FMR-204/16
4/16 Channel Receiver with Open Collector Output
Features
• Crystal Controlled
• 4/16-Channel
• Digitally Encoded
Applications
• Remote control of garage doors, gates, lights, alarms |
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Description
The FMR-204/16 is a four-channel receiver that can also be configured as a sixteen-channel binary encoded receiver. The four outputs of the receiver are an open collector NPN transistor (BC337). If relay outputs are needed refer to FMR204-12 or FMR204-24 receivers.
The FMR-204/16 is an improved model to the FMR-204. It is compatible in performance, size and has the following additional features:
• A 4-way code switch is provided to independently select “Momentary” or “Flip-flop” for each transistor output i.e.
| |
ON |
OFF |
Transistor (Open Collector) |
| Switch 1 |
Momentary |
Flip Flop |
1 |
| Switch 2 |
Momentary |
Flip Flop |
2 |
| Switch 3 |
Momentary |
Flip Flop |
3 |
| Switch 4 |
Momentary |
Flip Flop |
4 |
• Provision for a 0.3” wire link (Left side of 4-way code switch), to easily configure as a 16 channel binary encoded receiver.
• Data is multi-tasking i.e. when 16 channels is configured, the receivers four transistor outputs always matches the data from the transmitter code switches 9, 10, 11 and 12, even if the data changes during a continuous transmission.
- The old FMR-204, the four output transistors did not change state when new (different) data is received from a “continuous transmission”, transmission had to momentarily stop and then re-transmit the new data.
- The new FMR-204/16 transistor outputs will change state even if different data is received during a continuous transmission.
• When the receiver is set to 16-channel mode, the 4-way code switch is use for extra options. See below table:
| |
ON |
OFF |
| Switch 1 |
Data on the 4 transistor outputs is retained, even when transmission to the FMR-204/16 stops (latched). Transistor outputs will change upon reception of different signal. |
Data on the 4 transistor outputs appears momentary |
| Switch 2 |
Reserved for future use |
Reserved for future use |
| Switch 3 |
Reserved for future use |
Reserved for future use |
| Switch 4 |
Reserved for future use |
Reserved for future use |
Technical Data
| Supply Voltage |
8 - 24 VAC/DC
Can use Elsema 12V AC Power Supply (PP12) |
| Current Consumption |
10mA |
| Receiving Frequency |
27.145MHz (Other freq. available: 27.045, 27.195 & 27.455MHz. NB. 27.455 freq. is not available for Australia ) |
| 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 (1024 digital channels) |
| 4-channel Mode |
Switch 11 and 12 of said transmitter will determine the channels 1 - 4. eg.
Channel |
Code 11 |
Code 12 |
1 |
ON |
ON |
2 |
OFF |
ON |
3 |
ON |
OFF |
4 |
OFF |
OFF |
|
| 16-channel Mode |
When 16-channel link is inserted, the data from code switches 9-12 appears in binary form at the 4 outputs |
| Output |
4 Open Collector NPN transistors (BC337) |
| Transistor Specifications |
Max switching 40V 100mA |
| Connections |
6-way screw type terminal block |
| Antenna |
50 ohms, 27MHz CB-Antenna or approximately 300mm long wire for short range applications. |
| Dimensions |
95 x 70 x 20mm |
| Weight |
49.0g |
| Compatible Transmitters |
FMT-... series |
Block Diagram
Connections are drawn as "View to Component Side" |
