Dell Force10 S4820T Installing the S4820T System - Page 28

Installing the S4820T Switch, 1U Front-rack Installation, Attaching the Ground Cable

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www.dell.com | support.dell.com Installing the S4820T Switch You can mount the switch in the 1U front-rack or 1U two-post (flush and center) configurations. The following is an example of a front-rack configuration. For the 1U two-post (flush and center) configurations, you can slide the switch into the rails in the same manner as the four-post configurations. 1U Front-rack Installation You must configure the rails that are attached to the switch. 1 Attach the switch rails (inner chassis members) to the S4820T switch. Figure 4-5, step 1 shows the detail for the front standoff with the locking tab. Figure 4-5. Attaching the Switch Rails 2 After both switch rails are installed, line them up on the previously mounted Ready-Rails and slide the switch in until it is flush with front of rack. About three inches prior to full insertion, the rail locking feature engages to keep the switch from inadvertently sliding out of the rack and falling. Attaching the Ground Cable Use a single M4x0.7 screw to attach the ground cable to the chassis. The cable itself is not included with the S4820T. To properly ground the chassis, 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. To connect the ground cable to the system, follow these steps: NOTE: The rack installation "ears" are not suitable for grounding. CAUTION: Grounding conductors must be made of copper. Do not use aluminum conductors. 28 | Installing the S4820T

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Installing the S4820T
www.dell.com | support.dell.com
Installing the S4820T Switch
You can mount the switch in the 1U front-rack or 1U two-post (flush and center) configurations. The
following is an example of a front-rack configuration. For the 1U two-post (flush and center)
configurations, you can slide the switch into the rails in the same manner as the four-post configurations.
1U Front-rack Installation
You must configure the rails that are attached to the switch.
1
Attach the switch rails (inner chassis members) to the S4820T switch.
Figure 4-5
, step 1 shows the
detail for the front standoff with the locking tab.
Figure 4-5.
Attaching the Switch Rails
2
After both switch rails are installed, line them up on the previously mounted Ready-Rails and slide
the switch in until it is flush with front of rack. About three inches prior to full insertion, the rail
locking feature engages to keep the switch from inadvertently sliding out of the rack and falling.
Attaching the Ground Cable
Use a single M4x0.7 screw to attach the ground cable to the chassis. The cable itself is not included with
the S4820T. To properly ground the chassis, 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.
To connect the ground cable to the system, follow these steps:
NOTE:
The rack installation “ears” are not suitable for grounding.
CAUTION:
Grounding conductors
must
be made of copper. Do not use aluminum conductors.