UW-8 Plug Pinout

Sensors can be connected to the UW-8 receptacle ports of NexSens X2 and G2-Series by installation of a UW-8 plug connector on the end of a sensor cable. The pinout for the UW-8 plug connectors is as follows:

UW8 Plug Pinout

Figure 1: NexSens UW-8 plug pinout.


Pin #SensorBUS SignalWire Color
1RS-232 Tx*Orange
3RS-232 Rx*Yellow
45V PowerWhite
512V PowerRed
7RS-485 BBlue
8RS-485 AGreen

*RS-232 transmit/receive is labeled from the data logger’s perspective (should be wired to sensor’s receive/transmit, respectively).

UW-8 plug connectors are usually factory installed onto sensor cables (part number UW-CON). This ensures that all signal wires are connected to the appropriate pins, and the connectors are sealed with epoxy to provide fully waterproof connections. While this is critical for use on buoys (X2-CB, X2-SDL data loggers) and in other wet environments, users may in some cases choose to install UW Field Wireable Plugs (part number UW-FWP).