Specification: _x005f_x000D_ Origin: Mainland China _x005f_x000D_ Product Description: _x005f_x000D_ 1. 12V DC power supply _x005f_x000D_ 2. Standby current (all relays closed) 13MA, 1 relay open 41MA, 2 relays open 69MA, 3 relays open 95MA, 4 relays open 122MA, 5 relays open 148MA, 6 relays open 174MA, 7 relays open 198MA, 8 relays open 225MA. ETC _x005f_x000D_ 3. "On", "Off", "instantaneous", "self-lock", "Interlock" and "delay" 6 instructions _x005f_x000D_ 4. Two command control modes: MODBUS RTU command and AT command _x005f_x000D_ 5. In the Delay command, the maximum delay is 255 seconds. _x005f_x000D_ The maximum delay under the AT command is 9999 seconds _x005f_x000D_ 6. Run the MODBUS command through the serial port hyperterminal (serial port Assistant) or Modbus Poll. The AT command can be entered through the serial port hyperterminal (serial port assistant). _x005f_x000D_ 7. In MODBUS command mode, a maximum of 64 devices can be connected in parallel _x005f_x000D_ 8. The default baud rate is 9600BPS. Baud rate can be selected by jumper: 2400 4800 9600 19200BPS _x005f_x000D_ 9. Size: 180*72*20mm/7.09*2.83*0.67inch (PCB board only); 184*88*42mm/7.18*3.43*1.64in (with Din rail box) _x005f_x000D_ 10. Maximum load: 10A/250VAC, 10A/125VAC, 10A/30VDC, 10A/28VDC, 10A/12VDC _x005f_x000D_ _x005f_x000D_ _x005f_x000D_ Note: _x005f_x000D_ Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! _x005f_x000D_ Please allow 1-2cm measuring deviation due to manual measurement. _x005f_x000D_ _x005f_x000D_ _x005f_x000D_ _x005f_x000D_ Included: _x005f_x000D_ 1*RS485 Relay Module (Without Rail Box) _x005f_x000D_ 1*RS485 Relay Module (With Rail Box) 1.Multi-Channel Control: The RS485 relay board features 16 independent relay channels, enabling simultaneous control of multiple devices or execution of various actions for robust automation. 2.RS485 Communication: Equipped with an RS485 interface, the PLC controller serial port switch module boasts extensive communication range and superior anti-interference capabilities, ensuring reliable remote interactions. 3.12V DC Supply: Operating on a 12V DC power supply, the RS485 relay module is conveniently compatible with low voltage systems, making it versatile for a wide range of applications. 4.Reliable Relay Operation: Each channel of the relay switch module is designed for dependable performance, providing stable control for the switching of electrical equipment.