Contents
Chapter 5 – ISDN Interfaces
Strata CTX I&M 10/02 v
Chapter 5 – ISDN Interfaces
PRI Overview ......................................................................................................................................5-1
BRI S/T Overview ...............................................................................................................................5-1
BRI U Overview .................................................................................................................................5-1
Strata CTX ISDN Reference Model .............................................................................................5-2
RPTU Interface Unit ...........................................................................................................................5-3
RPTU Overview ...........................................................................................................................5-3
CSU Requirements .......................................................................................................................5-3
Slot Assignments ..........................................................................................................................5-4
RPTU Installation ................................................................................................................................5-4
Cabling ..........................................................................................................................................5-7
RBSU/RBSS Interface Units .............................................................................................................5-11
Overview ....................................................................................................................................5-11
Capacity and Cabinet Slot Information ......................................................................................5-12
PS-1 Backup Power Option ........................................................................................................5-12
RBSU/RBSS Installation ............................................................................................................5-13
Modular Jack Pin Configurations ...............................................................................................5-16
RBSU/RBSS Premise Wiring Guidelines ..................................................................................5-17
Connecting RBSU to Network Side (TE-Mode) ........................................................................5-20
Connecting RBSU/RBSS Station Devices (NT-Mode) ..............................................................5-21
RBSU/RBSS Passive Bus Configurations ..................................................................................5-23
RBUU/RBUS Interface Unit .............................................................................................................5-24
RBUU Installation ......................................................................................................................5-24
RBUU/RBUS Wiring Guidelines ...............................................................................................5-27
ISDN Testing and Troubleshooting ..................................................................................................5-30
BRI-U, LT Interface Terminal Loop Back Test .........................................................................5-30
RPTU Loop-back Test ................................................................................................................5-31
Timing and Synchronization .............................................................................................................5-32
PRI/BRI Call Monitoring ..................................................................................................................5-33
Call Monitor Output for ISDN ..........................................................................................................5-34
BRI Call Monitor ........................................................................................................................5-37
Chapter 6 – T1
Channelization .....................................................................................................................................6-1
Slot Assignments .................................................................................................................................6-1
SW1 Equalizer Switch and Loop Back Jumpers (Internal Option) ..............................................6-2
RDTU Installation ........................................................................................................................6-3
Installation Guidelines ........................................................................................................................6-4
Applications .......................................................................................................................................6-5
RDTU to Network ........................................................................................................................6-5
RDTU to PBX T1 (Separated More Than 655 ft.) .......................................................................6-5
RDTU to PBX T1 (Separated Less Than 655 ft.) .........................................................................6-6
Hardware and Cabling .........................................................................................................................6-7
RDTU Cable Length Switch .........................................................................................................6-7
RDTU Loop Back Jumper Plugs ..................................................................................................6-7
RDTU Front Panel Indicators .......................................................................................................6-7
RDTU Cable Installation ..............................................................................................................6-8
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