Grounding Requirements; Control Unit Space Requirements - Lucent Technologies MERLIN LEGEND Release 7.0 System Planning Manual

MERLIN LEGEND Communications System Release 7.0
System Planning 555-670-112
1 Before You Begin
Confirming the Location of the Control Unit
Table 1-2.

Control Unit Space Requirements

Part...
Carrier
Basic carrier
Basic carrier + 1 expansion carrier
Basic carrier + 2 expansion carriers
Backboard
®
Without Systimax
With Systimax
It is important that the location selected for the control unit meets all of these
specifications and that the backboard is in place before installation. If the location
has already been selected and changes are needed, arrange for these changes
before installation.

Grounding Requirements

Proper grounding of the installation site is essential for correct and safe
functioning of the system. Grounding protects the system against:
Lightning
Power surges
Power crosses on outside lines/trunks
Electrostatic discharge (ESD)
The telephone company is responsible for providing protection of outside lines/
trunks at the entrance to the site. The protection should consist of:
Carbon blocks or gas-discharge tubes connected to an approved ground.
Adequate bonding of the outside line/trunk protector ground and the
power-company ground.
Requirements...
14 inches wide x 23 inches high x 12 inches deep
(35.6 cm. x 58.4 cm. x 30.5 cm.)
25 inches wide x 23 inches high x 12 inches deep
(63.5 cm. x 58.4 cm. x 30.5 cm.)
37 inches wide x 23 inches high x 12 inches deep
(94 cm. x 58.4 cm. x 30.5 cm.)
6 feet wide x 3 feet high x 3/4 inches deep
(182.9 cm. by 91.4 cm. x 1.9 cm.)
7 feet wide x 4 feet high x 3/4 inches deep
(213.4 cm. x 121.9 cm. x 1.9 cm.)
1
Issue 1
April 1999
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