Specifications

Installation and Operation Manual Chapter 1 Overview
DXC-100PSX Physical Description 1-7
Figure 1-3. N+1 Protection Switch
Controller Module
READY
DNC
A single bi-color (green/red) LED is provided to indicate whether the controller
module is powered and operating properly. See
4 Table 1-1 for the indicator states
and associated illumination criteria.
The PSX Controller module directly interfaces the DXC-100 resident DSMC.2 or
DXNM module sets via a DB-9 (EIA-232) 38.4 kbps asynchronous serial data link.
See
5 Table 1-2 for the connector configuration and associated pinouts.
Table 1-2. PSX Controller Module Connector Configuration and Pinouts
DB-9 Pin Locations Pin Signal
5
4
3
2
1
9
8
7
6
1 DXC-100PSX Reset (current source)
2 Data (to DXC-100PSX)
3 Data (from DXC-100PSX)
4 DXC-100PSX Present (current source)
5 Ground
6 DXC-100PSX Present (current sink - active low)
7 DXC-100PSX Reset (current sink - active low)
8 –
9 –
Narrowband Primary Module, D8E1T1/P
The Narrowband Primary Module is designed to interface with a DXC-100 resident
protected D8E1T1 interface module via the attached interconnection cable. This
module is used to facilitate DXC-100 commanded interface switching from the
protected module to the standby module (via latching relays). The Narrowband
Primary Module must be installed in DXC-100PSX slots 2 through 11 as part of a
Narrowband Protection Group. The protected D8E1T1 module set must be
installed in a matching slot (slots 2 through 11) in the DXC-100 chassis.