User Manual
1U Rack Shelf • Installation
Installation
1
Installation
21U Rack Shelf • Installation1
About the 1U Rack Shelves
The Basic 1U Rack Shelf ships with the following:
• 1 black anodized 1U rack shelf
• 16 4-40 x 3/16" screws for mounting most devices onto the shelf
• 4 6-32 x 1/8" screws for mounting INxxxx devices onto the shelf
• 4 10-32 x 3/4" black screws with captive washers for mounting the
shelf in a rack
The Universal 1U Rack Shelf (figure 1) ships with all of the basic rack
shelf’s equipment plus the following:
• 1 textured, charcoal gray, 1U rack shelf
• 16 4-40 x 3/16" screws for mounting most devices onto the shelf
• 4 6-32 x 1/8" screws for mounting INxxxx and TPR101 devices onto
the shelf
• 4 10-32 x 3/4" black screws with captive washers for mounting the
shelf in a rack
• 1 charcoal gray half rack width false front panel
• 1 charcoal gray quarter rack width false front panel (not shown)
• 1 charcoal gray eighth rack width false front panel (not shown)
1.75" (4.45 cm)
9" (22.86 cm)
19" (48.26 cm)
17.375" (44.13 cm)
Figure 1 — 1U rack shelf
Before installing the 1U Rack Shelf, consider the available space in the
rack, and the device(s) that will be mounted on this shelf.
A 1U shelf rack can accommodate the following (figure 2):
• 2 half rack width devices
• 3 one-third rack width devices
• 4 standard quarter rack width devices
• 7 VersaTools
®
quarter rack width devices (leave one rear mounting
location empty for cable routing)
• 15 VersaTools eighth rack width devices (leave one rear mounting
location empty for cable routing)
• A mix of devices in different widths and depths
D
IS
T
R
IB
U
T
IO
N
A
M
P
L
IF
IE
R
MDA SERIES
DISTRIBUTION
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Figure 2 — Half rack, quarter rack VersaTools, and
eighth rack VersaTools devices on a 1U rack shelf
Installing the Device(s)
All the rack-mountable devices have two threaded holes in their base
plate for mounting onto the shelf.
It is easier to first install the device(s) onto the 1U shelf and then
install the shelf in the rack.
The standard half rack width products and INxxxx and TPR101
half rack width products mount in one of two locations in the
front of the rack.
The one-third rack width products mount in one of three locations
in the front of the rack.