Common names: EIA-449, RS-449, ISO 4902
Secondary (auxilary) channel
(at the Computer)
| Pin | Name | RS232 | V.24 | Dir | Description |
|---|---|---|---|---|---|
| 1 | n/a | 101 |  |
Shield | |
| 2 | SSR | SRR | 122 |  |
Secondary Receiver Ready |
| 3 | SSD | SSD | 118 |  |
Secondary Send Data |
| 4 | SRD | SRD | 119 | |
Secondary Receive Data |
| 5 | SG | SG | 102 | |
Signal Ground |
| 6 | RC | RC | 102b | |
Receive Common |
| 7 | SRS | SRS | 120 | |
Secondary Request Tuter) relative DCE (Scanner). < |