User Manual

52 Part 004071A revision 00b August 6, 2003
Amosphere NPM Installation Procedures (MMDS)
Prepare the Installation Location
This procedure applies to installing the NPM basestation on a concrete floor and
securing the racks using 4-inch concrete expansion bolts (called anchor bolts in
this document). These anchor bolts are designed for sites in level 4 seismic zones
and may not be suitable for your site. See your field engineering package (FEP)
for rack installation procedures specific to your site.
 To prepare the installation location
1 Mark with a chalk line the location where you will install the racks. Refer to your
field engineering package (FEP) for the required location. If there are overhead
requirements, use a plumb line to align the rack vertically.
Placed together, the NPM racks have a footprint of 1.2 m by 0.6 m (47 1/4 inches
by 23 5/8 inches). The racks are 2.11 m (83 inches) in height.
2 Verify that there is adequate space for the racks:
i Move both racks to the intended installation location.
ii Ensure that you have room for both racks, their cabling, and enough space for
airflow and the insertion and removal of components.
See page 28 for airflow requirements.
iii Remove the racks.
3 Place the isolation pad in the precise location designated for the first rack using
the chalk line as your guide.
The base of each rack hangs over the edge of its isolation pad by 1 mm (1/32
inch).
4 Trace the anchor hole locations on the concrete floor using the cutouts on the
isolation pad as your guide. Use the four outer locations and trace the entire shape
of the anchor holes.
5 Remove the isolation pad.
6 Punch the concrete in the outer edge of each anchor guide using the concrete
punch. This will make drilling the anchor holes easier.
7 Drill an anchor hole 101 mm (4 inches) deep on the outer edge of each anchor
hole using a hammer drill with an 3/4-inch carbide-tipped masonry bit.
8 If the drill bit hits a metal reinforcement bar, move the hole location to the inner
edge of the anchor guide and repeat steps 6 and 7.
9 Ensure that the holes are 101 mm (4 inches) deep; otherwise, the anchor bolts will
not sit properly.
installation.book Page 52 Wednesday, August 6, 2003 6:06 PM