Mil-188-114A (J19) - Comtech EF Data DMD-2050E Installation And Operation Manual

DMD2050E Universal Satellite Modem
5.3.8

MIL-188-114A (J19)

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