Relay Function Module 2

Turn up to four electrical loads on or off with a button press or contact closure by using the relay function module with a compatible Linx transmitter and Holtek encoder. Holtek chips provide a low level of security. They let you send commands from multiple transmitters to distinct receivers in the same vicinity through physical addressing. The relay function module contains a Holtek decoder and an LR Series receiver. It can be used with a KH2 Series transmitter/encoder or with a combination of a Holtek encoder and an LT Series, LR Series or LC Series RF module. The encoder uses input from up to four buttons or contact closures to encode a digital signal, then passes the signal to a transmitter for sending. A receiver picks up the signal and passes it to a decoder. If the signal is accepted, the decoder replicates the encoder’s inputs on its outputs, switching an electrical load connected to the relay function module.

Security

The decoder will only accept transmissions from compatible encoders with addresses that match its own. Holtek chips allow manual addressing through DIP switches or cut traces. Because the address is visible in hardware, Holtek chips are not as secure as the MS Series and HS Series, which use digital addressing. Additionally, because Holtek chips do not use encryption or rolling code, they do not protect against intentional security threats.

Certification

For applications in the United States and Canada, the keyfob transmitter is certified at 315MHz, 418MHz and 433MHz by the FCC and Industry Canada. For applications in the European Union, it is CE certified at 433MHz. That means that as long as the rest of your application is legal, you do not need to certify the remote.

Customization

If you want to customize the appearance of the remote, Linx can accommodate you. Linx offers custom colors, labels, button configurations and cases. Once you tell us what the remote should look like, we need only four to six weeks to send samples and six to eight weeks for production after you approve the samples. Contact Linx for more information about customization.

Benefits

• Integrate with ease: simple hardware configuration lets you switch electrical loads without the need for user programming
• Avoid red tape: no certification needed in the US, Canada or EU as long as the rest of the application is legal
• Customize appearance: custom colors, labels, button configurations and cases are available
• Avoid accidental conflicts: physical address helps prevent identification mistakes

Ordering

Part	Description	Documentation	Stocking
FCTN-RLY4-315-2	315MHz 4 Relay Function Module	Datasheet	Availability
FCTN-RLY4-418-2	418MHz 4 Relay Function Module	Datasheet	Availability
FCTN-RLY4-433-2	433MHz 4 Relay Function Module	Datasheet	Availability

To order, please call +1 (800) 736-6677 or +1 (541) 471-6256 for callers outside the United States.