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L30 LINE CURRENT DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL
PILOT CHANNEL COMMUNICATIONS
CHAPTER 3: INSTALLATION
3
Figure 3-44: Two-channel two-clock RS422 interface connections
3.4.6 RS422 and fiber interface
The following figure shows the combined RS422 plus fiberoptic interface configuration at 64 K baud. The 7L, 7M, 7N, 7P,
and 74 modules are used in two-terminal with a redundant channel or three-terminal configurations where channel 1 is
employed via the RS422 interface (possibly with a multiplexer) and channel 2 via direct fiber.
AWG 20-24 twisted shielded pair is recommended for external RS422 connections and ground the shield only at one end.
For the direct fiber channel, address power budget issues properly.
Figure 3-45: RS422 and fiber interface connection
The connections shown in the figure are for multiplexers configured as data communications equipment (DCE) units.
3.4.7 G.703 and fiber interface
The following figure shows the combined G.703 plus fiberoptic interface configuration at 64 kbps. The 7E, 7F, 7G, 7Q, and
75 modules are used in configurations where channel 1 is employed via the G.703 interface (possibly with a multiplexer)
and channel 2 via direct fiber. AWG 24 twisted shielded pair is recommended for external G.703 connections connecting
the shield to pin 1a at one end only. For the direct fiber channel, address power budget issues properly. See previous
sections for details on the G.703 and fiber interfaces.
When using a laser interface, attenuators can be necessary to ensure that you do not exceed
maximum optical input power to the receiver.
When using a laser interface, attenuators can be necessary to ensure that you do not exceed the
maximum optical input power to the receiver.
Содержание L30
Страница 10: ...x L30 LINE CURRENT DIFFERENTIAL SYSTEM INSTRUCTION MANUAL TABLE OF CONTENTS ...
Страница 14: ...1 4 L30 LINE CURRENT DIFFERENTIAL SYSTEM INSTRUCTION MANUAL FOR FURTHER ASSISTANCE CHAPTER 1 INTRODUCTION 1 ...
Страница 126: ...3 68 L30 LINE CURRENT DIFFERENTIAL SYSTEM INSTRUCTION MANUAL CONNECT TO D400 GATEWAY CHAPTER 3 INSTALLATION 3 ...
Страница 214: ...4 88 L30 LINE CURRENT DIFFERENTIAL SYSTEM INSTRUCTION MANUAL FLEXLOGIC DESIGN USING ENGINEER CHAPTER 4 INTERFACES 4 ...
Страница 582: ...7 16 L30 LINE CURRENT DIFFERENTIAL SYSTEM INSTRUCTION MANUAL TARGETS MENU CHAPTER 7 COMMANDS AND TARGETS 7 ...
Страница 598: ...9 6 L30 LINE CURRENT DIFFERENTIAL SYSTEM INSTRUCTION MANUAL TESTING CHAPTER 9 COMMISSIONING 9 ...
Страница 622: ...10 24 L30 LINE CURRENT DIFFERENTIAL SYSTEM INSTRUCTION MANUAL FAULT LOCATOR CHAPTER 10 THEORY OF OPERATION 10 ...
Страница 670: ...A 18 L30 LINE CURRENT DIFFERENTIAL SYSTEM INSTRUCTION MANUAL FLEXANALOG ITEMS APPENDIX A FLEXANALOG OPERANDS A ...
Страница 678: ...C 6 L30 LINE CURRENT DIFFERENTIAL SYSTEM INSTRUCTION MANUAL COMMAND LINE INTERFACE APPENDIX C COMMAND LINE INTERFACE C ...
Страница 682: ...D 4 L30 LINE CURRENT DIFFERENTIAL SYSTEM INSTRUCTION MANUAL REVISION HISTORY APPENDIX D MISCELLANEOUS D ...
Страница 686: ...iv L30 LINE CURRENT DIFFERENTIAL SYSTEM INSTRUCTION MANUAL ABBREVIATIONS ...