Comtech EF Data CDM-700 - Manual (Page 52)

CDM-700 High Speed Satellite Modem Revision 5
Connector Pinouts MN/CDM700.IOM
The pinout table for the P1 connector in Redundancy mode is as follows:
Alarm Connector Pinout P1 – Redundancy Mode
[ 1:1 (CRS-170A, CRS-180) and 1:N (CRS-300/700) ]
Pin # Description Name Direction
8 Program Relay NC PR-NC I/O
15 Program Relay NO PR-NO I/O
7 Program Relay COM PR-COM I/O
14 Clock Detect Clk Det I
6 Aux Tx Enable Red_Out_4 O
13 No Connection NC NC
5 Fused –12 VDC Output (160 mA max) -12VDC O
12 Fused +12 VDC Output (160 mA max) +12VDC O
4 Online Red_In_2 I
11 Serial Clock Red_Out_1 O
3 Serial Data Red_Out_2 O
10 Receive Serial Data – auxiliary channel Red_In_3 I
2 Transmit Serial Data – auxiliary channel Red_Out_3 O
9 Ext Carrier Off Red_In_1 I
1 Ground GND Gnd
Note : For both the Normal Mode and the CRS-170A/180 and CRS300/700 and
Redundancy Modes of operation:
•
Prior to October 2007, the relays have low voltage contacts with transient
suppressors across each pin to ground. The maximum working voltage = 18VDC
or 13VAC. The maximum current rating is 1 Amp DC or 0.5 Amp AC. The
Summary Relay combines Tx, Rx, and Unit Faults into a single relay.
•
The suppressors were removed, as of October 2007, with Framer Card S/N
071539628. The Summary Relay combines Tx, Rx, and Unit Faults into a single
relay.
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