Product Description
This 4-way ON-OFF module is to transmit the ON-OFF condition to a remote place wirelessly in time. When here the switch condition is ON, the output in the remote place is ON. When the local switch condition is OFF, the other terminal is OFF.

Product Feature
1. 4-way isolated input, high reliability and stability. 
2. 4-way relay dry contact output, contact current is 220V, 5A.
3. Collocated with a wireless data module inside whose transmitting distance is about 2km-3km; the working frequency 433MHz (400-470MHz); RF power: 1000mW; 
4. Receiving sensitivity: -120dBm
5. Receiving current: 60mA; transmitting current: 350mA
6. Power supply: DC 12V-30V
7. Dimension: 95mm*90mm*40mm

Product Specification
DIP8:Working method
ON-input changes trigger transmission. Once you change any of the 4-way's condition, the module will send out this info.
OFF---fixed time transmitting. The master transmits 4-way's condition to the slave every 1s or 2s (not real-time transmitting).
DIP7:Master and slave choosing under the fixed time transmitting mode
ON-slave,OFF-master
DIP6:Data collecting mode choosing
ON---Point to point transmission mode
OFF---Data collection mode
The master collects input condition or controls output condition via sending data. In data collecting mode, the module can't send out data actively. That is to say touch off transmitting and fix time transmitting are both invalid at this mode.
DIP5:Feedback choice
ON--feedback function close
OFF--receiver will send back the received data to transmitter
DIP1-4:Channel choosing
To avoid interference, please use different DIP switch mode and choose different channels when you use several pairs of modules in the same place,Maximal 16 channels.

Application
1. Touch off transmitting mode
Once there is any input change happens, the module will send it out. This mode has the advantage of high speed, real-time transmission, and low power consumption. Because module only transmits if there is input changes.

2. Fixed time transmitting mode
Under this mode, there should be one master and one slave module. The master will synchronize with the slave every 1s, means the master will transmits its condition to slave every 1S and the slave will transmits its condition to master every 1S. If the master cannot synchronize with slave, the buzzer inside of module will alarm. And all contacts will disconnect at the same time. This alarm will stop automatically until the master is synchronize with slave again.
There will be at most 1s ON-OFF delay under this mode.

How to use KYL-815
1. Consider your specific application, set the DIP switch, connect VCC (12V-30V DC) and connect input and output cables as per the above instruction.
2. Power supply for the module.
3. The factory setting is input changes trigger transmission mode and current channel is No.1.
4. Choose different frequency points to avoid interference caused by more pairs of modules working in the same area.