User`s manual

. Other (Cable TV, Intercom) Wiring
. Electric Motors
. Key Systems, Business Phone Systems
. Dimmer Lighting controls
. Arc Welders
Verify a source by turning it off, if possible, or by
moving either it or the System 8300 component.
The second item, metalwork, may have effects
that are hard to predict. The frequency of the
transmitter was chosen to minimize this problem,
but the possibility does exist that larger surfaces
of metal will impede the radio waves. Some of the
large items to consider are:
. Foil Wallpaper
i-
. Stucco Walls (the wire mesh within them)
. Exterior Walls (foil vapor barrier)
. Exterior Walls (aluminum siding)
Other, smaller, metal items are not normally
consequential, but may occasionally have some
effects on wireless communication, especially if
devices are placed too close (less than 2 feet),
and in direct line with them. Typical items that
might warrant consideration are:
. Metal doors
. Mirrors (foil backing)
. Refrigerators
. Furnaces
. Large Metal Cabinets
. Substantial amounts of Air Distribution
Ductwork
Options
When having trouble with wireless communica-
tions you have these options.
1.
2.
3.
4.
5.
Move the transmitter. (One side of a
window to the other, one end of the hall to
the other)
Instead of the wireless sensor (PIR or
Smoke) use a regular sensor and wire its
contacts to the Universal Transmitter,
which may be mounted in a more desir-
able location (the sensor contacts will not
be supervised).
Move the CCU’s remote antenna coupling
assembly.
See if the configuration of the premises
can be changed (move a cabinet, etc.).
Use a hardwired device.
Installing
Wireless Components
This portion of the appendix is the wireless
addition to supplement the “Installing Specific
Devices” portion of Chapter 2. This portion
includes the receiver (Wireless Module), the
Remote Antenna Coupling Unit, the sensor/
transmitters (Smoke, PIR, and Universal), and the
wireless Remote/Transmitter keypad.
Wireless Module and Antenna
Model 8325
Description: The wireless module is only required
if wireless sensors or the wireless keypad are
being used. It is the receiver that fits inside the
CCU and relays the wireless signals to the CCU
circuitry.
AT&T Security System 8300 Installer’s Manual
A-3