Features Good Practicability: RS485 relay module commands can be input through the serial port hyperterminal (serial port assistant) or polling, and the commands can be easily implemented. The PCB board has good maintainability and interchangeability, which is very practical Product Parameters: The input and output relationship of the 4-channel relay module can be set to various related modes through commands, the working voltage is DC 24V, and the standby current is 11MA. Superior Performance: This DC 24V relay module has superior performance, the default baud rate is 9600BPS, the maximum data transmission and return time is 1000ms, fast and efficient. With Protection Function: PCB board relay module verification methods include no verification, even verification and odd verification, with hardware reset function and TVS non-surge protection. Intimate Service: Our products are strictly inspected before delivery. If you have any questions about our products, you are welcome to contact us and we will serve you wholeheartedly. 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 Note: Please pay attention to correct operation. Package List 1 x RS485 Relay Module