| Pin | Signal | Description |
|---|---|---|
| 1 | GND | |
| 9 | Tx | connected to +5v via 10k resistor in serial cable |
| 10 | Rx | connected to +5v via 10k resistor in serial cable |
| Pin | Signal | Description |
|---|---|---|
| 1 | GND | |
| 9 | Tx | connected to +5v via 10k resistor in serial cable |
| 10 | Rx | connected to +5v via 10k resistor in serial cable |