Comtech EF Data SDR-54A - Manual (Page 46)

SDR-54A Satellite Demodulator Revision 4
DEMUX Option MN/SDR54A.IOM
Table 5-7. Tributary Data Interface Connector (J6)
Rear Panel 25-Pin D Connector
J6 DEMUX T5-8
Pin # Circuit Description
1 RD422A_5 RS-422, RX DATA (-), TRIB5
14 RD422B_5 RS-422, RX DATB (+), TRIB5
2 RC422A_5 RS-422, RX CLKA (-), TRIB5
15 RC422B_5 RS-422, RX CLKB (+), TRIB5
3 RD232_5 RS-232, RECEIVE DATA, TRIB5
16 RC232_5 RS-232, RECEIVE CLOCK, TRIB5
4 RD422A_6 RS-422, RX DATA (-), TRIB6
17 RD422B_6 RS-422, RX DATB (+), TRIB6
5 RC422A_6 RS-422, RX CLKA (-), TRIB6
18 RC422B_6 RS-422, RX CLKB (+), TRIB6
6 RD232_6 RS-232, RECEIVE DATA, TRIB6
19 RC232_6 RS-232, RECEIVE CLOCK, TRIB6
7 RD422A_7 RS-422, RX DATA (-), TRIB7
20 RD422B_7 RS-422, RX DATB (+), TRIB7
8 RC422A_7 RS-422 ,RX CLKA (-), TRIB7
21 RC422B_7 RS-422, RX CLKB (+), TRIB7
9 RD232_7 RS-232, RECEIVE DATA, TRIB7
22 RC232_7 RS-232, RECEIVE CLOCK, TRIB7
10 RD422A_8 RS-422, RX DATA (-), TRIB8
23 RD422B_8 RS-422, RX DATB (+), TRIB8
11 RC422A_8 RS-422, RX CLKA (-), TRIB8
24 RC422B_8 RS-422, RX CLKB (+), TRIB8
12 RD232_8 RS-232, RECEIVE DATA, TRIB8
25 RC232_8 RS-232, RECEIVE CLOCK, TRIB8
13 GND GROUND
Table 5-8. Aggregate Data and Clock
Pin # Signal Function Name
3 Receive data inverting output (RS-422) RXDa
4 Receive data non-inverting output (RS-422) RXDb
7 Ground GND
8 Carrier detect inverting CDa
17 Receive clock inverting output (RS-422) RXCa
18 Receive clock non-inverting output (RS-422) RXCb
20 Carrier detect non-inverting output (RS-422) CDb
5-12