Specifications
166119    8/31/2006 
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1  Introduction............................................................................................................................. 3 
1.1  Network Configurations ..................................................................................................... 3 
1.2  Planning ............................................................................................................................ 4 
2  Key Functions ......................................................................................................................... 5 
2.1  Multiplexer Operation ........................................................................................................ 6 
2.1.1  Multiplexer .................................................................................................................... 6 
2.1.2  Demultiplexer ............................................................................................................... 8 
2.1.3  FIFO Buffers ................................................................................................................. 8 
2.1.4  Channel Allocation / De-allocation ............................................................................... 8 
2.1.5  Management Channel .................................................................................................. 9 
2.1.6  Composite Port Operation ........................................................................................... 9 
2.1.7  Channel Port Operation ............................................................................................. 12 
2.2  System Operation ........................................................................................................... 14 
2.2.1  Configuration Management Functions ....................................................................... 14 
2.2.2  Non-volatile Parameter Storage ................................................................................. 15 
2.2.3  Null Configuration Reset ............................................................................................ 15 
2.2.4  System Reset ............................................................................................................. 16 
2.2.5  Configuration Backup and Restoral to File ................................................................ 16 
2.2.6  Configuration Copy Commands between Local and Remote Systems ..................... 16 
2.2.7  Copying the Operating Systems from a Local to Remote System ............................ 17 
2.2.8  Time and Day Clock ................................................................................................... 17 
2.2.9  Node ID Information ................................................................................................... 18 
2.2.10  Log-In, Log-Off and Change Password ..................................................................... 18 
2.3  Backup, Restoral, and Bandwidth Assignment Operations ............................................ 18 
2.3.1  Channel Failover Modes and Associated Parameters ............................................... 18 
2.3.2  Expanded Bandwidth Configuration ........................................................................... 19 
2.3.3  Redundant (or Hot Standby) Link Configuration ........................................................ 20 
2.3.4  Backup with Prioritized Channels .............................................................................. 21 
3  Hardware Installation ........................................................................................................... 29 
3.1  Main Chassis ................................................................................................................... 30 
3.1.1  AC Mains Power ........................................................................................................ 30 
3.1.2  Chassis rack-mounting .............................................................................................. 30 
3.1.3  Thermal requirements ................................................................................................ 30 
3.2  Power Supply Modules ................................................................................................... 31 
3.2.1  Power Supply Replacement ....................................................................................... 31 
3.3  Processor Card ............................................................................................................... 31 
3.3.1  Processor Card Replacement .................................................................................... 32 
3.4  Port I/O Cards ................................................................................................................. 32 
3.4.1  Port I/O Card Replacement ........................................................................................ 32 
3.5  Troubleshooting .............................................................................................................. 32 
3.5.1  Basic System Checks and Operation ........................................................................ 32 
4  User Interface ....................................................................................................................... 35 
4.1  Indicators ......................................................................................................................... 35 
4.1.1  Processor Card .......................................................................................................... 35 
4.1.2  Port I/O Card .............................................................................................................. 36 










