Chapter 1. Introduction
TDU 120e OPTION MODULES
Some of the option modules available for the TDU 120e are:
DSX-1
Provides a short haul T1 interface for operation with a
PBX (Terminal Interface).
Full Drop and Insert
Permits the dropping of data and insertion of new data into the same DS0 time slot.
This module includes a long haul
Nx56/64 serial interface
Provides a V.35 serial interface in either single or dual versions.
Voice interface
Provides 2 or 4 channels FXS/FX0/E&M.
OCU DP
Interfaces to DDS or
DSU DP
Provides two sync or async ports
Dial backup
Allows for backup of data upon network T1 failure.
U-BR1TE
Allows ISDN lines to be extended over a T1 line.
TDU 120e User Manual |