Comtech EF Data CDM-710G - Manual (Page 70)

CDM-710G High-Speed Satellite Modem Revision 1
Rear Panel Connector Pinouts MN-CDM710G
4–4
4.4 Utility Connections
4.4.1 P1 Alarms Connector, DB-15M
The P1 Alarms connector is a 15-Pin Type ‘D’ male interface with threaded jack
nuts. The pinout depends upon whether the unit is in the Normal or Redundancy
mode for use with the CRS-170A (L-Band) and CRS-180 (70/140 MHz) or
CRS-300 redundancy switches. The unit is put into 1:1 mode under the Config:
AUX Æ 1:1 Mask Æ Ena/Dis menu by selecting Enable. The P2 connector
pinout is as follows:
P1 Alarms Connector Pinout – Normal Mode
Pin # Description Name Direction
8
15
7
Rx Traffic (De-energized, Faulted) Note 1, 2
Rx Traffic (Energized, No Fault)
Rx Traffic
Rx-NC
Rx-NO
Rx-COM I/O
I/O
I/O
14
6
13
Tx Traffic (De-energized, Faulted) Note 1, 2
Tx Traffic (Energized, No Fault)
Tx Traffic
Tx-NC
Tx-NO
Tx-COM I/O
I/O
I/O
5
12
4
Unit Fault (De-energized, Faulted) Note 1, 2
Unit Fault (Energized, No Fault)
Unit Fault
Unit-NC
Unit-NO
Unit-Com I/O
I/O
I/O
11
3
Rx I Channel (Constellation Monitor)
Rx Q Channel (Constellation Monitor) Rx-I
Rx-Q O
O
10 No Connection NC NC
2 AGC Voltage (Rx signal level, 0-10 volts) AGC O
9 Ext Carrier Off (TTL Lo = Mute, Open = Tx) EXT-OFF I
1 Ground GND Gnd
P1 Alarms Connector Pinout – 1:N (CRS-300/710G) and 1:1 Mode (CRS-170A, CRS-180)
Pin # Description Name Direction
8
15
7
Summary Relay NC (De-energized, Faulted)
Summary Relay NO (Energized, No Fault)
Summary Relay COM
Note 1, 2
PR-NC, *
PR-NO
PR-COM I/O
I/O
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 (TTL Lo = Mute, Open = Tx) Red_In_1 I
1 Ground GND Gnd