RF Solutions 102 Radio Encoder Transmitter User Manual
RF Solutions Ltd. Radio Encoder Transmitter
User Manual

DS102-4 Sept ‘-02 ©2002 Reg. No. 227 4001, England Page 1
‘102 SERIES RADIO / IR ENCODER TRANSMITTERS
• Highly Secure Protocol
• QM, FM or Infra Red
• Frequency Options, 315, 433MHz
• LED Indication Of Transmission
• 1,2 or 4 Switch Versions Expandable To 15
• Power Saving Auto Shut Off Feature
• Automatically Transmits Battery Low Condition
• IP40 Rated Enclosure
• User Customisable Overlay
• Board Level Programmable
• EMC Compliant ETSI300-220
The RF Solutions 102 range of transmitter encoders are available as either FM, FMNB radio or Infra Red.
The encoders use the KEELOQ encryption algorithm providing the worlds most advanced high security
protocol. Each encoder may be used with one of RF Solutions decoders, or with one of the KEELOQ
decoder I/C’s.
Alternatively, the user may decode the KEELOQ algorithm and embed within a PIC Microcontrolller .
(Please see datasheet DS600).
When paired with one of the KEELOQ Rx decoder boards, a complete high security “code hopping” remote
control system may be achieved. The transmitter is supplied as a complete product with battery ready to
operate (PP3). Each encoder can be board level programmed with a specific manufacturer’s ID code if
required
Custom solutions may also be supplied unique to customer specific requirements. Please contact RF
Solutions for further information.
Block Diagram
KEELOQ
MCU
SW4 SW3 SW2 SW1 FM TX
LED
ANTENNA
V
CC
SW5-15
315MHz

DS102-4 Sept ‘-02 ©2002 Reg. No. 227 4001, England Page 2
‘102 SERIES RADIO / IR ENCODER TRANSMITTERS
Low Battery
When the unit measures a low battery voltage level, the data transmitted includes a ‘Low battery’ status
flag to the receiver decoder .
Power Supply
The circuit has been designed to operate from a single PP3 battery supply. This will provide in excess of
1,000,000 transmissions.
Note: reverse voltage polarity connection may cause damage to the circuit.
License Exemption (Radio Transmitters)
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."
KEELOQ Protocol Configuration
Each encoder is supplied ready programmed with a unique random serial number. The decoder has the
ability to memorise this serial number using a simple learn procedure (please see decoder datasheet).
How does KEELOQ technology work?
KEELOQ is based on a code hopping algorithm which provides Rock Solid Security. KEELOQ uses
a programmable 64-bit encryption key that is unique to each device to generate 32-bit hopping code.
The key length and hopping code combination reduces the possibility of unwanted access, due to
code grabbing and code scanning, to essentially zero. Such CIA-like levels of security are desirable,
but many manufacturers would expect them to be cost-prohibitive. KEELOQ offers the solution for
affordable, Rock Solid Security that is the future of technology for the cars, homes and offices we
wish to protect.
Adding Additional Switches
Additional switches may be added through Connector J1. The four connections of J1-1, 2, 3, & 4 represent
the four input lines to the HCS360 encoder device. These may be connected to a binary coded decimal
(bcd) input to obtain 1 of 16 states. Connection J1-6 is connected to VCC.
Absolute Maximum Ratings
Supply Voltage (VCC to GND) +5.5 to +15.8 Volts
Storage Temperature -10°C to +70°C
Operating Temperature 0°C to +55°C
Dimensions 110mm x 65mm x 24mm
Electrical Characteristics Min Typical Max Dimension
Supply Voltage 8 9 12 V
Supply Current 11 14 21 mA
Frequency
315MHz FM
433MHz QM / FM Wideband
433MHz FM Narrow band
915MHz Narrow band
434.050
914.50
315.00
434.075
914.50
434.100
914.50
MHz
RF Output Power (ERP) @ 433 MHz - 10 mW

DS102-4 Sept ‘-02 ©2002 Reg. No. 227 4001, England Page 3
‘102 SERIES RADIO / IR ENCODER TRANSMITTERS
‘FM102’ QM Series Encoders (Red Transmit LED)
Part Number Description Freq
(MHz) Range**
(Metres) Compatible
Decoders
102C1-433QR1 QM Encoder 1 Sw 433.92 150
102C2-433QR1 QM Encoder 2 Sw 433.92 150
102C4-433QR1 QM Encoder 4 Sw 433.92 150
FM-001B-433
FM-0011-433
FM-008C4B-433
U105C4A-433
‘FM102’ FM Series Encoders (Yellow Transmit LED)
Part Number Description Freq
(MHz) Range**
(Metres) Compatible
Decoders
102C1-315FR1 FM Encoder 1 Sw 315 200
102C2-315FR1 FM Encoder 2 Sw 315 200
102C4-315FR1 FM Encoder 4 Sw 315 200
AM-HiRK-315
008C4B-315FR1
102C1-433FR1 FM Encoder 1 Sw 433.92 200
102C2-433FR1 FM Encoder 2 Sw 433.92 200
102C4-433FR1 FM Encoder 4 Sw 433.92 200
008C4-433FR1
105C4A-433FR1
‘FM102’ Narrow Band Series Encoders (Red Transmit LED)
Part Number Description Freq
(MHz) Range**
(Metres) Compatible
Decoders
102C1-433NBFR1 FM Narrow Band Enc 1 Sw 434.075 300
102C2-433NBFR1 FM Narrow Band Enc 2 Sw 434.075 300
102C4-433NBFR1 FM Narrow Band Enc 4 Sw 434.075 300
105C4-433NBFR2
‘IR102’ Series Infra-Red Encoders (Red Transmit LED)
Part Number Description Range**
(Metres) Compatible
Decoders
102C1-IR2 Infra Red Encoder 1 Sw 20
102C1-IR2 Infra Red Encoder 2 Sw 20
102C1-IR2 Infra Red Encoder 4 Sw 20
IR-105C4A
Should you require further assistance please contact
R. F. Solutions Ltd.,
Unit 21, Cliffe Industrial Estate,
South Street,
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.