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FMR-212
27MHz FM Receiver, 10-28VDC/AC
(Please take note of the Label in BLUE)
Features
• Wide supply connection – 10.0 to 28.0 Volts AC/DC
• Crystal Controlled
• Digitally Encoded
• Relay Output

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FMR-212Q - Receiver with QM100 Quick Mount |

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FMR-212E
- UBB plastic case with aluminum mounting bracket and a keyhole
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Download Datasheet
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Description
The
FMR-212 is a crystal controlled single channel receiver, comprising
of receiving, decoding and relay-output sections. A specially designed
micro-controller is used 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 of the
input signal (from a transmitter) matches the setting of the coding
switch on the receiver (up to 4096 combinations), an output is obtained
i.e. the relay operates. This relay provides a clean set of contacts
for switching AC/DC current up to 5 Amps.
Connection
to the receiver is via a six-way screw-type terminal block. The
receiver can be mounted to a Quick Mount or in a black UBB case.
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.
A push Button (designated as "TEST") is provided for relay output testing.
In
the momentary mode (MOM) the relay is only activated while the correct
signal is received. When changing the slide switch from "MOM" to "FF”
(flip/flop mode) the output relay is toggled with every correct
incoming signal. This enables the direct use for switching on/off
lights etc.
If a "latching-on" output
is required, for example receiver is used together with a "Panic
Button", two wire links are to be fitted and the switch to be ON, as shown below. In such a case the
relay can only be reset again by momentarily interrupting the supply.

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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Technical Data
| Supply Voltage |
10 - 28 Volts AC or DC
Can use Elsema AC power supply 12PP1000 or 24PP |
| Current Consumption |
15mA stand by at 12 VDC; 40mA if relay is "ON" at 12VDC |
| 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 the relay to switch on) |
| Type of demodulation |
Narrow-bandwidth Frequency Modulation (FM) |
| Band Width |
±2.5kHz |
| Decoding System |
Onboard 12-way coding switch (4096 digital channels) |
| Output |
Change over relay output, rated at 5A / 240V |
| Relay Contacts |
Common (C) Normally Close (NC) & Normally Open (NO) |
| Connections |
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 |
96 x 70 x 20mm |
| Mounting |
Clip into a QM100 Quick Mount or UBB plastic case |
| Weight |
58g |
| Compatible Transmitters |
All Elsema type FMT-... 27MHz series and KEY-3.. series |
FMR-212 Block Diagram

FMR-212, 12/24 V Application

FMR-212, 240/110 VAC Application

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