User's Manual

DS102-4 Sept ‘-02 ©2002 Reg. No. 227 4001, England Page 2
‘102 S
ERIES
R
ADIO
/ IR E
NCODER
T
RANSMITTERS
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 V
CC
.
Absolute Maximum Ratings
Supply Voltage (V
CC
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