NEC UX5000 - Grounding the Chassis; Connecting the System Ground (Figure 1-97 - Figure 1-99)

Chapter 1 - Installing the Chassis
Chapter 1 1 - 73
SECTION 1-8
GROUNDING THE CHASSIS
1.8.1 Connecting the System Ground (Figure 1-97 - Figure 1-99)
● From the factory, the SG, ETH and PBXG grounds are located inside the chassis and are connected to
the FG ground (frame ground) on the back of the Chassis-B.
● Each 9.5” Chassis-B or 19” Chassis-A in the system must be grounded separately following the step
below.
1. Ground each 9.5” Chassis-B or 19” Chassis-A by connecting a 14 AWG wire from the FG lug on the back
side of the chassis to an electrical service ground (such as a cold water pipe).
.
Figure 1-97: LOCATION OF GROUNDING LUG ON 9.5” CHASSIS-B
Figure 1-98: LOCATION OF GROUNDING LUG ON 19” CHASSIS-A
Ground