Fault Connector And Pinouts (J7); Table 3-3. Fault Connector And Pinouts (J7) - Comtech EF Data SNM-1001L Installation And Operation Manual

SNM-1001L Satellite Modem
Connector Pinouts
3.2.2

Fault Connector and Pinouts (J7)

The fault connector provides Form C contact closures for fault reporting. The three Form C
summary fault contacts, ratings 1A maximum at 24 VDC, 0.5A at 120 VAC, are
Modulator, Demodulator, and Common Equipment.
The fault interface connection is a 9-pin subminiature female D connector (J7) located on
the rear panel of the modem. Screw locks are provided for mechanical security on the
mating connector. Refer to Table 3-3 for pinout information.

Table 3-3. Fault Connector and Pinouts (J7)

Pin # Signal Function
1 Common equipment is not faulted
2
3 Common equipment is faulted
4 Modulator is not faulted
5
6 Modulator is faulted
7 Demodulator is not faulted
8
9 Demodulator is faulted
Note: A connection between the common (COM) and normally open (NO)
contacts indicates no fault.
Name
NO
COM
NC
NO
COM
NC
NO
COM
NC
3–4
Revision 1
MN/SNM1001L.IOM