EIA-530/422 Pinouts
EIA-530/422, Male DB-25 Connector
| Pin
| CCITT
| Desc.
|
| Pin
| CCITT
| Desc.
|
|---|
| 2
| 103A
| TxD-
|
| 20
| 108A
| DTE Ready-
|
| 14
| 103B
| TxD+
| 23
| 108B
| DTE Ready+
|
| 3
| 104A
| RxD-
| 6
| 107A
| DCE-
|
| 16
| 104B
| RxD+
| 22
| 107B
| DCE+
|
| 15
| 114A
| TxCLKi-
| 8
| 109A
| RLSD-
|
| 12
| 114B
| TxCLKi+
| 10
| 109B
| RLSD+
|
| 17
| 115A
| RxCLK-
| 24
| 113A
| TxCLKo-
|
| 9
| 115B
| RxCLK+
| 11
| 113B
| TxCLKo+
|
| 4
| 105A
| RTS-
| 7
| n/a
| GND
|
| 19
| 105B
| RTS+
| Shell
| n/a
| CGND
|
| 5
| 106A
| CTS-
| 25
| 142
| Test Mode
|
| 13
| 106B
| CTS+
|
|