Because RFL™ and Hubbell® have a policy of continuous product improvement, we reserve the right to change designs and specifications without notice.
IMUX 2000E1 RFL Electronics Inc.
July 22, 2008 ix 973.334.3100
LIST OF ILLUSTRATIONS
Figure 2-1. Front panel of IMUX 2000 Interlligent E1 Multiplexer ....................................................................................... 1
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re 2-2. Terminal multiplexer (sample configuration)....................................................................................................... 2
Figure 2-3. Drop/insert multiplexer (sample configuration) ...................................................................................................
4
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re 2-4. Point-to-point system (example)........................................................................................................................... 5
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re 2-5. Drop/insert system (example)............................................................................................................................... 5
Figure 2-6. Front view of main shelf...............................................................................................................................
........ 7
Fig
ure 2-7. Front view of multiple repeater shelves................................................................................................................ 9
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re 2-8. Functional diagram, CM4 Common Module, Communications Control............................................................ 11
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re 2-9. The meaning of Bus A and Bus B channel module settings............................................................................... 13
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re 2-10. MA-271, MA278, MA-270R and MA-275R Module Adapters, rear panel views .......................................... 19
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e 2-11. MA-271 pinouts................................................................................................................................................ 20
Fig
ure 2-12. MA-278 pinouts................................................................................................................................................ 21
Fig
ure 2-13. MA-270R pinouts............................................................................................................................................. 22
Fig
ure 2-14. MA-275R pinouts............................................................................................................................................. 23
Fi
gure 2-15. Typical CM4 Optical Interface Adapter (OIA),
rear panel view...................................................................... 25
Figure 2-16. Functional diagram, IMUX 2000 Power Supply and Power Supply Alarm I/O module.................................. 26
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re 2-17. Typical Power Supply Alarm I/O module, rear panel view.............................................................................. 28
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re 2-18. Side view of Main or Repeater shelf, showing insertion of modules and Module Adapters............................ 29
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re 2-19. Multiplexer Front-panel switches, indicators, and jacks................................................................................... 30
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re 2-20. Front view of main shelf with door closed, showing the system status indicators ........................................... 31
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re 2-21. Overview of CM4 Groups and Functions......................................................................................................... 38
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re 2-22. Rear panel connectors, Main Shelf equipped with MA-270R Module Adapters.............................................. 43
Figure 2-23. R
ear panel connectors, Main Shelf eq
uipped with Optical Interface Adapters. ............................................... 44
Figure 2-24. Internal connections on the IMUX 2000 motherboard
(electrical E1 interface)............................................... 48
Figure 2-25. Internal connections on the IMUX 2000 motherboard (fiber optic interface) .................................................. 48
Figure 3-1. Top view of IMUX 2000 chassis showing locations of Standby and Main Common Modules............................ 1
Figure 3-2. Functional block diagram, CM4 Common Module, Redundant Swap Control..................................................... 3
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re 3-3. CM4 Module Swapping flowchart, Automatic Swap............................................................................................ 5
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re 3-4. CM4 Module Swapping flowchart, Forced Swap.................................................................................................. 5
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re 3-5. CM4 activity indicators ......................................................................................................................................... 8
Fi
gure 3-6. Front panel mode slide switch............................................................................................................................... 9
Figure 4-1. Effect of direction settings on channel modules................................................................................................... 3
Figure 4-2. Channel direction setup for trans
mit-only, transmit/receive, and receive-only channel modules......................... 4
Figure 5-1. Location and use of setup jumpers on the MA-271 and MA-278 Module Adapters............................................
2
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re 5-2. Location and use of setup jumpers on the MA-270R Module Adapter. .............................................................. 3
Figure 5-3. Location and use of setup jumpers on MA-275R Module Adapter.....................................................................
4
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re 5-4. Location of DIP switch SW1 on typical Optical Interface Adapter...................................................................... 5
Figure 5-5. Location of jumpers on the CM4 common module..............................................................................................
7
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re 5-6. CM4 switches and indicators used to display and set functions........................................................................... 8
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re 5-7. Point-to-point system synchronized to the network which forces timing onto E1 signal................................... 11
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re 5-8. Point-to-point system internally timed from one end (not synchronized to the network)................................... 11
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re 5-9. Drop/insert system synchronized to the network................................................................................................ 12
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re 5-10. Drop/insert system internally timed from one end (not synchronized to the network)..................................... 12
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re 5-11. Point-to-point system externally timed from one end (not synchronized to the network)................................ 12
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re 5-12. Multiple systems synchronized to a common timing source ............................................................................ 13
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re 5-13. Multiple frame-synchronized systems .............................................................................................................. 15
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re 5-14. Signal flow in Common Module for various loopbacks................................................................................... 18
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re 5-15. Example of a network management terminal which is simultaneously connected to multiple IMUX............. 28
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re 5-16. Location of the alarm cut-off (ACO) switch on the Power Supply module..................................................... 40
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re 5-17. View of CM4 showing switches used in Reset-Chart procedure...................................................................... 44
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re 5-18. Overview of CM4 Groups and Functions......................................................................................................... 45