Comtech EF Data SMS-301 - Manual (Page 74)

Theory of Operation SMS-301 Redundancy Switch
4-8 Rev. 3
Table 4-8. Tributary 7 Data (J7)
Pin No. Name Function
1 CTS422A7 EIA-422, Clear-to-Send A (-)
2,5,11 GND Ground
3 TC422B-7 EIA-422, TX Clock B (+)
4 TD422A-7 EIA-422 TX Data A (-)
6 TD232-7 EIA-232 TX Data
9 CTS422B7 EIA-422 Clear-to-Send B (+)
10 TC422A-7 EIA-422 TX Clock A (-)
12 TD422B-7 EIA-422 TX Clock B (+)
13 CTS232-7 EIA-232 Clear-to-Send
14 TC232-7 EIA-232 TX Clock
Table 4-9. Tributary 8 Data (J8)
Pin No. Name Function
1 CTS422A8 EIA-422, Clear-to-Send A (-)
2,5,11 GND Ground
3 TC422B-8 EIA-422, TX Clock B (+)
4 TD422A-8 EIA-422 TX Data A (-)
6 TD232-8 EIA-232 TX Data
9 CTS422B8 EIA-422 Clear-to-Send B (+)
10 TC422A-8 EIA-422 TX Clock A (-)
12 TD422B-8 EIA-422 TX Clock B (+)
13 CTS232-8 EIA-232 Clear-to-Send
14 TC232-8 EIA-232 TX Clock
Table 4-10. AUX Data (J9)
Pin No. Name Function
1 MCA TX Aggregate Clock
2,5,11 GND Ground
3 RT-B EIA-422, RX Timing B (+)
4 RD-A EIA-422, RX Data A (-)
6 RR-B RX Ready B (+)
7 N/C No Connection
8 MF MOD Fault
9 MCB TX Aggregate Data
10 RT-A EIA-422, RX Timing A (-)
12 RD-B EIA-422, RX Data B (+)
13 RR-A RX Ready A (-)
14 N/C No Connection
15 DF DEMOD Fault