DC 12V 8 Channel Ethernet Relay Network Switch Modbus MQTT TCP UDP Web HTTP RS485/TCP Timer Module ET48A08        Feature:  1: Wide range of applications  2: With or without shell optional  3: Long service life  4: Simple to use  5: Communication interface: RS485 interface / network interface (optional)    Specifications:  1: Working voltage: DC 12V  2: Standby current (all relays closed) 13MA, 1 relay on 41MA, 2 relays on 69MA, 3 relays on 95MA, 4 relays on 122MA, 5 relays on 149MA, 6 relays on 174MA, 7 relays on Open 198MA, 8 relays open 226MA  3: Communication interface: RS485 interface / network interface (optional)  4: ''open''''close''''instantaneous''''self-locking''''interlocking' '''delay'' 6 commands  5: MODBUS RTU command, support 03 06 16 function code  6: Under the ''delay'' command, the maximum delay is 255 seconds;  7: MODBUS command can be entered through serial hyper terminal (serial assistant) or ''Modbus Poll''  8: The default baud rate is 9600BPS. Baud rate can be set by command: 1200 2400 4800 9600 19200BPS  9: Data sending and returning time can be set, the maximum value is 1000ms  10: Size: 145*90*40mm (with case)  11: Weight: 138g (PCB board only); 230g (with case)  12: Maximum load: 10A/250VAC, 10A/125VAC, 10A/30VDC, 10A/28VDC, 10A/12VDC    Application:  PLC output expansion board  PTZ CCTV camera  Security Monitoring  recognition system;  Motor FW & BW  Automatic Curtain Control  Ethernet Controller, TCP/IP Controller, etc.    Package Included:  1*DC 12V 8 Channel Network RS485 Modbus Slave Relay Module