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Optical isolation protects your devices from transient surges and ground loops on your data line. Model 485OPDR repeater adds 4,000 feet (1.2 km) and another 32 nodes to an RS-485 data circuit. By configuring one side as RS-422 and the other as RS-485, Model 485OPDR can act as a converter to allow your four wire RS-422 equipment to talk to a 2-wire RS-485 device. Model 232OPDR isolates four RS-232 data signals. LEDs indicate data transmission (232OPDR also has power-on LED). Requires external power supply not included.
DIN rail mount optically isolated repeaters
Model: Please see below