Comtech EF Data SDR-54A - Manual (Page 75)

SDR-54A Satellite Demodulator Revision 4
Specifications MN/SDR54A.IOM
Table 8-10. 8-Channel Demux Specifications (Continued)
Interface Connectors:
JP1 +5 VDC power, aggregate data, I 2 C communications to
demodulator card.
JP2 Output sync and mode signals.
JP3 26-pin header, for tributary interfaces 1 through 4.
JP4 26-pin header, for tributary interfaces 5 through 8.
Unit-to-Unit Delay Variation < 10% of 1/tributary data rate for identically configured
demultiplexers. (See Note.)
Breakout Panel (UB-54) Optional 1 RU breakout panel converts interface to eight separate
15-pin ‘D” tributary interfaces.
Note: This is in addition to the delay variation of the base unit.
8.12.2 Tributary Data Connector (J3)
Table 8-11. Tributary Data Connector (J3)
JP3
Pin #
Demux T1-4
Circuit Description
1 RD422A_1 RS-422, RX DATA (-), TRIB1
2 RD422B_1 RS-422, RX DATB (+), TRIB1
3 RC422A_1 RS-422, RX CLKA (-), TRIB1
4 RC422B_1 RS-422, RX CLKB (+), TRIB1
5 RD232_1 RS-232, RECEIVE DATA, TRIB1
6 RC232_1 RS-232, RECEIVE CLOCK, TRIB1
7 RD422A_2 RS-422, RX DATA (-), TRIB2
8 RD422B_2 RS-422, RX DATB (+), TRIB2
9 RC422A_2 RS-422, RX CLKA (-), TRIB2
10 RC422B_2 RS-422, RX CLKB (+), TRIB2
11 RD232_2 RS-232, RECEIVE DATA, TRIB2
12 RC232_2 RS-232, RECEIVE CLOCK, TRIB2
13 RD422A_3 RS-422, RX DATA (-), TRIB3
14 RD422B_3 RS-422, RX DATB (+), TRIB3
15 RC422A_3 RS-422, RX CLKA (-), TRIB3
16 RC422B_3 RS-422, RX CLKB (+), TRIB3
17 RD232_3 RS-232, RECEIVE DATA, TRIB3
18 RC232_3 RS-232, RECEIVE CLOCK, TRIB3
19 RD422A_4 RS-422, RX DATA (-), TRIB4
20 RD422B_4 RS-422, RX DATB (+), TRIB4
21 RC422A_4 RS-422, RX CLKA (-), TRIB4
22 RC422B_4 RS-422, RX CLKB (+), TRIB4
23 RD232_4 RS-232, RECEIVE DATA, TRIB4
24 RC232_4 RS-232, RECEIVE CLOCK, TRIB4
25 GND GROUND
26 GND GROUND
8–15