RF Solutions 110 Keyfob Radio Encoder Transmitter User Manual
RF Solutions Ltd. Keyfob Radio Encoder Transmitter
User Manual

DS110-3 March ‘02 ©2002 Reg. No. 227 4001, England Page 1
110 / 106 SERIES KEYFOB ENCODERS RADIO / INFRA-RED
• Highly Secure Protocol
• AM Radio or Infra Red
• 1 – 3 Switch Options
• Led Indication of Transmission
• Directly Compatible With Keeloq Decoder
• Power Saving Auto Shut Off Feature
• Automatically Transmits Battery Low Condition.
• User Customisable Housing
• Board Level Programming of ID
• Range:
⇒ AM-315MHz Upto 50m
⇒ AM-433MHz Upto 100m
⇒ Infra Red Upto 20m
• 433MHz version CE Compliant for use in Europe
• 315MHz FCC Compliant for use in USA
DESCRIPTION
The RF Solutions KEELOQ range of miniature pocket Keyfob encoders are available as Radio of Infra Red
transmitters.
When paired with one of the KEELOQ Rx decoder boards, a complete remote control system may be
achieved, with comprehensive interfacing capabilities. This may also be high security “code hopping”
The keyfobs are housed in a tough ABS enclosure and supplied with Battery ready to operate.
An membrane overlay sticker is used to indicate the switch positions which may be customised to
incorporate a specific logo or mark.
BLOCK DIAGRAM
KEELOQ
MCU
SW3 SW2 SW1 RF TX
LED
ANTENNA
9 - 12V
315MHz

DS110-3 March ‘02 ©2002 Reg. No. 227 4001, England Page 2
110 / 106 SERIES KEYFOB ENCODERS RADIO / INFRA-RED
‘110’ Series Keyfob Encoders
Part Number Description Freq
(MHz) Range**
(Metres) Compatible
Decoders
110C1-315AR1 AM Transmitter Keyfob 1 Sw 315.0 50
110C2-315AR1 AM Transmitter Keyfob 2 Sw 315.0 50
110C3-315AR1 AM Transmitter Keyfob 3 Sw 315.0 50
AM-HiRK-315
AM-110C1-433 AM Transmitter Keyfob 1 Sw 433.92 100
AM-110C2-433 AM Transmitter Keyfob 2 Sw 433.92 100
AM-110C3-433 AM Transmitter Keyfob 3 Sw 433.92 100
AM-HiRK-433
AMS-001B-433
AMS-0011-433
AMS-008C3B-433
AMS-105C3A-433
‘IR’ Series Infra Red Keyfob Encoders
These products use the HCS360 Keeloq Encoder Device
Part Number Description Range**
(Metres) Compatible
Decoders
AM-106C1-433 IR Transmitter Keyfob 1 Sw 20
AM-106C2-433 IR Transmitter Keyfob 2 Sw 20
AM-106C3-433 IR Transmitter Keyfob 3 Sw 20
IR-105C4A
** Range stated is optimum, direct line of sight. In worst conditions this can be reduced by upto 50%
Mechanical Details
36mm
66mm
Operation
The Tx encoder transmits the KEELOQ code for as long as any push-button switch is depressed.
Operation of the Tx encoder buttons will cause either a momentary or a latching action at the Rx decoder,
depending on the configuration of the Rx decoder.
Battery Supply
The keyfob is supplied with a standard cigarette lighter 12V battery type GP23A or equivalent.
Low Battery
When the unit measures a low battery voltage level, the data transmitted includes a ‘Low battery’ status
flag to the receiver decoder.
Auto Shutoff Feature
After 26seconds of continuous transmission the Keyfobs are programmed shut down. This is to prevent the
battery being drained through accidental operation (i.e. if it is in the users pocket!).

DS110-3 March ‘02 ©2002 Reg. No. 227 4001, England Page 3
110 / 106 SERIES KEYFOB ENCODERS RADIO / INFRA-RED
License Exemption
Europe: The transmitter encoders use ECM compliant radio transmitter modules and complies with
ETSI330-220 and ETSI300-683.
USA: 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."
Technical Specification
Max Storage Temperature -10°C to +70°C, Max Operating Temperature 0°C to +55°C
Electrical Characteristics Min Typical Max Dimension
Supply Current (Transmitting) 9 12 16 mA
Frequency 315MHz version 315.00 MHz
Frequency 433MHz version 432.90 433.920 434.100 MHz
Output Power (ERP) @ 433.92 MHz 10 mW
Further Information: Developing a Keeloq Based Decoder System
The RFEVAL2 is a Evaluation Kit consisting of a several transmitter encoders and receiver decoder
board. This kit provides a hardware development platform capable of accepting a variety of radio
modules and antennae to enable the engineer to develop a Remote Telemetry application.
The kit provides a hardware development platform for:
• Embedding Telemetry
• Producing a Decoder with RS232 Output
• Range Testing
• Target Environment Testing
• Antenna Evaluation
This enables the engineer to select the optimum radio modules, antenna type and get a radio
application working with the minimum time. Please see Datasheet DS123 Full schematics and
parts list supplied.
R. F. Solutions Ltd.,
Unit 21, Cliffe Industrial Estate,
Lewes, E Sussex, BN8 6JL, England
Tel +44 (0)1273 898 000 Fax +44 (0)1273 480 661
Email sales@rfsolutions.co.uk
http://www.rfsolutions.co.uk
R F Solutions is a member of the Low Power Radio Association.
All Trademarks acknowledged and remain the property of the respected owners.
Information contained in this document is believed to be accurate, however no representation or warranty is given and R.F. Solutions Ltd. assumes no liability with respect to the accuracy of such
information. Use of R.F.Solutions as critical components in life support systems is not authorised except with express written approval from R.F.Solutions Ltd.