Features 1.CONNECT 64 DEVICES IN PARALLEL: In command mode, up to 64 devices can be connected in parallel, versatile and multifunctional 2.EASILY REALIZE COMMANDS: Commands can be entered through serial hyper terminal(serial assistant) or for Poll, PCB board has good maintenance and interchangeability 3.TECHNICAL PARAMETERS: The input and output relationship can be set to various related modes through commands, the working voltage is DC 24V, and the standby current is 11MA 4.EXCELLENT PERFORMANCE: The default baud rate is 9600BPS, and the maximum data transmission and return time is 1000ms, fast and efficient 5.WITH PROTECTION FUNCTIONS: Check methods include no check, even check and odd check, with hardware reset function and TVS non surge protection Specification Item Type: RS485 Relay Module Material: PCB Working Voltage: DC 24V Standby Current: 11MA 1 relay turns on 30MA; 2 relays turn on 49MA; 3 relays open 65MA; 4 relays open 82MA Default Baud Rate: 9600BPS Baud Rate Can Be Selected By Command: 2400, 4800, 9600, 19200, 38400, 57600, 115200BPS Maximum Data Sending And Returning Time: 1000ms Check Mode: No check, even check and odd check Hardware Reset Function: Yes TVS Non Surge Protection: Yes Package List 1 x RS485 Relay Module