J6 Eia-530 Connector (Db-25F); Table 3-5. J6 Eia-530 Connector (Db-25F) Pinout - Comtech EF Data SLM-5650B Installation And Operation Manual

Pin #
10 EIA-422 Transmit Handover Sync "B", Input
23 EIA-232 Clear to Send
11 EIA-232 Receive Data
24 EIA-232 Request to Send
12 EIA-232 Transmit Data
25 EIA-422 Transmit Handover Control "A", Input
13 EIA-422 Transmit Handover Control "B", Input
* For EIA-485 2-Wire Operation
•
Only two wires are required
•
Tie pins 8 and 22 together (both +)
•
Tie pins 9 and 20 together (both -)

3.3.3 J6 EIA-530 Connector (DB-25F)

Pin #
1
14
2
15
3
16
4
17
5
18
6
19
7
20
8
21
Rear Panel Connectors and Pinouts
Signal Function
This is a female Type 'D' 25-pin (DB-25F) connector that conforms to the
EIA-530 pinout for EIA-422 operation only.

Table 3-5. J6 EIA-530 Connector (DB-25F) Pinout

Ground
SD_B
SD_A
ST_A
RD_A
RD_B
RS_A
RT_A
CS_A
MOD FLT OC
DM_A
RS_B
Ground
Not Used
RR_A
DMD FLT OC
Name
3–5
SLM-5650B Satellite Modem
Revision 2
Name
THS B
232 CTS
232 Rx Data
232 RTS
232 Tx Data
THC A
THC B
MN-SLM-5650B