CMDF2-16DOR module adopts Modbus RTU standard protocol, which can be connected to a variety of PLCs, DCSs, PCSs, computers and other control systems via RS-485 interface to realize expansion of switch quantity output. Main features: 16 point switch quantity relay output mode, with 16 output status LED indication; 600-115.2Kbps optional, receive, send indicator status; switch quantity output circuit and communication circuit electrical isolation; DC 9-30V wide range power supply input, lightning protection and power reverse protection.