The Multi I/O module has programmable input and output signal contacts that provide a complete and integrated set of UPS management and monitoring protocols. This module makes it possible to connect two devices with serial ports to UPS. The RS-485 port, which supports the Modbus/Jbus protocol, is also provided on this module. It has 8 analog or digital inputs and 8 relay contact outputs with a maximum current of 3 amps with adjustable voltage of 250VAC.
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The following diagram shows how the Multi I/O module connects to the network.