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Traffic Automation Digital Input Output Wireless I O Module , PCB Wireless ON OFF Module

Good quality Long Range RF Module for sales
Good quality Long Range RF Module for sales
We are very satisfied with their service and products, I bought their long range audio modules, at the begining I could not installed the modules, they taught me step by step and finally I got it! The modules work well and help me won the bid! Best Regards! Santithamkul

—— Santithamkul from Thailand

I visited many factories before I placed order for my radio modem. The reason I choose them is their professional skill and their excellent service. They do very best in every details. I like this factory and also like their lovely sales people! I will recommend more business partners to do business with them.

—— Makarov From Russia

Very excellent products and excellent service! I visisted many factories in China but none of them were meet my request! I finally chose them because many of my partners recommanded this company to me! The I/O Modules they sold were brilliant! It makes us more convenient with wireless solution!

—— Andrew from Brazil

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Traffic Automation Digital Input Output Wireless I O Module , PCB Wireless ON OFF Module

China Traffic Automation Digital Input Output Wireless I O Module , PCB Wireless ON OFF Module supplier
Traffic Automation Digital Input Output Wireless I O Module , PCB Wireless ON OFF Module supplier Traffic Automation Digital Input Output Wireless I O Module , PCB Wireless ON OFF Module supplier

Large Image :  Traffic Automation Digital Input Output Wireless I O Module , PCB Wireless ON OFF Module

Product Details:

Place of Origin: ShenZhen,China
Brand Name: carrylink
Model Number: KYL-812P(Composite Module)

Payment & Shipping Terms:

Minimum Order Quantity: 2pcs
Price: negotiation
Packaging Details: cartons for outer packing and plastic film for wrapping
Delivery Time: 3-5 working days
Payment Terms: T/T, Western Union, PayPal
Supply Ability: 100pcs per day
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Detailed Product Description
Name: RF I O Module Distance: 8KM-12KM(Line-of-Sight)
Power: 500mW Dimension: 82mm*82mm
Frequency: 433MHz Interface: TTL

Traffic Automation Wifi Digital IO Module , Oil Gas Wireless Expansion Module



4-way digital input output module can achieve wireless transmission in real time, the relay output of receiver module is connceting with ON-OFF input of the transmitter relay output. In other words, when the input of the transmitter switch on, the corespond relay output will be on at the same time. When the input of the transmitter switch off, the corespond relay output will be off at the same time. All channels are independent. No program, no wires, users can remote control switching. This product is widely-used in Industrial controller, wireless monitoring, waterworks automation and other projects.


1.KYL-812 Application diagram



2.KYL-812 Connection Diagram





Wireless water pump automatic control

Wireless sound and light alarm lights

Industrial remote control, industrial site monitoring

Traffic Automation Control

Environmental Monitoring System

Oil pipeline monitoring system


•Technical Specification

                                                        KYL-812 Parameter


Features Range Typical value Remark
Power supply D.C. 9-36V 24V Output currents 500mA
Transmission distan ce 8-12KM   Line-of-sight
Ourput No.   4 output  
Output type   Relay Maximum load capacity DC 220V5 A
Input No.   4 input  
Input type I   Dry Contact  
Input type n DC 0-24V Low level < IV Low level corresponds to closed
High Level>4.5V High level corresponding to disconn ected
Transmitting Curren t   <300mA  
Receiving Current   <20mA  
Dimension   82mm*82MM  


















Remarks: The input type has been specified according to the customer's requirements. So can not be changed after shipment



•The Function-Indicator Light

1. Power Indicator-PWR: Power on

2. Data indicator-T/R: Flashes once per second, indicating that the module is operating normally

3. Running lights-RUN: The indicator flashes when the module transmits/receives data each time

4-7: Switch output status indication D1-D4:The indicator light is on, indicating that the corresponding output channel is closed, otherwise it is disconnected



1. DIP1-4: Channels choosing



 2. DIP5-8: Working mode choosing





*Users generally use the inputting change sending mode, DIP7-ON;

*To avoid more than two remote control systems working at the same time in one remote control range, the module for different system should choose different channel (working frequency);

*In timing mode, one must be the master and the other is the slave

*It should be effect by re-power on the module after changing the DIP position.



•Pin Definitions

Traffic Automation Digital Input Output Wireless I O Module , PCB Wireless ON OFF Module


•Using Method

1. Install the antenna to the module.

2. In accordance with the use of demand, according to the above instructions set the DIP switch, connect the corresponding switch input, switch output device.

3. Connect the power (12-30V), turn on the power switch, the power requirements of the output current needs reach more than 500mA.

4. At this point, the input of module can control the output of another module.

5. The module is two-way transmission, that is, a module can as an input, at the same time, can also be used as a controlled output, and vice versa.

6. Within the same remote control distance range if user using more than two sets of remote control system, one should use a different operating frequency to avoid mutual interference.

•Working Mode

1. Triger mode
When ON-OFF input status changed, it will triger I/O Module to send the local status information. This mode has fast speed, can be in real time. Only when input status changed, then will send the signal, the energy consumption will be low.
2. Timer mode
At 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 feedback its condition to master every 1s. If the time master cannot synchronize with slave reaches at 3s, all contacts will disconnect. They connects until the master is synchronizing with slave again. There will be 1s transmission delay at this mode.
3. Collecting mode
At collecting mode, DIP8 (transmitting mode), DIP7 (master/slave mode) and DIP5 (repeater/feedback mode) are all invalid. At this mode, module works as a Modbus slave, it can not transmit data actively. Master can be a PC connecting with a wireless data module or other data terminal. Data terminal sends Modbus RTU command and requests slave feedback collection condition or control slave's ON-OFF output. Slave's ID can be 1 to 254.

4. Feedback/repeater mode

At feedback/repeater mode, receiver will retransmit the command it received and make it reach longer distance. It functions as a repeater. The transmitter will output related ON-OFF condition on its output COM after receiving retransmitted command. Meanwhile, the output indicator will be ON/OFF. Its output condition will be the same with its input condition. If receiver didn't receive the command, it will not retransmit, feedback will fail. Master's output condition will be not the same with its input. This function can monitor receiver's output results. If the user is not familiar with the product and is unfamiliar with the method of use, all code switches should be pull to the ON position to test.



•KYL-812 Other Application

KYL-812 can work with same series I/O Module: KYL-813, KYL-818 etc, to reach the function of centralized control, and centralized output (please indicate to sales when you set the purchase order). Please look the below diagram as example:





•Ordering Information

Standard Product


Traffic Automation Digital Input Output Wireless I O Module , PCB Wireless ON OFF Module



1. Standard accessories
►1pc KYL-812 module.

►3pcs 8pin flat cable.

►1pc 2pin power cable.
►1pc small magnetic antenna
2. Selectable accessories
►Selectable antenna.(Users can choose the antenna according to their needs.)
Pic.: Part of selectable accessories
Traffic Automation Digital Input Output Wireless I O Module , PCB Wireless ON OFF Module

Contact Details
Shenzhen KYL Communication Equipment Co.,Ltd

Contact Person: sales

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