User Instructions

1.2. ELECTRICAL INSTALLATION
1.2.1. General
Read the health and safety warnings in section 1.3.
1. This unit contains dangerous voltages. Loss of life, severe personal injury or property dam
age can be
the result if the instructions contained in this manual are not followed.
2. 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 over-voltage, 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 highly 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 over-current 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 of N-type connectors (2 N-m / 20 in lb),
with 13/16 inch opening to tighten the N-type antenna connectors. For example, use torque wrench
of item no. 244379 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. Use a voltage limiting device for unstabilized electric networks that frequently generate spikes.
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.