Comtech EF Data DMD1050 User Manual
Page 70
DMD1050 Satellite Modem Board
Rear Panel Interface
MN-DMD1050
4–8
Revision 9
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
---
---