Information Technology Reference
In-Depth Information
Outlet boxes for postwiring use are also available. These boxes are sometimes
called
old work
or
SheetRock™
boxes. Because they mount in hollow walls that have
already been constructed, they must be inserted from the front of the wall. An opening
is cut in the wall big enough to insert the box body. Additional room may be required
for the mounting device that secures the box to the wallboard. These mounting devices
are usually screw-tightened to clamp the mounting flange of the box to the wall.
Another type of flush mounting device is the mounting ring. Mounting rings
are available in several varieties, as shown in Figs. 6.2 and 6.3. Standard mounting
rings provide a target location for telecommunications outlets during construction.
These rings have mounting plates that allow them to be attached to the wall's ver-
tical supports. The mounting ring normally has a 2-in by 4-in opening that is formed
into a flange.
FIGURE 6.2
Mounting rings are available in several varieties. This is an “old work” or “remodel” ring.
(Courtesy of ERICO, Inc.)
