3Com 3C780 User Guide - Page 42

Mounting the Hub in a Rack

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2-2 Installing the Hub Mounting the Hub in a Rack Mounting the hub in a rack involves installing mounting brackets onto the hub and mounting the hub in the rack. To mount the hub in a 19-inch distribution rack, follow these instructions: 1. Lift the hub from its packing container and place it on a table or other flat surface. You should get help lifting the hub; it weighs slightly more than 15 pounds (6.8 kg). You will also need help when screwing the hub into the rack. 2. Determine where you will attach the hub to the rack. Align the mounting brackets to the holes in the vertical rails of the rack and mark the holes where you will screw the mounting brackets. 3. Attach the two supplied mounting brackets to the hub, using the screws that came with the hub. See Figure 2-1. Locate the holes on each side of the hub into which you will attach the mounting brackets. If you lose one of the screws, replace it with a 10/32 x 3/8 inch pan-head cross-recessed screw with an integral lock washer. 4. With the help of at least one other person, carefully lift the hub into position in the rack. Align the mounting brackets to the holes you designated for mounting.

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2-2
Installing the Hub
Mounting the Hub in a Rack
Mounting the hub in a rack involves installing mounting brackets onto the hub
and mounting the hub in the rack.
To mount the hub in a 19-inch distribution
rack, follow these instructions:
1.
Lift the hub from its packing container and place it on a table or other
flat surface.
You should get help lifting the hub; it weighs slightly more than 15 pounds
(6.8 kg).
You will also need help when screwing the hub into the rack.
2.
Determine where you will attach the hub to the rack.
Align the mounting brackets to the holes in the vertical rails of the rack and
mark the holes where you will screw the mounting brackets.
3.
Attach the two supplied mounting brackets to the hub, using the
screws that came with the hub.
See Figure 2-1.
Locate the holes on each side of the hub into which you will attach the
mounting brackets.
If you lose one of the screws, replace it with
a 10/32 x 3/8 inch pan-head
cross-recessed screw with an integral lock washer.
4.
With the help of at least one other person, carefully lift the hub into
position in the rack.
Align the mounting brackets to the holes you designated for mounting.