Alarms Connector - 15 Pin 'D' Type Male; Table 10-2. Alarms Connector - 15 Pin 'D' Type Male - Comtech EF Data CIM-550 Installation And Operation Manual

CiM-550 IP Enabled Satellite Modem
Connector Pinouts
Pin Generic Signal
Description
17 Receive Clock A
23 External Carrier Off
(EIA-232 '1' or TTL 'low' )
24 Transmit Clock A
Notes: 1
2
3
4
10.2 A C
LARMS
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
Note: 'Normally Open' refers to the NON-FAIL state
Direction
Modem to DTE
DTE to Modem
DTE to Modem
Receiver ready is an EIA-232-level control signal on a V.35 interface.
DO NOT connect signals to pins which are not shown - these pins are reserved for
use by the redundancy system.
'B' signal lines are not used for EIA-232 applications.
For X.21 operation, use the EIA-422 pins, but ignore Receive Clock if the Modem
is DTE, and ignore Transmit clocks if the Modem is DCE.
- 15 P
ONNECTOR

Table 10-2. Alarms Connector - 15 Pin 'D' Type Male

Description
Ground
Receive AGC voltage
Receive Q sample (for constellation display)
Unit Fault Relay – Common
Unit Fault Relay – Normally Open
Transmit Traffic Relay - Normally Closed
Receive Traffic Relay - Common
Receive Traffic Relay - Normally Open
External Carrier Off input
---- No Connection ----
Receive I sample (for constellation display)
Unit Fault Relay – Normally Closed
Transmit Traffic Relay – Common
Transmit Traffic Relay - Normally Open
Receive Traffic Relay - Normally Closed
EIA-422/ V.35
EIA 530
RT A SCR A
- -
TT A SCTE A
'D' T M
IN YPE ALE
112
Rev. 2
CD/CIM550.IOM
EIA-232 Circuit
No
DD 115
- -
DA 113