Convert the MOD/EXP port on the sensorProbeX+ and sensorProbe2+ from an RJ45 into 2 wire serial cable. Comes equipped with an RS485 Modbus and Expansion port. When using this RJ45 port to connect Modbus appliances, the Modbus to SNMP Adapter makes it easier to connect a 2 wire serial bus cable to the RJ45 port, converting the RJ45 connector into a 3 pin terminal block connection