RS-422
D-Sub 9 pin plug connector
Product side:
|
Pin No. |
RS-422 |
||
|---|---|---|---|
|
Signal name |
Direction |
Description |
|
|
1 |
TxD- |
Output |
Send data - |
|
2 |
TxD+ |
Output |
Send data + |
|
3 |
RxD+ |
Input |
Receive data + |
|
4 |
RxD- |
Input |
Receive data - |
|
5 |
SG |
- |
Signal ground (not isolated) |
|
6 |
NC |
- |
No connection |
|
7 |
NC |
- |
No connection |
|
8 |
NC |
- |
No connection |
|
9 |
NC |
- |
No connection |
|
Shell |
FG |
- |
Frame ground (common with SG) |
Recommended jack screw is #4-40 (UNC).