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Installation of an Ground Rod
Trunk
PBX
Ground Rod
(Underground)
Surge Protector
Grounding
Wire
1.
Connect the ground rod to the surge protector using a grounding wire with a cross-sectional area of at
least 1.3 mm
2
.
2.
Bury the ground rod near the protector. The grounding wire should be as short as possible.
3.
The grounding wire should run straight to the ground rod. Do not run the wire around other objects.
4.
Bury the ground rod at least 50 cm (20 in) underground.
Note
•
The above figures are recommendations only.
•
The length of ground rod and the required depth depend on the composition of the soil.
3.2.10 Backup Battery Connection
The backup battery 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 battery automatically maintains the
power to the PBX without interruption.
User-supplied Items
•
Backup Battery: VRLA (Valve Regulated Lead Acid) 12 V DC × 1
•
Back-up Battery Cable: KX-A227
WARNING
•
There is a danger of explosion if a backup battery is incorrectly replaced. Replace only with the same
or equivalent type recommended by the battery manufacturer. Dispose of used batteries according to
the manufacturer’s instructions.
•
Make sure that you do not short the backup battery or cables.
CAUTION
•
Make sure that the Back-up Battery Cable is securely fastened to both the backup battery and the
PBX.
•
Make sure that the polarities of the backup battery and wiring are correct.
•
Use the correct type of Back-up Battery Cable for the PBX.
Notice
Be sure to comply with applicable local regulations (e.g., laws, guidelines).
3.2.10 Backup Battery Connection
Getting Started
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