Sensaphone Express II - Manual (Page 15)

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Chapter 2: Installation
The main motherboard and plug-in cards also include a 3V lithium battery to retain user-
recorded messages and programming when the unit is turned off. Each battery will provide two
years of backup time while the unit is turned off and up to 10 years of intermittent use.
NOTE: Have the lithium battery serviced by qualified service personnel only.
TURNING EXPRESS II ON
Now that Express II has power, the ON-OFF switch may be turned on.
When the unit is turned ON, it will perform a series of diagnostic tests of its internal circuity.
When all of the tests have been completed, the unit will say, “Express II, OK.” The unit is now
operating and will respond to keypad commands and answer telephone calls.
Figure 3: On/Off Switch Location
PHONE LINE INSTALLATION
Connect Express II to a standard 2-wire analog phone line. Express II dials using pulse or tone,
with loop start only. Express II will operate with all standard telephone systems that accept
pulse or tone dialing and will recognize ringer frequencies from 16 to 60 Hz.
NOTE: Certain private telephone systems and public switching equipment may not accept
Express II dialing or may generate an unacceptable ring signal. In those cases, a dedicated
line may be required for Express II. Consult the supplier of your telephone system if you
encounter problems.
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.