Auxiliary 1 Connector And Pinouts (J9); Table 3-8. Aux 1 Connector And Pinouts (J9) - Comtech EF Data SDM-300L3 Installation And Operation Manual

SDM-300L3 Satellite Modem
Connector Pinouts
3.2.5

Auxiliary 1 Connector and Pinouts (J9)

The auxiliary 1 (AUX 1) connector provides:
•
•
•
•
The faults are open collector levels that indicate a modulator or demodulator failure. A logic
"1" indicates the faulted condition.
AGC_OUT is a programmable voltage, 0 to 10V, for a receive signal level between
-25 and -60 dBm.
AUX 1 connection is a 9-pin female D connector (J9) located on the rear panel of the
modem. Screw locks are provided for mechanical security on the mating connector. Refer
to Table 3-8 for pinout information.
MOD and DEMOD (TTL) faults
Satellite clock
Satellite I&Q
Automatic Gain Control (AGC) output voltage
Table 3-8
. AUX 1 Connector and Pinouts (J9)
Pin # Signal Function
1 Satellite Clock -
2 External TX Enabled
3 Satellite Clock +
4 MODULATOR TTL Fault
5 Ground
6 RX_Q
7 DEMODULATOR TTL Fault
8 RX 1 Channel Eye
9 AGC Output
Name
SAT_CLK-
EXT_TX_EN
SAT_CLK+
MDFLTTTL
GRN
RX Q Channel Eye
DMDFLTTL
RX_1
AGC
3–12
Revision 1
MN/SDM300L3.IOM