Radyne OM20 Specifications download pdf (Page 66)

DMD1050 Satellite Modem Board Rear Panel Interface

4.4.5 TERMINAL - Factory use only

4.4.6 MIL-188-114A (J2) EIA-530 Port RS-422

See Appendix E for the manufacturer part number for this connector.

Table 4-3. MIL-188-114A Port (RS-422) 26-Pin Dual Row Male Header (J2)

Pin No. Signal Name Signal Direction

1 Ground --- ---

2 Send Data B (+) SD-B Input

3 Send Data A (-) SD-A Input

4 Send Timing A (-) ST-A Output

5 Receive Data A (-) RD-A Output

6 Receive Data B (+) RD-B Output

7 Request To Send A (-) RS-A Input

8 Receive Timing A (-) RT-A Output

9 Clear To Send A (-) CS-A Output

10 Modulator Fault - Open Collector MF Output

11 Data Mode A (-) DM-A Output

12 Request To Send B (+) RS-B Input

13 Ground GND ---

14 Data Terminal Ready A (-) TR-A Input

15 Receiver Ready A (-) RR-A Output

16 Demodulator Fault DF Output

17 Receive Timing B (+) RT-B Output

18 Data Mode B (+) DM-B Output

19 Receiver Ready B (+) RR-B Output

20 Data Terminal Ready B (+) TR-B Input

21 Terminal Timing B (+) TT-B Input

22 Terminal Timing A (-) TT-A Input

23 Send Timing B (+) ST-B Output

24 Antenna AGC --- Output

25 Clear T Send B (+) CS-B Output

26 No Connect --- ---

MN-DMD1050 4–8

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Radyne OM20 Specifications Page 66