Specifications

Chapter 1 Overview Installation and Operation Manual
1-10 Physical Description DXC-100PSX
Figure 1-5. Narrowband Redundant
Module
D8E1T1/R
A single 50-pin (AMP 552725-1 telco-type) female receptacle is mounted on this
interface module and is used to directly interface the identical DXC-100-resident
D8E1T1 (redundant) port interface (i.e., there is no direct network interface for
redundant modules). See
9 Table 1-4 for the connector configuration and
associated pinouts.
Table 1-4. Narrowband Redundant Module Connector Configuration and Pinouts
Pin Locations Link
Transmit Receive
Reserved
Tip Ring Tip Ring
1
26 1 27 2 28 3
2 29 4 30 5 31 6
3 32 7 33 8 34 9
4 35 10 36 11 37 12
5 38 13 39 14 40 15
6 41 16 42 17 43 18
7 44 19 45 20 46 21
8 47 22 48 23 49 24
Connector pins 25 and 50 are used to provide cable present status for inter-
system cables between a given DXC-100PSX Narrowband Redundant Module and
its associated DXC-100 D8E1T1 interface module.
Broadband Primary Module, DE3T3/P
The Broadband Primary Module is designed to interface with a DXC-100-resident
protected DT3 or DE3 interface module via a set of BNC interconnection cables.
This module is used to facilitate DXC-100 commanded interface switching from
the protected module to the standby module (via latching relays). The Broadband
Primary Module must be installed in DXC-100PSX slots 1 through 6 for Broadband