Pinout for Landis and Gyr to Epad1 / PC
| Flat Cable Color | Signal Name | Signal Description | RJ12 Pin Number | DB9 Epad1 / PC Pin Number |
| Gray | CTS | Clear To Send | 1 | 8 |
| Black | TX | Transmit Data | 2 | 3 |
| Red | GND | Ground | 3 | 5 |
| Green | DTR | Data Terminal Ready | 4 | 4 |
| Yellow | RX | Receive Data | 5 | 2 |
| Blue | DSR | Data Set Ready | 6 | 6 |