Comtech EF Data SMS-301 - Manual (Page 72)

Theory of Operation SMS-301 Redundancy Switch
4-6 Rev. 3
Table 4-2. Tributary 1 Data (J1)
Pin No. Name Function
1 CTS422A1 EIA-422, Clear-to-Send A (-)
2, 5, 11 GND Ground
3 TC422B-1 EIA-422, TX Clock B (+)
4 TD422A-1 EIA-422 TX Data A (-)
6 TD232-1 EIA-232 TX Data
9 CTS422B1 EIA-422 Clear-to-Send B (+)
10 TC422A-1 EIA-422 TX Clock A (-)
12 TD422B-1 EIA-422 TX Clock B (+)
13 CTS232-1 EIA-232 Clear-to-Send
14 TC232-1 EIA-232 TX Clock
Table 4-3. Tributary 2 Data (J2)
Pin No. Name Function
1 CTS422A2 EIA-422, Clear-to-Send A (-)
2, 5, 11 GND Ground
3 TC422B-2 EIA-422, TX Clock B (+)
4 TD422A-2 EIA-422 TX Data A (-)
6 TD232-2 EIA-232 TX Data
9 CTS422B2 EIA-422 Clear-to-Send B (+)
10 TC422A-2 EIA-422 TX Clock A (-)
12 TD422B-2 EIA-422 TX Clock B (+)
13 CTS232-2 EIA-232 Clear-to-Send
14 TC232-2 EIA-232 TX Clock
Table 4-4. Tributary 3 Data (J3)
Pin No. Name Function
1 CTS422A3 EIA-422, Clear-to-Send A (-)
2, 5, 11 GND Ground
3 TC422B-3 EIA-422, TX Clock B (+)
4 TD422A-3 EIA-422 TX Data A (-)
6 TD232-3 EIA-232 TX Data
9 CTS422B3 EIA-422 Clear-to-Send B (+)
10 TC422A-3 EIA-422 TX Clock A (-)
12 TD422B-3 EIA-422 TX Clock B (+)
13 CTS232-3 EIA-232 Clear-to-Send
14 TC232-3 EIA-232 TX Clock