Comtech EF Data SMS-458B - Manual (Page 34)

SMS-458B Modem Protection Switch Revision 2
Installation MN/SMS458B.IOM
2–8
Two 25-pin female D connectors provide the online status interfaces. Screw locks
provide mechanical security for the mating connector.
J4 J5
Pin # Name Name
1 Mod 1 COM Demod 1 COM
2 Mod 1 NC Demod 1 NC
3 Mod 1 NO Demod 1 NO
4 Mod 2 COM Demod 2 COM
5 Mod 2 NC Demod 2 NC
6 Mod 2 NO Demod 2 NO
7 Mod 3 COM Demod 3 COM
8 Mod 3 NC Demod 3 NC
9 Mod 3 NO Demod 3 NO
10 Mod 4 COM Demod 4 COM
11 Mod 4 NC Demod 4 NC
12 Mod 4 NO Demod 4 NO
13 to 24 No Connection No Connection
25 GND GROUND
2.3.4 Relay-Remote/Fault (J6)
This multi-pin connector provides both input and output signals. The inputs are contact
closures or logic level remote control inputs. The outputs are form-C relay contact
closure alarms for controller fault, M:N fault, and demodulator system fault.
The relay-remote input and fault status interface connects through a 25-pin female D
connector. Screw locks provide mechanical security for the mating connector.
Pin # Name
1 Controller Fault COM
2 Controller Fault NC
3 Controller Fault NO
4 Relay-Remote Input 0
5 Relay-Remote Input 1
6 Relay-Remote Input 2
7 Relay-Remote Input 3
8 Demodulator Fault COM
9 Demodulator Fault NC
10 Demodulator Fault NO
11 M:N Fault COM
12 M:N Fault NC
13 M:N Fault NO
14 to 24 No Connection
25 Ground