Installation Instruction

1.2. ELECTRICAL INSTALLATION
1.2.1. General
Read the health and safety warnings in chapter 1.
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 branch circuit breaker and an overcurrent limiting device are
connected between mains and Remote Unit.
7. An external circuit breaker is mandatory as disconnect device. This circuit breaker should be readily
available for the operator.
For the U.S. and Canada, installation has to be done in accordance with the NEC (National
Electronic Code). The external circuit breaker has to be a branch circuit breaker rated 20 A for 110
Vac mains.
8. A field wiring box with conduit must be used for the installation. Use a wire harness rated for AC
mains with at least AWG14 size.
9. A connection of mains supply to a power socket requires the power socket to be nearby the Remote
Unit.
10. Incorrectly wired connections can destroy electrical and electronic components.
11. 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).
12. 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.
13. For unstabilized electric networks which frequently generate spikes, it is advised to use a voltage
limiting device.