd DTX 1200U Transmitter Alarm Status The Alarm Status page includes a list of current alarms, the alarm log and detailed information on the current settings for each configurable modulator alarm. Figure 5-28 Alarm Status Page Instruction Manual Revision 01 Page 5-27

62 Web GUI UBS Ltd DTX 1200U Transmitter 5.6 NMS Users Menu The NMS Users menu includes the User Properties menu. The NMS Users menu sets the parameters required for an individual user to establish communications with transmitter via the SNMP Network Management System (NMS). From the User Properties menu, each NMS user can be configured with a user name, password, Cryptographic Hash Function authentication type (SHA, MD5, none) and Data Encryption mode (DES, AES, none) plus encryption password. Figure 5-29 NMS User Properties Configuration For each user, the following authorization parameters can be set: Item Username Authorization Type Auth. Password Priv Type Priv. Password Selection up to 35 alphanumeric characters Disabled, MD5, SHA Cryptographic Hash Function up to 35 alphanumeric characters Disabled, DES, AES Data Encryption up to 35 alphanumeric characters Table 5-17 NMS User Parameters Instruction Manual Revision 01 Page 5-28

63 Web GUI UBS Ltd DTX 1200U Transmitter 5.7 System Parameters Menu The System Parameters menu displays the modulator access control, network and SNMP parameters. It is also used for system reset and upgrades. The System Parameters menu contains the following drop-down menu items: Identification Access Control Network Parameters SNMP Parameters System Time Heartbeat Time System Reset Download Config Files(s) Upgrade and Files Upload List Uploaded Files Figure 5-30 System Parameters Menu Selection Instruction Manual Revision 01 Page 5-29

64 Web GUI UBS Ltd DTX 1200U Transmitter Identification The Identification page allows the user to add the following site identifiers: Item Site Name Site ID Option up to 35 alphanumeric characters up to 15 alphanumeric characters Table 5-18 Identification Parameters Figure 5-31 Identification Configuration Access Control The Access Control page allows the user to set a password for the Web GUI interface. Item Web Password Option up to 14 alphanumeric characters Table 5-19 Access Control Parameters Figure 5-32 Access Control Configuration Instruction Manual Revision 01 Page 5-30

65 Web GUI UBS Ltd DTX 1200U Transmitter Network Parameters The Network Parameters page allows the user to set the network parameters for the modulator. Item Option Management IP Standard IP address e.g., Management Netmask Standard netmask field e.g., Default Gateway Standard IP address e.g., Table 5-20 Network Parameters Figure 5-33 Network Parameters Configuration Instruction Manual Revision 01 Page 5-31

66 Web GUI UBS Ltd DTX 1200U Transmitter SNMP Parameters The SNMP Parameters page allows the user to configure the SNMP interface for the modulator. Item Option SNMP Traps On/Off ON/OFF SNMP Trap Server IP Address Standard IP address e.g., Table 5-21 SNMP Parameters Figure 5-34 SNMP Parameters Configuration Instruction Manual Revision 01 Page 5-32

67 Web GUI UBS Ltd DTX 1200U Transmitter System Time The System Time page allows the user to set the system time. Item Option Year Range: Month Range: Day Range: Hour Range: Minute Range: Second Range: Table 5-22 System Time Parameters Figure 5-35 System Time Configuration Instruction Manual Revision 01 Page 5-33

68 Web GUI UBS Ltd DTX 1200U Transmitter Heartbeat Time The transmitter has the capability to periodically send Heartbeat alarms and traps in order to show that it is still operating and that communication is still active. The user can set the Heartbeat Hours Start, Heartbeat Minute Start and repetition frequency for the heartbeat (Heartbeat Pace). Item Option Heartbeat Hour Start Range: Heartbeat Minute Start Range: Heartbeat Pace Range: Table 5-23 Heartbeat Time Parameters Figure 5-36 Heartbeat Time Configuration Instruction Manual Revision 01 Page 5-34

69 Web GUI UBS Ltd DTX 1200U Transmitter System Reset The transmitter can be reset by setting the Modulator Reset pull down box to On and selecting Submit. Figure 5-37 System Reset User Configuration The User Configuration page allows the user to specify the address of the RS485 port used for machine-tomachine communication. This value should not be changed as the modulator is factory configured to communicate with the HPA. Figure 5-38 User Configuration Instruction Manual Revision 01 Page 5-35

70 Web GUI UBS Ltd DTX 1200U Transmitter Download Config File(s) By clicking on the Download Config File(s) box, the user can download the Modulator Parameter file. Once the parameter/file is selected, an operating system pop-up window will prompt the user to save the file on their system. There are 3 different pop-up windows for Status, Config, and Modulator Parameter files. Figure 5-39 Download Selection Figure 5-40 Download Pop-Up Instruction Manual Revision 01 Page 5-36

71 Web GUI UBS Ltd DTX 1200U Transmitter Upgrade and Files Upload The Upgrade and Files Upload page allows the user to upgrade system software components such as: Modulator FPGA Modulator Application (Linux Kernel included) Up-converter Software The first step in the upgrade process is the selection of the proper upgrade file using the Browse button see Figure Once the file is selected, click on Start Download to initiate the upgrade process. Please note that the Web server is a single threaded server which only allows one connection at a time. Therefore if the upgrade is performed via a phone line, the file transfer can take 10 minutes depending on the connection speed and file size. The contents of the pop-up dialog will be blank. It will only start showing the upgrade information when the file is completely transferred. The upgrade file contains all the information required to define the component which is being upgraded. Figure 5-41 Software Upgrade As the upgrade starts a pop-up dialog will appear with the current upgrade process information. Figure 5-42 Upgrade Begin Pop-Up Instruction Manual Revision 01 Page 5-37

72 Web GUI UBS Ltd DTX 1200U Transmitter Once the upgrade is complete the pop up dialog will display a corresponding message. Figure 5-43 Upgrade Complete Pop-Up List Uploaded Files The List Uploaded Files page provides a list of uploaded files on the modulator. Figure 5-44 List Uploaded Files Instruction Manual Revision 01 Page 5-38

73 CLI UBS Ltd DTX 1200U Transmitter 6 CLI (Command Line Interface) 6.1 Introduction The DTX 1200U transmitter can be controlled and monitored from the Command Line Interface (CLI) in addition to the Web GUI. The CLI is accessible from the USB port via a HyperTerminal session or from the Ethernet port via Telnet or HyperTerminal sessions. 6.2 Using the USB Port to Access the CLI The transmitter must be connected to a laptop PC using a USB-to-USB cable. The cable will require a USB Type B connector to mate with the transmitter USB port, while the other connector has to mate with the laptop PC USB port. Open a HyperTerminal (or HyperACCESS depending on the operating system) session on the laptop PC and set the parameters as shown below. Figure 6-1 Com Settings Instruction Manual Revision 01 Page 6-1

74 CLI UBS Ltd DTX 1200U Transmitter 6.3 Using the Ethernet Port to Access the CLI The transmitter can be connected directly to a laptop PC or through a hub/switch using an RJ-45 straight-through cable. The transmitter and laptop PC must be configured to be on the same IP network so that a connection can be established. A Telnet client can be opened from the Start/Run button on the laptop PC. Enter the IP address assigned to the transmitter followed by the number 26 see below. Figure 6-2 Starting the Telnet Session A HyperTerminal session can also be used to access the CLI through the Ethernet port see Figure 6-1 Com Settings 6.4 CLI Login Procedure 1. Once the connection has been established, press enter to get to the login prompt. 2. Enter the password and press enter. Note: The password is admin by default, but can be changed through the Web GUI, CLI or SNMP. 3. After the password has been verified, the main menu will appear. Figure 6-3 Telnet Login Prompt Instruction Manual Revision 01 Page 6-2

75 CLI UBS Ltd DTX 1200U Transmitter 6.5 CLI Menu System The CLI contains a three level menu system where system parameters can be viewed and changed Navigation Each menu has been assigned a numeric value for navigation purposes. To navigate through the CLI menu system, enter the number assigned to the desired menu. Depending on the menu accessed, the user may have the option to enter a sub-menu, or change a system parameter. The following menu prompts are available for navigation and for changing system parameters: Enter Selection allows the user to change menus or exit the CLI Enter New Value allows the user to change a system parameter At the Enter Selection prompt, the user may also use the following keys to navigate or exit the CLI menu system: r return to the previous menu e exit the CLI If the user accesses the Enter New Value prompt by mistake or decides that they do not want to change a parameter, the prompt can be exited without making a parameter change. Simply clear all alphanumeric parameters and press enter. See the following example below: Current Value: Broadcast Range : 0. Broadcast 1. Manual 2. Standby Enter New value: No Changes Parameter Values In some cases, such as entering the Guard Interval or Coderate, the selectable parameters have been assigned a numeric value. This allows the user to change the parameter by simply entering the number assigned to a different parameter. In other cases, such as entering the modulator IP address or Site Information, the user can enter a range of alphanumeric characters. All parameter changes are made at the Enter New Value prompt. Instruction Manual Revision 01 Page 6-3

76 CLI UBS Ltd DTX 1200U Transmitter Menu Tree The CLI Menu tree is listed below with a total of 3 levels. Main Menu: 1. Status 2. Config 3. Alarms 4. NMS Users 5. System Parameters 6. Display Alarms 7. Firmware Upgrade r. Return to previous menu e. Exit CLI Enter selection: Status Menu Status: 1. Global Status 2. GPS Status 3. Satellite Receiver 4. Adaptive Precorrector r. Return to previous menu e. Exit CLI Enter selection : <Global Status> submenu This sub-menu will display a complete list of transmitter status parameters, similar to Figure 5-2 and Figure 5-3. <GPS Status> submenu This sub-menu will display the GPS status, similar to Figure 5-6. <Adaptive Precorrector> submenu This sub-menu will display the Adaptive Precorrector status, similar to Figure 5-9. Instruction Manual Revision 01 Page 6-4

77 CLI UBS Ltd DTX 1200U Transmitter Config Menu The Config menu allows the user to access a number of sub-menus used to edit the modulation and RF parameters. Please refer to Section 9 Transmitter Parameters for the Config Menu structure and parameter values. Config: 1. HPA Transmitter 2. Modulator Mode 3. Transmission 4. Input 5. Output 6. Non-Linear Precorrector 7. Linear Precorrector 8. Adaptive Precorrector 9. Manual HPA Control 10. Site 11. GPS 12. Satellite Receiver r. Return to previous menu e. Exit CLI Enter selection : Alarms Menu The Alarms menu allows the user to access a number of sub-menus used to view and edit the transmitter alarm settings. Please refer to Section 9 Transmitter Parameters for the Alarms Menu structure and parameter values. Alarms: 1. Alarm Properties 2. Clear Logs r. Return to previous menu e. Exit CLI Enter selection : Instruction Manual Revision 01 Page 6-5

78 CLI UBS Ltd DTX 1200U Transmitter NMS Users Menu The NMS Users menu sets the parameters required for an individual user to establish communications with the modulator via a SNMP Network Management System (NMS). From the User Properties menu, each NMS user can be configured with a user name, password, Cryptographic Hash Function authentication type (SHA, MD5, none) and Data Encryption mode (DES, AES, none) plus encryption password. Please refer to Section 9 Transmitter Parameters for the NMS Users Menu structure and parameter values. NMS Users: 1. Alarm Properties 2. Clear Logs r. Return to previous menu e. Exit CLI Enter selection : System Parameters Sub-menu The System Parameters menu displays the modulator access control, network and SNMP parameters. It is also used for system reset and upgrades. Please refer to Section 9 Transmitter Parameters for the System Parameters Menu structure and parameter values. System Parameters: 1. Identification 2. Access Control 3. Network Parameters 4. SNMP Parameters 5. System Time 6. Heartbeat Time 7. System Reset 8. User Configuration r. Return to previous menu e. Exit CLI Enter selection: Display Alarms This selection will display all the alarms currently active. If there are no active alarms, the system will return to the previous menu. Firmware Upgrade This Sub-menu allows the user to enter a URL address from which the transmitter can obtain a firmware upgrade. Enter URL: Instruction Manual Revision 01 Page 6-6

79 Front Panel Interface UBS Ltd DTX 1200U Transmitter 7 Front Panel Interface 7.1 Introduction The front panel touch screen LCD system includes both Status Displays where important parameters are prominently displayed and the three-level Config Menu system where system parameters can be configured. The display has sections: the Status Indicators, the Status Display and the Navigational Controls (virtual buttons). A picture of the touch screen LCD is shown below. Figure 7-1 Transmitter Touch Screen LCD The transmitter touch screen LCD offers the same access as the Web GUI (normal access level only) with the obvious exception of files download, file listing and system upgrade utilities of the Web GUI (Sections to ). 7.2 Status Indicators The front panel touch screen LCD includes three (3) status indicators Power The Power indicator will turn green when the modulator touch screen LCD becomes active (75 seconds after start up). Alarm The Alarm indicator will turn red when any of the alarm conditions are active. Unlocked The Unlocked indicator will turn red when the transmitter modulator board fails to synchronize to the incoming transport stream. Instruction Manual Revision 01 Page 7-1