Specifications

SDM-650B Satellite Modem Trojan Interface
Rev. 5 G–5
G.2 Connector Pinouts
The Asynchronous dejittered MIL-STD-188-114 interface is provided on a 37-pin female
D connector accessible from the rear panel of the modem.
Screw locks are provided for mechanical security of the mating connector.
Signal Function Name Pin #
SIGNAL GROUND SG 1, 19, 20, 37
SEND DATA SD-A 4
SD-B 22
SEND TIMING ST-A 5
ST-B 23
RECEIVE DATA RD-A 6
RD-B 24
REQUEST TO SEND RS-A 7
RS-B 25
RECEIVER TIMING RT-A 8
RT-B 26
CLEAR TO SEND CS-A 9
CS-B 27
DATA MODE DM-A 11
DM-B 29
RECEIVER READY RR-A 13
RR-B 31
TERMINAL TIMING TT-A 17
TT-B 35
STATION REF TIMING MC-A 16
MC-B 34
MODULATOR FAULT MF 3
DEMODULATOR FAULT DF 21