User`s manual

Hardwired Zone Sensors
System 8300 accepts up to sixteen hardwired
zones. As with all hardwired zones, no sensor in
any one zone can be differentiated from any
other. Hardwired zone sensors offer a convenient
and inexpensive way to provide a single type of
protection for a large area, using a large number
of sensors without the cost and complexity of
identifying and treating each sensor separately.
Supervision is by end-of-line resistor.
Wireless Remote/Transmitter
Keypad (Model
8440)
This device (see Figure 1-4) provides some of the
keypad services, but also has some very different
characteristics. It can accept its own special
Access Code (not the same as the codes pro-
grammed into the rest of the system), and set the
system to three of its four possible levels (provid-
ing a portable system keypad, for special require-
ments). Its ALARM button is the same as POLICE
buttons on the other keypads. In addition, it has
terminals to accept a hardwired external sensor
(or sensors), a tamper switch, and a button to
bypass that sensor for a short (40 second) exit
period. It beeps to indicate keypresses and
transmission of a change-of-protection-level to the
CCU
Figure 1-4 Wireless Remote/Transmitter
Since it is a wireless unit, it requires a battery for
operational power. Like the other wireless de-
vices, it will indicate a low battery condition to the
CCU at least seven days before it actually stops
working.
Wireless Smoke Detector (Model 8520)
This device (see Figure 1-5) is a photoelectric
detector that, when activated, transmits a wireless
message to the CCU. This smoke detector is
battery powered and does not require any wiring.
light
Figure l-5 Wireless Smoke Detector
The red LED on the case flashes about every 7
seconds, to indicate proper operation. If smoke is
detected, the LED will light, the device will imme-
diately begin to sound its alarm, and will transmit
an alarm signal to the CCU, which will respond as
programmed.
A pushbutton on the case will test the detector
and send the alarm signal to the CCU.
A
WARNING:
To avoid false alarms, set the system to the
Test mode before testing the detector,
AT&T Security System 8300 Installer’s Manual
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