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GLR2702240
2- channel 27MHz, Receiver with mains AC supply
Features
- Supply voltage 240VAC (also available in 110-120VAC supply for international markets)
- High efficiency toroidal transformer
- High capacity output relay
- Test push buttons for the relay
- Momentary, Flip Flop and Latching modes are all user selectable.
- Optional QM150 bracket available for easy mounting to cases or walls.
- Also available in an IP66 rated case for outdoor installations
Application
- Pump Control
- Long distance panic button
- On/Off applications in agricultural devices
- Basic Telemetry eg. Water level indication
- Security alarm

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GLR2702240Q
2- Channel 240VAC Supply in Quick Mount |
GLR2702240E
2- Channel 240VAC Supply in an IP66 rated Case and with 1.7metre AC cord for plug and play |
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Download Datasheet
Programming Instructions
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Description
The GIGALINK™, GLR2702240 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. This state-of-the-art invention brings a new dimension in the world of Remote Control technology in domestic, commercial and industrial applications.
The toroidal transformer on this receiver is 25-30% more efficient than the conventional types. It has a low operating temperature, low hum and low stray magnetic field.
Connection to the receiver is via a five-way screw-type terminal block. An on board LED indicates when power is connected and an extra LED on the board to indicate when the relay is activated. There is a test button for the relay output to test your connections.
The receiver’s high capacity output relay is capable of switching up to 16 Amps of resistive load and up to 8 Amps of inductive load. A world first for a standalone receiver.
The receiver can be mounted to a Quick Mount or in a weatherproof case with an IP66 rating.
Coding
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 - Single
During single code programming, the 2-way dip switch selects the channel to be programmed. The table below shows the setting to select a different channel.
Dip Switch 1 |
Dip Switch 2 |
Setting Channel
(Output Relay) |
OFF |
OFF |
1 |
ON |
OFF |
2 |
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.
Code Programming - Channelised
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 2-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 2-way dipswitch. Dipswitch 1 corresponds to relay channel 1 and dipswitch 2 corresponds to relay channel 2.
| Momentary Mode |
If the dipswitch is “off” the relay will be in momentary mode. |
| Flipflop Mode |
If the dipswitch is “on” the relay will be in flipflop mode. |
| Latching |
If latching is required (Relay stays on until power is removed) the latching link should be inserted and soldered into the two holes to the right of the 2-way dipswitch. This will enable corresponding relays to latch. |

Care must be taken, not to bring a receiver near strong magnetic fields, such as DC-Motors, speakers, magnets for reed switches, transformers etc. as it would magnetise the coils and may cause severe de-tuning.
Products in the Range
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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 |
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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 |
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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
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Technical Data
Supply Voltage |
240Volts AC Mains
(110-120VAC available on request). |
Current Consumption |
18mA 240V AC |
Receiver Type |
Dual Conversion Superheterodyne |
Receiving Freq |
27.195MHz (Other frequencies available: 27.045, 27.145 & 27.455MHz. NB. 27.455MHz is available for Europe Only) |
Type of Crystal |
10.245MHz, Fundamental, 20pf, 30ppm
16.495MHz, Fundamental, 20pf, 30ppm |
Operating Temperature Range |
-5 to 50°C |
1st IF Freq |
10.7MHz |
2nd IF Freq |
455kHz |
Selectivity |
-6dB at ±5kHz
-20dB at ±6kHz |
Sensitivity |
1uV (for output to activate) |
Image Rejection |
At 26.285MHz better than -60dB |
Type of Demodulation |
Narrow-bandwidth Frequency Modulation (FM) |
Occupied Bandwidth |
±5kHz |
Decoding System |
Microcontroller (32-bit word 4.29 x 10^9 codes) |
Code Combinations |
4,294,967,296 |
Connection |
8-way screw type terminal block for Supply and Relay
2-way screw type terminal block for Antenna |
Output |
2 Change over relay outputs, rated at 16 Amps of resistive load and up to 8 Amps of inductive load each. |
Antenna |
50 ohms, 27MHz CB-Antenna or approximately 1m long & 1mm thick piece of wire |
Dimensions |
130 x 70 x 37mm |
Mounting hole size |
3.97mm or 5/32” |
Weight |
190g |
Useable Transmitters |
All Elsema Type 27MHz GLT-... series |
Useable operating range |
Up to 350m with proper 50 ohms, 27MHz CB-Antenna. Up to 200m with 1m long antenna wire. Antenna wire should be extended and away from metal. Ranges assume line-of-sight operation. |
Block Diagram

Application Diagram
GLR2701240

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