
3
1 B: Components
Controller
The Controller contains the system’s main electronics,
RF receiver, communicator and back-up battery. The
Controller is connected to an AC outlet and the
telephone line. The Controller requires:
• AC Adaptor labelled “Controller”
• One 6V 1.2Ah battery
Controller Operating Temperature Range:
• 0°C to 50°C (32°F to 122°F)
Keypad
The Keypad is used to operate the system and displays
operating instructions and system information in clear,
easy-to-understand language. The Keypad requires:
• Four AA Batteries
NOTE:
The keypad is shipped with 8 AA batteries.
One set of four batteries should be used for installation
and programming. When you are done installing and
programming the WLS900 system, replace the
batteries in the keypad with the second supplied set.
For more information, see section 3A “Enrolling the
First Keypad”, on page 7.
Keypad Operating Temperature Range:
• 0°C to 50°C (32°F to 122°F)
Sounder
The WLS903 Sounder is used to sound an alert when
an alarm occurs. It is used to indicate that system
functions are being performed. It also performs the
task of a RF Signal Repeater. The Sounder is connected
to an AC outlet. The Sounder requires:
• AC Adaptor labelled “Sounder”
• Four AA Batteries
Sounder Operating Temperature Range:
• 0°C to 50°C (32°F to 122°F)
WLS911 Siren
The WLS911 wireless siren is an exceptionally loud
unit with the same functions as the WLS903. It also
has a rechargeable backup battery and an output
for an additional sounding device which will only
operate when the system is in alarm.
Siren Operating Temperature Range:
• 0°C to 50°C (32°F to 122°F)
Motion Detector
The WLS904 Motion Detectors are passive infrared
motion detectors. Each Motion Detector requires
• Four AAA Batteries
Motion Detector Operating Temperature Range:
• 0°C to 50°C (32°F to 122°F)
Chapter 1: Overview
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