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Chapter 2: Installation
7
service). If you have four-pin jacks, adapters are available to
convert them to the modular plugs. Contact your local
telephone company or electronics parts store.
CAUTION
Never install telephone wiring during a lightning
storm. Never install telephone jacks in wet
locations unless the jack is specifically designed
for wet locations. Never touch uninsulated
telephone wires or terminals unless the telephone
line has been disconnected at the network
interface. Use caution when installing or
modifying telephone lines.
To install the telephone line, plug the modular telephone jack
provided into any standard RJ11 phone outlet. Refer to
Figure 2-4.
2341
GND GND GNDGND
AC Power
Transformer
(plug into
120 VAC outlet)
RJ11 Outlet
(for modular
telephone jack)
Modular Telephone Jack
(plug into RJ11 outlet)
Female Telephone Jack
(connect telephone here)
Figure 2-4. Installing the Telephone Line
On the back of the OMA-P1104 is a female telephone jack.
This is provided so that a telephone or other answering device
may be used on the same line as the unit. It is not necessary to
hook up a telephone for the OMA-P1104 to operate.
2.8 The Microphone
The OMA-P1104 is provided with a built-in microphone which
is used to monitor high sound levels produced near the installa-
tion site. The sensitivity of the microphone is configurable and
will detect a continuous as well as a beeping alarm.
Other programming options that apply to the microphone
include setting the length of time before a high sound causes an