Sensaphone 2800 User Manual

Page 27

Chapter 2: Installation

Backup Battery

The Sensaphone 2800 includes a 6V 3.4AH sealed lead-acid gel-
cell rechargeable battery for system back-up in the event of a power
failure. The battery will provide approximately 16 hours of backup
time. Actual backup time will depend upon the temperature, battery
age, dialing activity, and state of the relay output. The battery is
located behind the main panel.

The 2800 will automatically charge the battery whenever the
power switch is turned on and the power transformer is plugged
in. The battery should provide 3–5 years of service, depending
on temperature and charge/discharge cycles, before needing
replacement. See Appendix B for battery replacement instructions.

The 2800 also includes a 3V lithium battery to retain the date and
time when main power is off. The lithium battery should provide
8-10 years of service life.

NOTE: Have batteries serviced by qualified service

personnel only.

TELEPHONE LINE

Connect the 2800’s phone jack to a standard 2-wire analog phone
line. The unit dials using pulse or tone, with loop start only. The
2800 will recognize ringer frequencies from 16 to 60Hz and will
operate with all standard analog telephone systems that accept pulse
or tone dialing.

Certain private telephone systems and public switching equipment
may not accept the unit’s dialing or may generate an unacceptable
ring signal. In those cases, a dedicated line may be required for the
unit. 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 dis-

connected at the network interface. Use caution when

installing or modifying telephone lines.