Motorola Horizonmacro outdoor, Руководство по установке и настройке, Страница: 76 / 212

GSM-204-423 Installing and connecting power and earth cabling
31st Oct 01
Inst. 3–20
Installation & Configuration: Horizon macro outdoor
CONTROLLED INTRODUCTION
68P02902W03-A
Cabinet
earthing points
The main earth connection point is located on the earth/connector plate on the
cable entry side. This connection is for protective earthing, lightning protection
and functional earthing of the cabinet.
To earth the BTS cabinet:
1. Ensure the M8 chassis earth studs, located in rear corners of the top
section, are connected to the BTS cabinet earth plate.
2. Connect the earth plate stud to the site earth using a 35 mm
2
cross-sectional area, green and yellow sheathed, stranded conductor.
Additional internal earths are:
Two M8 chassis earth studs, located in rear corners of the top section.
Number 1 ac distribution box in the top section.
Number 2 ac distribution box in the power supply unit (PSU).
PSU cage earth stud, located behind the number 2 ac distribution box.
An M6 threaded stud on the top interface panel, adjacent to the dc input.
Main cage to underside of interface panel above PSM.
AC socket to underside of interface panel at rear of panel.
Earth bonding from doors and lid to the cabinet chassis.
Earth bonding from the TMS heat exchanger to the cabinet chassis.
Power supply
cable colour
coding
To connect an outdoor cabinet to the EXTERNAL ac power source, observe the
following rules.
Single-phase supply
For single-phase ac connections:
The line power cable is brown or red.
The neutral cable is blue or black.
The earth cable is green and yellow.
Three-phase supply
For three-phase ac connections:
The phase A power cable is red.
The phase B power cable is blue.
The phase C power cable is yellow.
The neutral cable is black.
The earth cable is green and yellow.