Comtech EF Data LPOD - Theory of Operation and Block Diagrams

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LPOD Outdoor Amplifier / Block Up Converter (BUC) Revision 9

Introduction MN-LPOD

1–4

1.4 Theory of Operation

1.4.1 SSPA Block Diagrams

See Figure 1-2 and Figure 1-3 for the LPOD block diagrams. The major components of an LPOD

unit are:

• SSPA Module

• Cooling System

• Monitor and Control (M&C)

• Power Factor Corrected Power Supply

Figure 1-2. LPOD PS 1/1.5 Block Diagram

Main Page

Default Chapter1
- Installation and Operation Manual1
- Table of Contents11
Table of Contents12
Tables15
Figures16
Preface19
- About this Manual19
- Related Documents19
- Disclaimer19
- Reporting Comments or Suggestions Concerning this Manual19
  - B C Onventions and References20
- Patents and Trademarks20
- Warnings, Cautions, and Notes20
- Examples of Multi-Hazard Notices20
- Recommended Standard Designations20
- Metric Conversion21
Getting Help24
- Contacting Comtech EF Data24
- Returning a Product for Upgrade or Repair25
Chapter 1. Introduction27
Overview27
- Figure 1-1. Comtech EF Data LPOD Outdoor Amplifiers / Bucs27
Functional Description28
Features28
- The Solid-State Advantage28
- Enhanced Standard Features28
- Built-In Redundancy Controller28
- Smart BUC" Functionality29
- Data Logging Capability29
- Optional Internal 10 Mhz Reference29
- Optional LNB Support29
Theory of Operation30
- SSPA Block Diagrams30
- Figure 1-2. LPOD PS 1/1.5 Block Diagram30
- SSPA Module31
- Figure 1-3. LPOD PS 2 Block Diagram31
- Cooling System32
- Monitor and Control (M&C)32
- LNB Operation32
- Power Supply32
- Block up Converter (BUC) Input33
Summary of Specifications34
- Characteristics34
- Optional Internal Reference35
- Optional LNB Bias / Reference35
- Environmental36
- Physical36
Dimensional Envelopes37
- LPOD PS 1 Dimensional Envelopes38
- Figure 1-4. LPOD PS 1 C-Band Dimensional Envelope (Coax Output)38
- Figure 1-5. LPOD PS 1 C-Band Dimensional Envelope (Waveguide Output)39
- Figure 1-6. LPOD PS 1 X-Band Dimensional Envelope40
- Figure 1-7. LPOD PS 1 Ku-Band Dimensional Envelope41
- LPOD PS 1.5 Dimensional Envelopes42
- Figure 1-8. LPOD PS 1.5 C-Band Dimensional Envelope (DC Option)42
- Figure 1-9. LPOD PS 1.5 X-Band Dimensional Envelope43
- Figure 1-10. LPOD PS 1.5 Ku-Band Dimensional Envelope44
- LPOD PS 2 Dimensional Envelopes45
- Figure 1-11. LPOD PS 2 C-Band Dimensional Envelope45
- Figure 1-12. LPOD PS 2 X-Band Dimensional Envelope46
- Figure 1-13. LPOD PS 2 Ku-Band Dimensional Envelope47
- Overview49
- Figure 2-1. LPOD PS 1 Connectors50
- Figure 2-2. LPOD PS 1.5 Connectors50
- Figure 2-3. LPOD PS 2 Connectors50
Chapter 2. System Connections, Installation and Startup51
Interface Connectors51
- 2.2.1 Connector 'J1 | LBAND IN' or 'J1 | Tx in51
- 2.2.2 Connector 'J2 | RF out51
- Table 2-1. 'J2 | RF OUT' Interface Type51
- Connector 'J3 | POWER IN' (AC Power Mains)52
- Connector 'J6 | COM1' (Remote Communications and Discrete Control Port)55
- Table 2-8. LPOD 'J6 | COM1' Pin Assignments55
- Connector 'J9 | OUTPUT SAMPLE' (PS 2 Only)56
- Connectors 'J10 | MODEM Rx' and 'J11 | LNB' (Optional Interfaces)56
- 2.2.8 Ground Connector56
- Figure 2-4. LPOD Ground Connectors56
Standalone Installation of the LPOD57
Turning on the LPOD57
- Figure 2-5. PL/12319-1 Universal Pole Mounting Kit58
- Figure 2-6. KT-0000095 LPOD PS 1/PS 1.5 Single Unit Mounting Kit59
- Figure 2-7. KT-0000125 LPOD PS 2 Single Unit Mounting Kit60
- Figure 2-8. KT-0020524 LPOD PS 2 Single Unit Shelf Style Mounting Kit61
Chapter 3. Updating Firmware63
Introduction63
Getting Started: Preparing for the Firmware Download64
Downloading and Extracting the Firmware Update69
Performing the FTP Upload Procedure71
Chapter 4. Ethernet-Based Remote Product Management73
- Introduction73
- Ethernet Management Interface Protocols74
SNMP Interface74
- 4.3.1 Management Information Base (MIB) Files74
- 4.3.2 SNMP Community Strings75
- 4.3.3 SNMP Traps75
Telnet Interface78
- 4.4.1 Using Hyperterminal for Telnet Remote Control Operation78
Web Server (HTTP) Interface80
- 4.5.1 Enabling the Web Server Interface80
- 4.5.2 User Login81
- 4.5.3 Web Server Interface - Operational Features82
- Web Server Interface - Web84
Chapter 5. Serial-Based Remote Product Management109
Overview109
Key Operational Parameters109
- RF Input Level109
- Attenuator Control110
- Mute Control110
- Faults110
- Power Detector112
- Some Common Commands112
- End-Of-Life Commands112
Remote Control Protocol and Structure113
- Eia-485113
- Basic Protocol114
- Eia-232114
- Packet Structure114
Remote Commands and Queries118
Appendix A. 1:1 Redundancy145
LPOD Redundancy Operation Overview145
1:2 Redundancy Mode145
1:1 Redundancy Mode145
- 1:1 Redundant System Setup (Using a Single Ethernet Interface147
- Troubleshooting Connectivity Issues148
- Applicable Redundancy Commands149
Serial-Based Monitor and Control150
- Figure A-1. Serial-Based M&C Using CEFD Kit KT-0020518150
Ethernet-Based Monitor and Control151
- Figure A-2. Ethernet-Based M&C Using CEFD Kit KT-0000203151
1:1 Redundancy System Cabling and Installation152
- Figure A-3. Typical LPOD 1:1 Redundancy System Cabling Schematic-153
Redundancy System Assembly Kits154
- Common Kits155
- A.7.1 Common Kits155
- Table A-1. Parts List for KT-0000116 LPOD Rx Splitter / Cable Kit155
- Figure A-5. KT-0000098 LPOD C-Band Rx Switch Kit (Assembled View)157
- Table A-2. Parts List for KT-0000098 LPOD C-Band Rx Switch Kit158
Appendix B. Cable Drawings201
B.1 Overview201
B.2 Control and Data Cables201
- Serial Interface Cable202
- Ethernet Interface Cable203
- Figure B-2. Ethernet Interface Cable (CEFD P/N CA-0000352, Part of KT-0000203)203
- 19-Pin COM Cable (100204
- Figure B-3. COM Cable , 100' (CEFD P/N CA-0000318)204
- 19-Pin COM Cable (250205
- Figure B-4. COM Cable , 250' (CEFD P/N CA-0000543)205
- Redundant Loop Cable - Rx / Tx206
  - B.2.5 Redundant Loop Cable – Rx / Tx206
  - Figure B-5. Redundant Loop Cable – Rx / Tx (CEFD P/N CA-0020657)206
- Redundant Loop Cable - Tx Only207
  - B.2.6 Redundant Loop Cable – Tx Only207
  - Figure B-6. Redundant Loop Cable –Tx Only (CEFD P/N CA-0020655)207
B.3 RF Cables208
- RF Cable (Type 'N209
- Figure B-7. 1/4" Heliax Coaxial Cable (CA/3722-X)209
Appendix C. Maintenance211
Introduction211
- C.1 Introduction211
- Figure C-1. Comtech EF Data LPOD Outdoor Amplifiers / Bucs211
Cleaning the LPOD PS-1 Heat Sinks212
- Figure C-2. LPOD Web Server Interface 'Status |Graphs' Page – Temperature Graph212
- Figure C-3. LPOD PS 1 Shroud Screw Locations213
- Figure C-5. Disconnect the Fan Power Supply214
- Figure C-6. LPOD PS 1 Heat Sink Locations214
- Figure C-7. Reconnect the Fan Power Supply214
Cleaning the LPOD PS-1.5 Heat Sinks215
- Figure C-8. LPOD PS 1.5 Shroud Screw Locations216
- Figure C-9. Remove the Fan Shroud217
- Figure C-10. Disconnect the Fan 1 / Fan 2 Power Supplies217
- Figure C-11. LPOD PS 1.5 Heat Sink Location218
- Figure C-12. Reconnect the Fan 1 / Fan 2 Power Supplies218
Cleaning the LPOD PS-2 Heat Sinks219
- Figure C-13. LPOD PS 2 Shroud Screw Locations220
- Figure C-14. Remove the Fan Shroud220
- Figure C-15. Disconnect the Fan 1 / Fan 2 Power Supplies221
- Figure C-16. LPOD PS 2 Heat Sink Locations221
- Figure C-17. Reconnect the Fan1 / Fan 2 Power Supplies222
- Revision222

Comtech EF Data LPOD - Theory of Operation and Block Diagrams

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