Extreme Networks e" series, Руководство по установке оборудования

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238 Extreme Networks Consolidated "e" and "i" Series Hardware Installation Guide
Installing a BlackDiamond 6800 Series Switch Chassis
Grounding the BlackDiamond 6800 Series Chassis
To ground your BlackDiamond 6800 series chassis in accordance with NEBS standards, gather the
following materials:
• Two 1/4-20 screws
• One copper, standard barrel 2-hole compression grounding lug, type LDC, equivalent to Panduit
part number LCD4-14B-L
• Appropriate grounding wire for your system, based on the available input current for the power
supply:
— For AC systems using a 20-Amp breaker per PSU (SSI AC), the chassis ground can be as small as
14 AWG.
— For DC systems using a 40-Amp breaker per PSU (SSI DC), the chassis ground can be as small as
10 AWG.
• Crimping tool
• Torque screwdriver
To ground the chassis:
1 Identify the grounding points on the back of the chassis.
1 Strip 0.5 inch (1.2 cm) of insulation from the stranded copper wire cable.
2 Insert the stripped wire into the cable lug.
CAUTION
Be sure that no copper is visible between the lug and the cable insulation.
3 Crimp the lug onto the cable according to the manufacturer’s specifications.
4 Insert the screws through the lug and into the grounding point on the back of the chassis (see
Figure 135)
Tighten the screws to between 41 and 57 inch-pounds (between 4.63 and 6.44 Newton-meters).
Figure 135: Attaching the ground wire
5 Connect the other end of the wire to a known reliable earth ground point at your site.
38_gnd
Grounding
points