3 power surge protection, 4 power supply and battery backup, Omegaphone – Omega OMA-P1104 User Manual
Page 18
Omegaphone
®
OMA-P1104 User’s Manual
4
3
13
16
"
Figure 2-1. Wall Mount
2.3 Power Surge Protection
The OMA-P1104 can be damaged by power surges and
lightning through the telephone line and the 120 VAC power
supply. Although the OMA-P1104 has built-in surge protection,
we recommend that ad
ditional pr otection be obtained f
or
the unit and f or an y electr onic equipment that is attac
hed to
your po wer suppl y and telephone lines.
Power sur ge protec-
tion is especiall
y impor tant if y ou live in a lightning-pr one
area.
2.4 Power Supply and Battery Backup
The OMA-P1104 is provided with an AC power transformer
that will plug into any standard 120 VAC outlet and a battery
backup (batteries not included) that enables the unit to continue
functioning if AC power is removed (due to electric power
disruption or failure). The OMA-P1104 uses six, D-cell
alkaline batteries. Do not use rechargeable nicad batteries.
NOTE
Be sure that the AC transformer is plugged into
an outlet before installing batteries.
To install the batteries, open the battery compartment hatch
located underneath the unit, align batteries according to the
diagram shown in Figure 2-2, and replace the hatch.