GLR270812R, GLR270824R
8-Channel 27MHz Gigalink™ Receiver with Relay Outputs

Features  • Wide supply connection – 11.0 to 14.0 Volts AC/DC for GLR270812R or 21.0 to 28.0 Volts AC/DC for GLR270824R • Highly sensitive receiver input stage. When used with GLT27…. series transmitters and an ANT27L antenna, an operating range of 350 metres (980 ft) is possible. • Eight relay outputs. Outputs can be operated simultaneously. • Crystal controlled for high stability and performance. • Dual Conversion to reduce interference. • Uses micro-controller technology that can be re-programmed to suit unique applications. • Momentary, flip-flop and latching output modes is user selectable. Applications • automatic gates, security, timer controlled outputs and simple on/off functions etc  Click image to enlarge  Click image to enlarge GLR270812R 12V Relay Outputs GLR270824R 24V Relay Outputs

Click image to enlarge Download Datasheet Programming Instructions Description Products in the Range Technical Data Block Diagram Receiver Selection Table

Description

The GIGALINK™ is an advanced Remote Control technology available in the world today. GIGALINK™ is an invention that has revolutionised the entire Remote Control technology including Elsema's earlier version of FMT- … and FMR- … series. The GLR.... series state-of-the-art invention brings a new dimension in the world of Remote Control technology in domestic, commercial and industrial applications.

The innovative microcontroller technology replaces the traditional dip switch coding which eliminates any possible code grabbing. Special features such as over four billion code combinations, ability to program any number of transmitters to any of the receiver outputs, three user selectable modes and dual conversion superhet all adds up to the most advanced and secure Remote Control available.

The microcontroller built-in code programming system automatically selects the programming mode that provides flexibility in programming each receiver channel to different transmitter channels. In programming mode the receiver sends a random code to program the transmitter channel(s). Momentary joining the two CC pins on the receiver board sets all eight channels to a random code. To program the receiver to the transmitter channel(s) follow the steps outlined in the receiver instructions.

Four billion codes

The user can easily change the code on all the channels. Momentary joining the two CC pins on the receiver board sets all channels to one random code. One of 4,294,967,296 possibilities is selected.

Code Programming

During single code programming, the 3-way dip switch selects the channel to be programmed. The table below shows the setting to select a different channel.

After selecting the correct channel, the receiver channel is ready to be single code programmed. Follow the steps outlined in the receivers instruction sheet titled single code programming to complete the code programming.

If all the receiver channels are to be programmed onto a multi channel transmitter, then follow the steps outlined in the receivers instruction sheet titled channelised code programming. This does not require the user to set the 2-way dip switch since all receiver channels will be programmed sequentially onto the transmitters channels.

The receiver power must be connected when single or channelised code programming.

When programming is completed and the GIGALINK cable is removed from the multi channel receiver-coding socket, the 4-way dip switch is used to select different output modes. This is described below.

Different Modes for the Output

Modes are user selectable from the 3-way (Dipswitch 4 is reserved for specific customer mode. Normally not used.)

DIP Switch Mode Settings The output relay will respond in the following manner when receiving the correct signal from a transmitter
	"All Momentary": Relay on, only while correct signal is received
	"All Flip-Flop": Outputs alternate at every correct incoming signal
	"Momentary & Flip-Flop": Outputs 1-4 are momentary & 5-8 are flip-flop
	"Latching on": Outputs will be on until supply to receiver is momentarily interrupted
	"Momentary & Flip-Flop": Outputs 1-6 are momentary & 7-8 are flip-flop
	"Momentary & Flip-Flop": Outputs 1-2 are momentary & 3-8 are flip-flop
	"Momentary & Flip-Flop": Outputs 1-3 are momentary & 4-8 are flip-flop
	"Latching on": Output 1 is latching & 2-8 are momentary

* Dipswitch 4 is reserved

AC/DC Supply and Antenna

AC/DC power supply and antenna is connected to the 3-way terminal block. Do not connect the supply to the 2.5-mm coding socket since connection may damage the microcontroller.

Channels

The eight channels are relay outputs using the ULN2803 Integrated Circuit. This IC is inserted to a socket that enables the user to easily change the output stage in case of a damaged output. The ULN2803 IC is available from Elsema. Output 1 being at the left and output eight to the right of the terminal block.

Dual Crystal Control

The GLR270812R, GLR279824R is crystal controlled using dual conversion. Dual conversion is where the received frequency is mixed twice, using a crystal at both mixing stages. This results in less interference, enabling the receiver to operate in noisy industrial applications, improves operating performance, which allows the receiver to pass EMC and stringent radio regulations around the world.

Unique Code System

The microcontroller EEPROM allows large volume users to have a unique code. This enables Elsema to offer everyone “your own” radio control.

Case

The GLR270812R, GLR279824R is supplied without a case, this allows the receiver to be integrated according to your needs.

The C160 case (weather proof) can be used to enclose the GLR270812R, GLR270824R receiver. The receiver with a case is known as a GLR270812RE, GLR270824RE.

Products in the Range

GLR2701 Single Channel Receiver with Relay Output	GLR2701240 Single Channel 240V Receiver with Relay Output	GLR2702 2-Channel Receiver with 2 Relay Outputs	GLR2702240 2- Channel 240V Receiver with Relay Outputs	GLR270312 3-Channel 12V Receiver with 3 Relay Outputs
GLR270324 3-Channel 24V Receiver with 3 Relay Outputs	GLR270412 4-Channel 12V Receiver with 4 Relay Outputs	GLR270424 4-Channel 24V Receiver with 4 Relay Outputs	GLR2708 8-Channel Receiver with 8 Open Collector Output	GLR270812R 8-Channel 12V Receiver with 8 Relay Outputs
GLR270824R 8-Channel 24V Receiver with 8 Relay Outputs	GLR2701SS 1-Channel Receiver with 1 Open Collector Output	GLR2702SS 2-Channel Receiver with 2 Open Collector Output

Technical Data

Block Diagram

GLR270812R/GLR270824R

GLR270812R/GLR270824R (Old Version)