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GLR2701
Single Channel 27MHz Gigalink™ Receiver
Features
• Wide supply connection – 11.0 to 28.0 Volts AC/DC
• 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.
• Relay Output.
• 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
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GLR2701E
Single Channel Enclosed |
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 Download Datasheet
Programming Instructions
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Description
The GIGALINK™ , GLR2701 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 innovative microcontroller technology replaces the traditional dip switch coding which eliminates any possible code grabbing. Special features such as over four billion code combinations, operational over a wide voltage range, eight user selectable modes and ability to program any number of transmitters to a receiver adds up to the most advanced and secure Remote Control available.
The microcontroller in-built code programming system automatically selects the programming mode that provides flexibility in programming the receiver channel to different transmitter channels. In programming mode the receiver sends a random code to program the transmitter channel. Momentary joining the two CC pins on the receiver board sets the channel to a random code. To program the receiver to the transmitter channel(s) follow the steps outlined in the transmitter instructions.
The receiver power must be connected during code programming.
Dual Crystal Control
The GLR2701 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.
AC/DC Supply, Antenna and Relay Connections
AC/DC power supply, antenna and relay connections are via a six-way screw-type terminal block. Do not connect the supply to the 2.5-mm coding socket since connection may damage the microcontroller.
Different Modes for the Output
Modes are user selectable from the 4-way dip switch, shown below.
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 GLR2701 can be supplied with or without a case. The case used to enclose the receiver is Elsema's black UBB plastic case. The receiver can also be inserted to a Quick Mount enabling easy mounting to walls roof etc
Products in the Range
Technical Data
| Supply Voltage |
11.0 to 28 VDC and 10.0 to 28 VAC.
Can use Elsema AC power pack (PP12 or PP24).
Supply lines should be less than 3 metres long to comply with radio frequency authorities. |
| Current Consumption |
10mA standby at 12 VDC Supply
45mA if relay “ON” at 12 VDC Supply |
| Receiver Type |
Dual Conversion Superheterodyne |
| Receiving Freq |
27.195MHz (Other freq available on 27.045, 27.145, & 27.455MHz. The 27.455 freq is not available for Australia) |
| Type of Crystal Used |
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 |
| Image Rejection |
At 26.285MHz better than -60dB |
| Sensitivity |
1uV (for output to activate) |
| Type of Demodulation |
Narrow-bandwidth Frequency Modulation (FM) |
| Occupied Bandwidth |
±5kHz |
| Decoding System |
Microcontroller based 96-bit word |
| Code Combinations |
4,294,967,296 |
| Output |
Change over relay output, rated at 5 Amps/240 Volts |
| Connections |
6-way screw type terminal block |
| Antenna |
50 ohms, 27MHz CB-Antenna or approximately 1m long & 1mm thick piece of wire |
| Dimensions |
99 x 70 x 20mm |
| Mounting Hole Size |
3.97mm or 5/32" |
| Weight |
77g |
| 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 asume line-of-sight operation. |
Block Diagram
GLR2701 12/24 VAC/DC Application
GLR2701 240/110 VAC Application
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