Install the S55 | 19
Attach ground cable
The S55 is shipped with 1 10-32 screws for attaching a ground cable to the chassis. The cable itself is not
included. Dell Force10 recommends a 6AWG one-hole lug, #10 hole size, 63" spacing (not included in
shipping) to properly ground the chassis. The one-hole lug must be a UL recognized, crimp-type lug.
NOTE: The rack installation ears are not suitable for grounding.
CAUTION: Grounding conductors must be made of copper. Do not use aluminum conductors.
Follow these steps to connect the ground cable to the chassis.
NOTE: Coat the one-hole lug with an anti-oxidant compound prior to crimping.
Bring any un-plated 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.
2 Attach the bracket “ears” to the rack or cabinet posts, using two screws for each bracket. Ensure the screws are
tightened firmly.
Step Task
1 Take the (1) 10-32 screw from the package.
2 Cut cable to desired length. Cable length must facilitate the proper operation of fault interrupt circuits. Dell
Force10 recommends using of the shortest cable route allowable.
Step Task (continued)
PSU0
PSU1
Rack/Cabinet
Post
Rack Mounting
ears
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