DB9-F pinout - sensors
RBR smart sensors use RS-232 patch cables for connecting to your computer and power supplies. Depending on the ordered configuration, your patch cable may have an embedded converter and either a USB connector or a DB9-F connector.
Refer to RBR Cable Guide 0004897revG.pdf for available options.
| Pin No. | RS-232 (0011822) |
| 1 | N/C | |
| 2 | From the instrument (Tx) | |
| 3 | Into the instrument (Rx) | |
| 4 | N/C | |
| 5 | Drain/Ground | |
| 6 | Ground | |
| 7 | Auxiliary | |
| 8-9 | N/C |
