User's Manual

4. Commissioning
Page 22
7.Manual MF0200A0A ION-U_EU H 19P2_uc_08-July-13.docx
User
’
s Manual for ION
®
U
4.2. Electrical Installation
4.2.1. General
Read the health and safety warnings in chapter 1.2.
1. Warning: 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. Caution: It is compulsory to ground (earth) the unit before connecting the power
supply. A grounding bolt is provided on the cabinet to connect the ground-bonding
cable.
3. Caution: Although the remote unit is internally protected against overvoltage, it is
strongly recommended to ground (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 install additional
lightning protection.
4. Caution: If the mains connector of the remote unit is not easily accessible, a
disconnect device in the mains power circuit must be provided within easy reach.
5. Caution: Before connecting or disconnecting the mains connector at the remote
unit, ensure that mains power supply is disconnected.
6. Caution: Make sure that an appropriate circuit breaker acting as a disconnect
device (as required by IEC/EN60950-1) and an overcurrent limiting device are
connected between mains power and the Remote Unit.
7. Caution: A connection of the mains supply to a power socket requires the power
socket to be nearby the remote unit.
8. Caution: Incorrectly wired connections can destroy electrical and electronic
components.
9. Caution: 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. Note: Use an appropriate torque wrench to tighten the 7/16 DIN-type (1 ¼ -inch
opening) antenna connectors to a coupling torque of 25 N-m / 19 ft lb. Torque
wrench item no. 244377, available from the CommScope e-catalog, is
recommended. 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 or increased PIM.
11. Caution: For unstabilized electric networks, which frequently generate spikes, the
use of a voltage limiting device is advised.