Confidential
Chapter
3
Connecting
Cables
RF4402d Series Installation Manual v1.0
69
Copyright © 2018, All Rights Reserved.
Grounding
Grounding is the process of operating an electronic system (for example. power
supplying system, communication system, and control system) stably from a
lightning, transient-current, transient-voltage and electric noise and of preventing
injury from electric shock.
Ground equipment minimizes the electrical potential of the electronic device to
that of the ground, which is zero electrical potential, so that it can prevent the
device from occurring electrification.
Connect the ground cable first. In cabling, the connection of cables without the
connection to the ground cable may cause damage of the equipment or bodily
injury to personnel.
The purposes of the ground construction are as follows:
To prevent human life and the system from over-current, over-voltage, and
lightning
To provide a discharge path for surge voltage generated by lightning and
power switch
To protect the system from static electricity
To eliminate or minimize the high-frequency potential in the system housing
To provide a conductor for the balance and stability of high-frequency current
To stabilize the potential of the circuit against the ground
Connecting Ground Cable
Connecting RRH Ground Cable
To connect RRH Ground Cable
1
Make sure you have the following items:
Table 25. Parts and Tools for connecting RRH Ground Cable
Category
Description
Installation Section
MGB~RRH Ground Terminal
Cable
6 AWG × 1C
Bend Radius
8 × OD
Heat Shrink Tube
(Spec/Color/Length)
Ф
0.47 in. (12 mm)/Clear/1.96 in. (50 mm)
Pressure Terminal
MGB
Checking MGB specifications per site and preparing connecting parts
RRH
6 AWG, 2 Hole, Hole diameter:1/4 in. (6.4 mm), Hole spacing: 0.63 in. (16
mm)
Fastener
MGB
Checking MGB specifications per site and preparing connecting parts
