Lucent Technologies MERLIN LEGEND Release 5.0 Installation Manual page 60

MERLIN LEGEND Communications System Release 5.0
Installation 555-650-140
Installing the Control Unit
AC Power and Grounding
The control unit, the central office trunk protector, and the AC power
service panel should be as close to each other as possible.
Because equipment can be located throughout a building, the National
Electrical Code requires that the ground point for the central office trunk
protector be bonded to the AC power ground as shown in
The AC outlet and the single-point ground bar must be properly
grounded as shown in
Each power supply in the control unit must be connected to the
single-point ground bar by a #12 AWG or a #14 AWG solid copper wire.
Figure 2-1
This wire run should be as short as possible, preferably within 5 ft.
(152 cm), not to exceed 10 ft. (305 cm). See
in this chapter, for more information.
The AC outlet must be connected to the 147A protector with a #12 AWG
or a #14 AWG solid copper wire.
Figure 2-1
and Figure 2-3 show this connection.
and Figure 2-3.
''Approved
Issue 1
June 1997
Page 2-11
Figure 2-3.
Grounds'', later