Elsema GLR2703 User manual

ELSEMA
Multi-Channel 27MHz Gigalink Receiver, GLR2703, GLR2704
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GLR2703, GLR2704
Multi-Channel 27MHz Gigalink™ Receiver
Features
• 3 or 4 Channels
• 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.
• Three (GLR2703) or Four (GLR2704) relay outputs. All 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, latching and security latching output modes is user selectable.
• Power ON LED indicator.
• Test buttons for relay.
Applications
• Automatic gates, security, timer controlled outputs and simple on/off functions etc
GLR2703
3-Channel Receiver
GLR2704
4-Channel Receiver
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, dual conversion superhet and operational over
a wide voltage range all adds up to the most advanced and secure Remote Control available.

ELSEMA
Multi-Channel 27MHz Gigalink Receiver, GLR2703, GLR2704
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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
For code programming, please refer to the separate programming instructions.
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.
Output Modes
Relay output on the receiver can function in either momentary or latching mode. By default the mode is set to
momentary. Modes selectable from the 4-way dipswitch. Dipswitch 1 corresponds to relay channel 1 and dipswitch 2
corresponds to relay channel 2 and so on.
Factory Default = Momentary
Momentary - Output is active for as long as the transmitter button is pressed.
This is a standard mode on most automatic gates or garage door openers.
Latching - Output remains active until next press of the transmitter button.
Similar to switching "on" and "off" a light.
Security
Latching
-
Output remains active until power to the receiver is removed. Similar to security alarms
and fire alarms. To activate the security latching mode, a link needs to be soldered into the
hole marked as latching.
Customised Software
Custom output modes can be programmed to do special functions. Call Elsema for more details.
AC/DC Supply and Antenna
AC/DC power supply and antenna is connected via a screw-type terminal block. Do not connect the supply to the 2.5-
mm coding socket since connection may damage the microcontroller.
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 three or four-channel receiver is supplied without a case, this allows the receiver to be integrated according to
your needs. Elsema has Quick Mount bracket which enables easy mounting to walls, roof etc.

ELSEMA
Multi-Channel 27MHz Gigalink Receiver, GLR2703, GLR2704
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Products in the Range
GLR2701
1-Channel
GLR2701240
1-Channel, 240V
GLR2702
2-Channel
GLR2702240
2-Channel, 240V
GLR2703
3-Channel Receiver
GLR2704
4-Channel
Receiver
GLR2708
8-Channel
GLR2708R
8-Channel with
Relay Output
GLR2701SS
GLR2702SS
1,2 -Channel, Open
Collector Output
GLR2701SST
GLR2702SST
1,2 -Channel, Open
Collector Output

ELSEMA
Multi-Channel 27MHz Gigalink Receiver, GLR2703, GLR2704
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Technical Data
Supply Voltage
GLR2703 : 11.0 to 28.0 VAC/DC
GLR2704 : 11.0 to 28.0 VAC/DC
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 14mA standby , 110 mA if all relays "ON" at 12VDC
Receiving Frequency 27.195MHz
Operating Temperature
Range
-5 to 50°C
Sensitivity 1uV (for output to activate)
Decoding System Microcontroller based 96-bit word
Code Combinations 4,294,967,296
Outputs Three / Four change over relay outputs, each rated at 8 Amps/240 Volts.
Connections Supply, Antenna & Outputs: Screw type terminal block
Antenna 50 ohms, 27MHz CB-Antenna or approximately 1m long & 1mm thick piece of wire
Dimensions 130 x 70 x 20mm
Mounting Hole Size 3.97mm or 5/32"
Weight 127g
Microcontroller Can be re-programmed to suit your customised needs
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.

ELSEMA
Multi-Channel 27MHz Gigalink Receiver, GLR2703, GLR2704
- 5 -
Block Diagram

ELSEMA
Multi-Channel 27MHz Gigalink Receiver, GLR2703, GLR2704
- 6 -

ELSEMA
Multi-Channel 27MHz Gigalink Receiver, GLR2703, GLR2704
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GLR2703/4 12/24 VDC Application

ELSEMA
Multi-Channel 27MHz Gigalink Receiver, GLR2703, GLR2704
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GLR2703/4 110/240 VAC Application

ELSEMA
Multi-Channel 27MHz Gigalink Receiver, GLR2703, GLR2704
- 9 -
REGULATORY COMPLIANCE STATEMENTS
American Users
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
(1) This device may not cause harmful interference and
(2) This device must accept any interference received, including interference that may cause undesired operation.
FCC Notice
This device has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the
FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential
installation. This device generates, uses, and can radiate radio frequency energy and, if installed and used in
accordance with the instruction, may cause harmful interference to radio communications. However, there is no
guarantee that interference will not occur in a particular installation. If this device does cause harmful interference to
radio or television reception, the user is encouraged to try to correct the interference by one or more of the following
measures:
•Reorient or relocate the receiving antenna.
•Increase the separation between the computer and receiver.
•Connect the computer into an outlet on a circuit different from that to which the receiver is connected.
•Consult the dealer or an experienced radio/TV technician for help.
Caution: Any changes or modifications not expressly approved by the grantee of this device could void the user’s
authority to operate the equipment.
Canadian Users
This Class [B] digital apparatus meets all requirements of the Canadian Interference-Causing Equipment Regulations.
Cet appareil numérique de la classe [B] respecte toutes les exigences du Règlement sur le matériel brouilleur du
Canada.
Australian and New Zealand Users
This device has been tested and found to comply with the limits for a Class [B] digital device, pursuant to the
Australian/New Zealand Electromagnetic compatibility (EMC) standard AS/NZS 61000.6.3 set out by the Spectrum
Management Agency.