Dell Z9000 Краткое руководство по эксплуатации - Страница 9
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Attach a Ground Cable
Use a single M4x0.7 screw to attach a ground cable to the Z9000 system. The
ground cable is not included. To properly ground the system, Dell Force10
recommends using a 6AWG one-hole lug, #10 hole size, 63" spacing (not
included in shipping). The one-hole lug must be a UL recognized, crimp-type
lug.
NOTE: The rack installation "ears" are not suitable for grounding.
NOTE: Coat the one-hole lug with an anti-oxidant compound prior to crimping.
Bring any unplated mating surfaces to a shiny finish and coat with an anti-oxidant
prior to mating. Plated mating surfaces must be clean and free from contamination.
CAUTION: Grounding conductors must be made of copper. Do not use
aluminum conductors.
To attach the ground cable, follow these steps:
Step
Task
Take the one M4x0.7 screw from the package.
1
Cut the cable to the desired length. The cable length must facilitate the
2
proper operation of the fault interrupt circuits. Dell Force10
recommends using the shortest cable route allowable.
Attach the one-hole lug to the chassis using the supplied screw with the
3
captive internal tooth lock washer. Torque the screw to 20 in-lbs.
Attach the other end of the ground cable to a suitable ground point. The
4
rack installation "ears" are not a suitable grounding point.
Grounding
point
40G/4x10G
QSFP+ ports
Installing the Hardware
7