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Modbus Organization

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Acromag

903MB-0900 Discrete I/O Modules

Type:  I/O Module
Description:  12 Channel Discrete I/O (any mix) - Active Low Inputs, Sinking Outputs
Connectivity:  Modbus
Features:  Standard RS-485 Modbus-RTU Communications, Easy PC Configuration, Fast Baud Rates to 115Kbps, Compact 1" Din Rail Packaging w/ plug terminals, Low-Power, Supports any mix of input/outputs, Includes Built-In readback of output states, Self Diagnostics and LED indication, Wide Operating Temps -25 to 70C, Approvals: CE, UL, cUL CL1 Div 2 Groups ABCD.
Specifications:  903MB-0900 includes the combination of the 901MB Discrete Input and 902MB Discrete Output products in one unit. Power required is 10-36Vdc or 24Vac. Unit includes 1500Vac 3-way isolation (inputs, network, and power); 903MB-0900 Spec. Sheet