Card - Interface Duplexer
The MultiCom 351/352 is a serial duplexer that allows two devices to be connected to a single serial port on a UPS.It can be used where numerous serial connections and multiple polling of UPS are required, and is ideal for LAN networks with a firewall.
Cascading configuration giving a maximum of 4 serial communication ports
LED communication flow indicator
Firmware upgradeable via serial port