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FMR-202
27MHz 2-Channel Receiver with 2 Relay Outputs
Features
Crystal Controlled
2-Channel
Digitally Encoded
Applications
Remote control of garage doors, gates, lights, alarms |

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Description
The FMR-202 is a crystal controlled two-channel receiver, comprising of receiving, decoding and relay-output sections. A specially designed MICRO-PROCESSOR is employed in the decoder section, which ensures operation at low supply voltage, highest reliability, associated with very low power drain.
The receiver works on a digitally encoded 27 MHz frequency modulated (FM) signal. It may be used in applications such as the remote control of garage doors, gates, lights, alarms or in any other new or existing installations where the use of conventional wiring is difficult or impossible to accomplish.
If the code, from the transmitter matches the setting of the 10-way code switch on the receiver (up to 1024 combinations), an output is obtained i.e. the relay operates. This relay provides a clean set of contacts for switching DC current up to 5 Amps.
The two channels address code switch eleven. While code switch twelve is addressed with the wire link next to the receiver code switch. This feature enables the user to operate single channel transmitters on either of the two channels.
The supply and antenna connections to the receiver are via a three-way screw-type terminal block, with a separate six-way terminal block for the relay connections.
The receiver can be clipped to a Quick Mount enabling the receiver to be easily mounted against walls, roof, etc.
Elsema’s ANT27MHz series antennas will give a reliable control range of up to 200 metres, when used with Elsema’s FMT-301, FMT-302 and FMT-304 transmitters.
The two-way code switch (See below picture) allows individual control of each relays output mode. In the momentary mode the output relays are only activated while the correct signal is received. In the flip-flop mode the output relays are toggled with every correct incoming signal. This enables the direct use for switching on/off lights etc. In flip/flop mode, the relays are off at the initial "power-up".

Latching Feature
Inserting a .4” link into the latching link holes will configure the channels to latching “ON”, when the correct signal is received. To turn relay “OFF” power to the receiver must be momentary turned “OFF”.
Compatibility
All Elsema type FMT-… series
KEY-301, KEY-302, KEY-304
FMT-301, FMT-302, FMT-304
FMT-401, FMT-402, FMT-404
FMT-312E, FMT-31202E, FMT-31204E
Products in the Range
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FMR-201
Single Channel Receiver with Open CollectorOutput |
FMR-203
2-Channel PCB Strip Receiver |
FMR-212
Single Channel Receiver with Relay Output |
FMR-212T
Single Channel Receiver with Timer Controlled Relay Output |
FMR-24001
Single Channel 240V Receiver with Relay Output |
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FMR-24002
2-Channel 240VAC Receiver with 2 Relay Outputs |
FMR-202
2-Channel Receiver with 2 Relay Outputs |
FMR204-12
4-Channel 12V Receiver with 4 Relay Outputs |
FMR204-24
4-Channel 24V Receiver with 4 Relay Outputs |
FMR-204/16
4/16 Channel Receiver with Open Collector Outputs |
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FMR-232R
Computer Receiver with 2 Relay Outputs & Database Software |
FMR-100
Receiver for Multi-Channel System
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RXD-101
Decoder for Multi-Channel System |
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Accessories
Technical Data
| Supply Voltage |
11.0 - 28 Volts DC, 10.0 - 28 Volts AC
Can use Elsema AC power supply 12PP1000 or 24PP
Supply lines should be less than 3m long to comply with radio frequency authorities |
| Current Consumption |
15mA stand by at 12 Volts DC;
44.0mA if one relay is "ON" at 12Volts DC
73.0mA if both relays "ON" at 12Volts DC |
| Receiving Frequency |
27.145MHz (Other frequencies available: 27.045, 27.195 & 27.455MHz. NB. 27.455MHz is available for Europe Only) |
| Type of Crystal Used |
26.690MHz, 3rd overtone, 20pF, 30ppm at 0-50°C |
| IF Freq |
455kHz |
| Selectivity |
At least -40dB at ±10kHz |
| Sensitivity |
Better than 1uV (for relay to switch on) |
| Type of demodulation |
Narrow-bandwidth Frequency Modulation (FM) |
| Band Width |
±2.5kHz |
| Decoding System |
Onboard 10-way coding switch (4096 digital channels) |
| Output |
Two change over relay output, rated at 5A / 240V |
| Relay Contacts |
Two sets of Common (C) Normally Close (NC) & Normally Open (NO) |
| Connections |
Supply & Antenna: 3-way screw type terminal block
Two Relays:
6-way screw type terminal block |
| Antenna |
Elsema’s ANT27MHz series antennas or piece of approximately 300 mm long wire for short range applications. |
| Dimensions |
130 x 70 x 20mm |
| Mounting |
Clip into a QM100 or QM150 Quick Mount or UBB plastic case |
| Weight |
89g |
| Compatible Transmitters |
All Elsema type FMT-... 27MHz series and KEY-3.. series |
Block Diagram

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