Panasonic KX-HTS824 - Page 45

3.2.9 Backup Battery Connection
3.2.9 Backup Battery Connection
The backup batteries and Back-up Battery Cable provide a backup power supply to allow full use of the PBX
in the event of a power failure. In case of power failure, the backup batteries automatically maintain the power
to the PBX without interruption.
User-su
pp
lied Items
• Backu
p
Batteries: VRLA
(
Valve Re
g
ulated Lead Acid
)
12 V DC x 1
• Back-u
p
Batter
y
Cable: KX-A227
WARNING
• There is a danger of explosion if backup batteries are incorrectly replaced. Replace only with
the same or e
q
uivalent t
yp
e recommended b
y
the batter
y
manufacturer. Dis
p
ose of used
batteries according to the manufacturer’s instructions.
• Make sure that
y
ou do not short the backu
p
batteries or cables.
CAUTION
• Make sure that the Back-up Battery Cable is securely fastened to both the backup batteries and the PBX.
• Make sure that the polarities of the backup batteries and wiring are correct.
• Use the correct type of Back-up Battery Cable for the PSU.
Notice
Be sure to comply with applicable local regulations (e.g., laws, guidelines).
Note
• The recommended maximum ca
p
acit
y
is 28 Ah, to maintain effective batter
y
char
g
e.
• The Back-up Battery Cable should not be exposed to direct sunlight. Keep the Back-up Battery Cable
and the backup batteries away from heating appliances and fire. Place the backup batteries in a
ventilated place.
• For details about the backu
p
batteries, refer to the manual for the batteries.
Backup Power Supply Duration
Examples
*1 The duration may vary depending on the conditions.
Battery Capacit
y
Backup Power Supply Duration*1
28Ah 16 h