SonTek Flying Lead Wiring into A50 Junction Box
In the event of using the flying lead wires from the SonTek-SL Series current meters to wire into a NexSens A50 junction box, below is a wiring diagram for the connections between the SonTek cable and a NexSens plug to flying lead cable.
| SonTek SL-Series Signal | SonTek SL-Series Wire Color | NexSens UW-FLx Cable Wire Color** | NexSens X-Series Signal |
| RS232 Tx* | Green | Yellow | RS232 Rx* |
| RS232 Rx* | Orange | Orange | RS232 Tx* |
| Ground | Black | Black | Ground |
| SDI-12 | White | Brown | SDI-12 |
| + 12V | Red | Red | + 12V |
*Note the RS232 signals are complementary between the two devices (Tx with Rx and vice versa).
**NexSens UW Plug to Flying Lead Cable (UW-FLx) Wiring Guide