Andrew Wireless Innovations Group RPT-NODEC1943 用户手册
User’s Manual for Node C Network Elements
Page 20
PRELIMINARY M0121A1A_uc.doc
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.
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.
cable.
3. Although the unit is internally protected against overvoltage, it is
strongly recommended to earth the antenna cables close to the unit’s
antenna connectors for protection against atmospheric discharge. In
areas with strong lightning it is strongly recommended to insert
additional lightning protection.
antenna connectors for protection against atmospheric discharge. In
areas with strong lightning it is strongly recommended to insert
additional lightning protection.
4. Hard wired installation of mains supply for the unit requires an easily
accessible separation device in the mains circuit.
5. Make sure that an appropriate circuit breaker and an overcurrent limiting
device are connected between mains and the unit.
6. A connection of mains supply to a power socket requires the power
socket to be nearby the unit.
7. The unit might be supplied from IT mains. (The maximum nominal line to
line voltage must not exceed 400VAC).
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 0.6V (see electrochemical contact series).
potential difference than 0.6V (see electrochemical contact series).
10. It is sufficient to tighten the 7/16 or N antenna connector hand-screwed.
Any use of a tool (e.g. pair of pliers) might cause damage to the
connector and thus lead to malfunctioning of the unit.
connector and thus lead to malfunctioning of the 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.
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 any cables.