Nortel Networks Option 11C Mini ユーザーズマニュアル
Page 140 of 332
Chapter 11 – Installing the system ground
553-3021-209
Standard 3.00
April 2000
Consider the Main Chassis and the Chassis Expander as the same ground.
Jumper the ground wire from the Chassis Expander to the Main Chassis.
Then, connect the ground wire from the Main Chassis to the grounding block.
Jumper the ground wire from the Chassis Expander to the Main Chassis.
Then, connect the ground wire from the Main Chassis to the grounding block.
See Table 26 for region-specific grounding requirements.
Chassis powered by different service panels
For each Main Chassis, connect a #6 AWG (#40 Metric Wire Gauge) ground
wire from the Main Chassis to an NTBK80 grounding block. If any chassis
cannot be powered from the same service panel, ground it
wire from the Main Chassis to an NTBK80 grounding block. If any chassis
cannot be powered from the same service panel, ground it
separately from the
other chassis back to the service panel that supplies it. All Main Chassis and
Chassis Expander pairs must be powered from the same service panel.
Chassis Expander pairs must be powered from the same service panel.
See Table 26 for region-specific grounding requirements.
Table 26
Region-specific grounding wire requirements
Region-specific grounding wire requirements
Region
Grounding wire requirements
Germany
#8 AWG (10 mm
2
) green/yellow wire
Other regions in Europe
not smaller than #6 AWG (16 mm
2
) at any
point
UK
two green/yellow wires no thinner than
two 10 mm
two 10 mm
2