Auxiliary Interface Connector -J5; Smpte 310M/Ssi Defaults; Table A-36. Auxiliary Interface Connector -J5; Table A-37. Interface Defaults - Comtech EF Data SDM-2020 Installation And Operation Manual

Data Interfaces
A.7.3.5.2 Auxiliary Interface Connector –J5
This port provides input/output of the modem-specific signals. The connector is 9-pin
subminiature D female, with threaded jack nuts. Refer to for connector pinouts.
Signal Function
Demodulator Fault
Indicator
Request to Send
Modulator Fault Indication
Carrier Detect
Legend: O = Output
N/C = No Connection
A.7.4 SMPTE-310M/SSI Defaults
Refer to (Table A-37) for default settings for the interface.
A–62
Table A-36. Auxiliary Interface Connector –J5
Name
DF
RTS
MF
CD
I = Input

Table A-37. Interface Defaults

Interface Defaults
RTS Control
RTS State
Data or Clock Polarity
Frame Format
Loss of Data
Clock/Data SYNC
Auxiliary Connector Pinout
Pin # Type
1 GND Signal Ground
2 O Demodulator Summary Fault. Open
Collector. Redundancy switch
appplication
3 N/C
4 I Modulator Request to send. TX control.
TTL
5 N/C
6 O Modulator Summary Fault. Open
collector. Redundancy switch
application.
7 O Demodulator. Carrier detect. TTL
Off
Normal
Normal
188
Alarm
Correlate on data
SDM-2020 Satellite Demodulator
Comment
Rev.3