FMT- 401WOP, FMT- 401WCL, FMT- 402WNL, FMT- 404WNL
High Powered, Wall Mount 27MHz Digital Transmitter with option to wire external switching devices

Features

• Works in the 27MHz band
• Maximum reliability provided by Surface-Mount technology
• High security by 12-way code switch enabling 4096 available coding
• Long operating distance
• Durable plastic cases
• Other versions also available

Application


• A remote control switching device for various uses eg. garage doors, lights, gates, and automatic telephone dialer
• A personal security alarm activator for home safety or cash carrying businesses eg. banks, shops service stations, etc.
• A calling device for the elderly or handicapped

27MHz Transmitter with external switch
 Click image to enlarge
Download Datasheet

Description
Technical Data
Wiring Diagram
Transmitter Selection Flow Chart

Description

The FMT-401WOP, FMT-401WCL, FMT-402WNL, FMT-404WNL gives the user the freedom to connect Reed switches, Toggle switches, Push Buttons or any form of normally open (NO) contact. FMT-401WCL uses a normally closed (NC) input.

FMT-401WOP: works in a one shot mode. It has a normally open input. When the input is shorted, the transmitter will give a burst transmission for 2sec and then go to sleep. To activate the transmitter again, the input will need to be opened and then closed again.

FMT-401WCL: works in the one shot mode. It has a normally closed input. When input is opened transmitter will give a burst transmission for 2 sec and then go to sleep. To activate transmitter again the input will need to be closed and then opened again.

FMT-401WNL will have 2 wires (Black and Brown) FMT-402WNL will have 3 wires (Black, Brown and Red) and the FMT-404WNL will have 5 wires ( Black, Brown, Red, Orange and Yellow) . All wires are 150mm long (6 inches)

Working in the 27MHz band , the FMT-40..WNL achieves the highest possible standard of performance by employing a crystal-controlled, frequency modulated radio signal. The microcontroller with the latest surface-mount technology provides maximum reliability.

High security against false operations is achieved by a 12-way code switch (part of the digital encoding system) is used in place of the usual 8 or 10 way systems of other manufactures. This enables the user to select any one of the 4096 codes available. The code can be easily changed at any time.

Operating Distance

Range (m)

Receiver Antenna

Receiver Type

70

300mm wire

FMR-… series

Upto 300

ANT27M

FMR-… series

(Range tests were done in an open area test site with line-of-sight operation and no interference. The receiver antenna wire was fixed vertically, away from any metal objects.)

Compatibility

All Elsema type FMR-… series:
FMR-201
FMR-212
FMR-212T
FMR-202
FMR-204/16
FMR204-12
FMR204-24
FMR-240
FMR-232R

Other Products in the Range

FM high power transmitter

 Click to enlarge
FMT-401

1-channel

handheld high power transmitter


 Click to enlarge
FMT-402

2-channel

4channel high power transmitter


 Click to enlarge
FMT-404

4-channel

27MHz transmitter witout label


 Click to enlarge
FMT-401NL

1-channel

FM Transmitter NL


 Click to enlarge
FMT-402NL

2-channel

transmitter without label

 Click to enlarge
FMT-404
NL
4-channel

transmitter with external switch

 


 Click to enlarge
FMT-401WNL

1-channel

27MHz transmitter with 2 external switches



 Click to enlarge
FMT-402WNL

2-channel

transmitter with external switch connections

 

 Click to enlarge
FMT-404WNL

4-channel

FMT-40..WNL Front

 Click to enlarge
Front view of FMT-40..WNL

Wire No label (WNL) – click here for instructions

Accessories (Available Seperately)

leater pouch
LP
Stylish Leather Pouch
alkaline battery
6LR61
9V Alkaline Battery
(For better performance)

Pictures are for illustration purpose only; final product may differ

 

Technical Data

Power Source

9 Volt Alkaline Battery

Battery Life

1 year shelf life

Supply Voltage

8-10 Volts DC (for constant RF-output)

Current Consumption

115mA (typical) at 8 Volts DC supply during transmission

Operating Frequency

27.145MHz (Other frequencies available: 27.045, 27.195 & 27.455MHz. NB. 27.455MHz is available for Europe Only)

Carrier Freq. Tolerance

Crystal controlled 30 parts per million (0-50 ° C)

Radiated Field Strength

73dBuV/m at 3m (±3dB) or 6uW

Antenna

Built-in 50mm proprietary DILEC rod

Type of Emission

Narrow-bandwidth Frequency Modulation (5K00F1D)

Bits per second

926bps

Necessary Bandwidth

±5.0kHz

Digital Coding System

Onboard 12-way coding switch (4096 codes) (FMT-404/FMT-402: 10-way)

Dimension

96 x 55 x 20 mm

Weight

70g (excluding battery)

Useable Operating Range

300m (varies upon receiver antenna & location)

Compatible Receivers

All Elsema type FMR series

Using FMT-402WNL and FMT-404WNL

To Use FMT-402WNL with a 2 channel receiver, and FMT-404WNL with a 4 channel receiver, just match the 10 way dip switch on the transmitter to the receiver.

Using 2 Different Receivers with FMT-402WNL

FMT-402WNL can also be used with 2 different single channel receivers e.g. FMR-212.

Make sure the 10 way dip switch on the transmitter board matches the first 10 dip switches on the receiver. Set the receivers dip switch 11 and 12 as described below.

When Button A is pressed, dip Switch 11 is transmitted as “ON” (Dip switch 11 on the Receiver is up)
When Button B is pressed, dip Switch 11 is transmitted as “OFF” (Dip switch 11 on the Receiver is down)

When wire link is connected (Factory default), dip switch 12 is “ON” (Dip switch 12 on the Receiver is up)
When wire link is disconnected (cut), dip switch 12 is “OFF” (Dip switch 12 on the Receiver is down). 
(see picture below for the location of the wire link)


FM Coding

 

Using 4 Different Receivers with FMT-404WNL
FMT-404WNL can also be used with 4 different single channel receivers e.g. FMR-212.  This can be setup as follows:

  1. Make sure the 10 way dip switch on the transmitter board matches the first 10 dip switches of the receiver.
  2. The receivers dip switch 11 and 12 configuration is illustrated below.   

Channel selection

Wiring Diagram for FMT-401WOP, FMT-402WNL, FMT-404WNL

FMT-401WCL uses a normally closed (NC) contact.

Connection diagram