3.2.
ELECTRICAL INSTALLATION
3.2.1. General
Read the health and safety warnings in chapter
1.2 Health and Safety Warnings
.
1. This unit contains dangerous voltages. Loss of life, severe personal injury or
property damage can be the result if the instructions contained in this manual are
not followed.
2. It is compulsory to ground the unit before connecting power supply. A grounding
bolt is provided on the cabinet to connect the ground-bonding cable.
3. Although the remote unit is internally protected against overvoltage, it is strongly
recommended to earth the antenna cables close to the antenna connectors of the
remote unit for protection against atmospheric discharge. In areas with strong
lightning it is strongly recommended to insert additional lightning protection.
4. If the mains connector of the remote unit is not easily accessible, a disconnect
device in the mains circuit must be provided within easy reach.
5. Before connecting or disconnecting the mains connector at the remote unit,
ensure that mains supply is disconnected.
6. Make sure that an appropriate circuit breaker and an overcurrent limiting device
are connected between mains and remote unit.
7. A connection of mains supply to a power socket requires the power socket to be
nearby the remote unit.
8. Incorrectly wired
connections
can destroy electrical and electronic components.
9. To avoid corrosion at the connectors caused by electrochemical processes, the
material of the cable connectors must not cause a higher potential difference than
0.6 V (see electrochemical contact series).
10. Use an appropriate torque wrench for the coupling torque (25 N-m / 19 ft lb) of
7/16-DIN connectors with 1 ¼-inch opening to tighten the 7/16-type antenna
connectors. For example, use torque wrench of item no. 244377 available from
the
Andrew
e-catalog
. Do NOT use your hands or any other tool (e.g. a pair of
pliers)! This might cause damage to the connector and lead to a malfunction of
the Remote Unit.
11. For unstabilized electric networks which frequently generate spikes, it is advised
to use a voltage limiting device.
12. The unit complies with the surge requirement according to EN 61000-4-5 (fine
protection); however, it is recommended to install an additional medium (via local
supply connection) and/or coarse protection (external surge protection) depending
on the individual application in order to avoid damage caused by overcurrent.
13. Observe the labels on the front panels before connecting or disconnecting any
cables.
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