Radio Shack Two-Zone Burglar Alarm System - Manual (Page 11)

11 Preparation
protected area, the pattern of the sound waves changes,
signaling the alarm center to sound the alarm.
• Infrared — Work like ultrasonic motion detectors,
except that they use invisible infrared light instead of
high-frequency sound to detect motion.
• Microwave — Work like ultrasonic motion detectors,
except that they use radio waves instead of high-fre-
quency sound to detect motion.
Some motion detectors have a built-in alarm sounder and
can be connected directly to an alarm siren or other sound-
ing device.
If the type of motion detector you select has tamper protec-
tion, you might need six-conductor hook-up wire to connect
it to the alarm center. Otherwise, you need four-conductor
hook-up wire to connect motion detectors.
Panic Buttons and Tamper Switches — Are normally-
open types of sensors. A panic button lets you sound the
alarm at any time, even if the alarm center is not armed. A
tamper switch instantly sounds the alarm if someone tries to
open the secured object. You can mount these switches on
the alarm center, a gun cabinet, or anywhere you want the
alarm to instantly sound if you press the switch or someone
tampers with it.
Sirens and Lights
Pre-Alarm Buzzer — When the alarm system is armed and
a delayed zone is activated, the alarm center activates a
pre-alarm for the amount of time you set (see “Setting the
Entry and Exit Delay” on Page 17). After that delay time
elapses, the alarm system sounds the alarm siren and other
connected security equipment. When the battery is low, the
pre-alarm sounds for 5 seconds per minute. To hear the pre-
alarm, you must connect a small sounding device such as a
piezo buzzer to the alarm center.
Mount the device where you can hear it during the entry de-
lay. Do not mount it on or near the alarm center. The sound
might lead an intruder to find the alarm center and possible
disable the systems.
Alarm Siren — When a sensor is activated and the system
is armed (or the panic/tamper zone is violated), the system
can activate an alarm siren connected to the alarm center.
Mount the siren outside your home where you, your neigh-
bors, and the police can hear it. If you mount it in an area
that is not protected by the alarm system (such as an out-
side eave), mount it inside a siren enclosure to discourage
tampering.
Security Strobe — When a sensor is activated and the sys-
tem is armed (or the panic/tamper zone is violated), the sys-
tem can activate a security strobe or other types of lights
connected to the alarm center.
Note: You can connect a security strobe to the same out-
puts on the alarm center as you use for the alarm siren. For
more information, see “Connecting a Siren and/or Lights” on
Page 14.
When deciding where to install a security strobe, choose a
location outside your home where the strobe’s light is highly
visible.
Automatic Telephone Dialer
For a higher level of security, you can connect an automatic
telephone dialer to your alarm system. We recommend
RadioShack Cat. No. 49-434 (available at your local
RadioShack store).
An automatic telephone dialer connects to your phone line
and automatically calls one or more preset phone numbers if
the alarm sounds.
Note: Many automatic telephone dialers can use the alarm
system’s battery power to dial numbers if AC power is
disconnected.
When deciding where to install an automatic telephone dial-
er, select a location that is:
• Near a phone jack
• Near an AC outlet
• Not easily accessible to an intruder
Cautions:
• If you connect an automatic telephone dialer to your sys-
tem and want to program it to call your local police
department, check with them first. Some police depart-
ments do not accept calls from automatic telephone dial-
ers. If your police department does not accept calls from
automatic dialing equipment, you can program it to call a
friend or private security service who can notify the
police department, if necessary.
• Some automatic telephone dialers deliver a prerecorded
voice message to the desired number when activated,
while others transmit an electronic signal to a private
security service. In most cases, private security services
charge a fee to accept calls from automatic dialing
equipment. For more information, call the police depart-
ment and private security services in your area.
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