2.3 LOCATION AND MOUNTING OF EQUIPMENT
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V
F L O O R L E V E L
M A I N E Q U I P M E N T
S Y S T E M
DISTRIBUTING
F R A M E
O P T I O N S
P O W E R
. R I N G
UNIT
. C A L L M E T E R I N G
UNIT
PPLY
m i n .
I
FIGURE 32 LIMITATIONS ON WALL MOUNTING
All items of equipment must be located in positions which allow good access for maintenance
activities. The customer is responsible for providing satisfactory lighting for installation and
maintenance activities at the equipment. When wall mounting equipment, allowance should be
made for at least 30 cm clear wall space on each side and 1 metre of clear floor space in front of
the units.
The Main Equipment, Power Supply, System Distributing Frame, Call Metering Units, Remote
Extension and Tie Line Interface Unit and Ring Generator Unit must be mounted on a wall at
least 38 cm from the floor and no higher than
from the floor as indicated on figure 32.
The customer will provide a single phase 200-250 volt, 10 amp, 50 Hz AC general purpose
outlet within 1 metre of the equipment. The power outlet must be correctly earthed.
Due to the weight of the equipment, particularly the Power Supply, care should be exercised in
the selection of the mounting position.
Both the Main Equipment and the Power Supply are to be wall mounted as shown in figure 32.
Equipment may be mounted directly to solid brick walls or similar. For hollow structures, such
as plaster-board walls or partitions, a suitable sized back-board should be firmly secured to the
wall studs (or other supporting members) and the equipment
to the back-board.
Where equipment is to be mounted on solid brick walls or similar, suitable masonary anchors
should be used in lieu of the mounting screws.
Further mounting details for the Main Equipment and Power Supply are provided in section
2.3.1 and 2.3.2 respectively.
While mounting equipment refer to the drawings of the components in section 1.5.
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