Feature:1. This module uses RS485 communication interface, come with 32channel switch input2. Quick response, output response speed <1ms, input refresh rate is 200Hz, baud rate support 600~1152003. RS485 baud rate is optional from 600, 1200, 2400, 4800, 9600, 19200, 38400, 1152004. Station number can be changed from 01~247, very practical and convenient for you to use5. Good-quality engineering plastic material possess high mechanical strength, good heat resistance and good electrical insulationSpecification:Item Type: Relay ModulePower Supply: 18~28V DCInput Port Voltage: VCCInput Terminal Trigger Mode: GroundInput Port Trigger Current: 2mAOutput Terminal Output Mode: Pull down to comMaximum Continuous Sink Current of A Single Output Port: 2AMaximum Instantaneous Current of Output Single Port (1ms): 15ACommunication Interface: RS485; RTUMaterial: Engineering PlasticHow to Use: 1. In order to prevent the internal temperature of the machine from overheating, please use the wall-mounted installation. It is required to leave enough space above and below as a heat dissipation space.2. Leave a gap of more than 50mm between the programmable controller host and other equipment or structures. Keep away from high-voltage lines, high-voltage equipment and power equipment as much as possible.3. Avoid dust, oil, and corrosive environments; pay attention to electrostatic protection (avoid direct contact with the circuit board circuit with your hands). Adopt rail installation. .Package List:1 x Relay Module1 x User Manual