DS102-5

Oct ‘-03

©2003 Reg. No. 227 4001, England

Page 2

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

Absolute Maximum Ratings

+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

433.92

434.075

914.50

434.100

914.50

MHz

RF Output Power (ERP) @ 433 MHz

-

10

mW