Contents
Chapter 7 – ISDN Interfaces
vi Strata CTX I&M 06/04
ASTU – Standard Telephone Interface Unit (CTX100 only) .............................................................6-4
ASTU Installation .........................................................................................................................6-4
ASTU1 Wiring .............................................................................................................................6-4
BDKU/BDKS – Digital Telephone Interface Unit .............................................................................6-7
BDKU Hardware Options ............................................................................................................6-7
BDKS ............................................................................................................................................6-7
BDKU Installation ........................................................................................................................6-7
BIOU – Option Interface Units ...........................................................................................................6-9
BIOU Installation .........................................................................................................................6-9
BSTU/RSTU – Standard Telephone Interface Unit ..........................................................................6-11
R48S -48 Volt Supply Subassembly Installation .......................................................................6-11
BSTU/RSTU Installation ............................................................................................................6-11
BVPU – Internet Protocol (IP) Interface Unit ...................................................................................6-15
BVPU Configuration ..................................................................................................................6-15
BVPU Installation .......................................................................................................................6-15
BWDKU1A – Digital Telephone Interface Unit ..............................................................................6-17
BWDKU1A Installation .............................................................................................................6-17
Programming .....................................................................................................................................6-18
PDKU2 – Digital Telephone Interface Unit ......................................................................................6-19
PDKU2 Hardware Options .........................................................................................................6-19
PDKU2 Installation ....................................................................................................................6-19
RCIU1, RCIU2, RCIS – Caller ID Interface .....................................................................................6-20
RCIS PCB ...................................................................................................................................6-20
RCIU1/RCIS or RCIU2/RCIS Installation .................................................................................6-20
RCOU3A, RCOS3A – Four-Circuit Loop Start CO Line Interface Unit .........................................6-22
RCOS Installation (Internal Option) ...........................................................................................6-22
RCOU Installation ......................................................................................................................6-25
RDDU – Direct Inward Dialing Line Interface Unit ........................................................................6-28
RDDU Installation ......................................................................................................................6-28
RDSU – Digital/Standard Telephone Interface Unit ........................................................................6-30
Installing R48S Ring Generator (Internal Option) .....................................................................6-30
Installing RSTS (Internal Option) ..............................................................................................6-30
RDSU Installation .......................................................................................................................6-30
RDTU2 – T1 Interface Unit ..............................................................................................................6-32
REMU2A – Tie Line Unit .................................................................................................................6-32
REMU2A and REMU Installation .............................................................................................6-32
PEMU Installation ......................................................................................................................6-32
RGLU2 – Loop/Ground Start CO Line Interface Unit .....................................................................6-36
RGLU2 Installation ....................................................................................................................6-36
RMCU/RCMS – E911 CAMA Trunk Direct Interface ....................................................................6-38
RCMS Subassemblies Installation ..............................................................................................6-38
RMCU Installation .....................................................................................................................6-39
Network Requirements ......................................................................................................................6-42
Chapter 7 – ISDN Interfaces
PRI Overview ......................................................................................................................................7-1
BRI S/T Overview ...............................................................................................................................7-1
BRI U Overview .................................................................................................................................7-1
Strata CTX ISDN Reference Model .............................................................................................7-2