Features: 1. Control the 8-channel relay pull-in and release through the Ethernet network, with 8 channels of configurable local buttons (input terminals) 2. Support configuration of module parameters and button working mode through the network 3. The module supports both TCP and UDP modes of operation. The instructions are easy to understand. The commands can specify jog and 1-65535 second delay. 4. Using industrial grade STC microcontroller as the main control chip 5. Onboard 8-channel high quality relay, the relay absorb diode circuit 6. With 1 channel power indicator, each relay has a state indicator, the light is on and the relay is closed. 7. Configurable to restore the relay state before power failure 8. Through the internet control, the cloud remote control is protected by local password, which is safe and reliable. 9. Support 9-24V input voltage with reverse connection protection Specification: Condition: 100% Brand new Item Type: Relay Board Package List: 1 x Relay Board Interface Description: 1 to 8: Connect 8 local buttons GND: Button common ground Relay terminal: Connect to the user load, you can use 220V AC equipment, or DC equipment less than 30V, the equipment current can not exceed the standard load of the relay. Each relay has a normally open contact, a normally closed contact and a common contact. When the relay is engaged, the common contact and the normally open contact are turned on; when the relay is released, the common contact and the normally closed contact are guided. Note:New-style and old-style are shipped randomly.