Function
2-channel ON-OFF DI and DO transmits data timely. The 2-channel switching condition for the transmitting equipment can be transferred timely to the receiver equipment. That is once the transmitting equipment is switching on; the receiver equipment will be switching on. When the transmitting equipment is switching off, the receiver equipment will be off.

FEATURE:
1、 2-channel coupler isolated inputs, high reliability and stability.
2、 2-channel relay dry contact output, contact current is 30V 1A.
3、 Collocated with wireless data transmission module whose transmitting distance is 2-3km.
    Working frequency 433MHz (400-470MHz);
    RF power: 500mW;
    Receiving sensitivity: -123dBm
4、 Receiving current: 30mA; transmitting current: 300mA
5、 Power supply: DC 12V
6、 Features of the output contact is as following: (the parameters of the relay inside):