Environment - Lucent Technologies MERLIN LEGEND Release 5.0 Installation Manual

MERLIN LEGEND Communications System Release 5.0
Installation 555-650-140
Installing the Control Unit
Overview

Environment

The control unit must be installed on a backboard. The placement of the
backboard, and the control unit on it, requires careful consideration. Make sure
you install the backboard in an area that meets all of the environmental
requirements listed in
Table 2-1. Environmental Requirements
Operating
Temperatures
Humidity
Airborne
Contamination
Ventilation
Electrical Fields
Heat
Dissipation
!
!
WARNING:
Do not install the control unit outdoors.
Table 2-1.
o o o o
40 104 F (4 40 C)
– –
Optimal temperature: 60
20%–80%
Do not expose the control unit to moisture, corrosive gases,
dust, chemicals, spray paint, or similar material.
Allow at least 1 in. (2.54 cm) on the right and left sides of the
control unit and at least 12 in. (30.48 cm) above and below it
to prevent overheating.
Do not place the control unit near extreme heat sources (for
example: furnaces, heaters, attics, or direct sunlight).
Do not expose the control unit to devices that generate
electrical currents causing interference (such as arc welders
or motors).
Basic carrier: 500 Btu/hr
Basic carrier: with one expansion carrier 1000 Btu/hr
Basic carrier: with two expansion carriers 1500 Btu/hr
o
o
F (15.6 C)
Issue 1
June 1997
Page 2-2