2.3 Power Surge Protection
The Model 800 can be damaged by power surges and lightning
through the telephone line and the 120 VAC power supply.
Although the Model 800 has built-in surge protection, we
recommend that additional protection be obtained for the unit
and for any electronic equipment that is attached to your power
supply and telephone lines. Power surge protection is especially
important if you live in a lightning-prone area. The ISOTEL
Surge Protector Model IB-4 is available through Sensaphone. See
Appendix D.
2.4 Power Supply and Battery Backup
The Model 800 is provided with a DC 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 Model 800 uses six, C-cell alkaline
batteries. Do not use rechargeable batteries. Connect the DC
power transformer into the jack on the back of the unit and plug
the adapator into a 120VAC outlet
NOTE
Be sure that the DC transformer is plugged into an
outlet before installing batteries.
To install the batteries, remove the battery compartment door
located on the front of the unit below the keypad. Press down and
slide the door away from the unit, align batteries according to the
diagram shown in Figure 2-2, and replace the hatch.
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Figure 2-2. Battery Installation
Sensaphone
®
Model 800 User’s Manual
23
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