8 mil-188-114a (j19) – Comtech EF Data DMD-2050E User Manual
Page 161
DMD2050E Universal Satellite Modem
External Connections
MN-DMD2050E Revision 2
5–9
5.3.8 MIL-188-114A (J19)
Label
Description
Connector Type
MIL-188-114A J19 EIA-530 Port (RS-422) 25-pin Female D
Table 5-6. Pinouts for J19 MIL-188-114A Port 25-pin Female D Connector
Pin No. Signal Name
Signal Direction
1
Shield
---
---
2
Send Data A (-)
SD-A
Input
3
Receive Data A (-)
RD-A Output
4
Request To Send A (-)
RS-A
Input
5
Clear To Send A (-)
CS-A
Output
6
Data Mode A (-)
DM-A Output
7
Signal Ground
SGND ---
8
Receiver Ready A (-)
RR-A Output
9
Receive Timing B (+)
RT-B
Output
10
Receiver Ready B (+)
RR-B Output
11
Terminal Timing B (+)
TT-B
Input
12
Send Timing B (+)
ST-B
Output
13
Clear T Send B (+)
CS-B
Output
14
Send Data B (+)
SD-B
Input
15
Send Timing A (-)
ST-A
Output
16
Receive Data B (+)
RD-B Output
17
Receive Timing A (-)
RT-A
Output
18
Modulator Fault - Open Collector MF
Output
19
Request To Send B (+)
RS-B
Input
20
Data Terminal Ready A (-)
TR-A
Input
21
Demodulator Fault
DF
Output
22
Data Mode B (+)
DM-B Output
23
Data Terminal Ready B (+)
TR-B
Input
24
Terminal Timing A (-)
TT-A
Input
25
No Connect
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