NEC Univerge SV8100 System Hardware Manual page 92

UNIVERGE SV8100
2.5.5
2.5.6
System Hardware Manual
CHUYÊN CUNG CẤP TỔNG ĐÀI NEC
Install 19" Chassis Grounding
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.
Each chassis (CHS2U) in the system must be grounded separately using
the procedure listed below.
1. Ensure each Chassis is powered down and unplugged.
2. Ground each chassis 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 3-43 Chassis Grounding Lug
Install 19" Chassis Grounding on Multiple Chassis (Optional)
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.
Each chassis (CHS2U) in the system must be grounded separately using
the procedure listed below.
1. Ensure all Controlling and Expansion Chassis are powered down and
unplugged.
2. Ground each chassis 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).
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