Lucent Technologies 555-661-140 manual Merlin Legend Communications System Release

MERLIN LEGEND Communications System Release 6.1	Issue 1
Installation 555-661-140	August 1998
Installing the Control Unit	Page 2-11
AC Power and Grounding

■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 Figure 2–3.

■The AC outlet and the single-point ground bar must be properly grounded as shown in Figure 2–1 and Figure 2–3.

■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. Figures 2–1 and 2–3 show this connection.

■This wire run should be as short as possible, preferably within 5 ft. (152 cm), not to exceed 10 ft. (305 cm). See “Approved Grounds,” later 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.