030‐300302 Rev. A
R
Section AWC‐TMV‐850‐301
1312I1RA
3
4. If alarms are present, verify all connections. If all connec
tions are correct, replace TMA.
3.3
Determining the Final Installation Location
The exact location of the TMA will vary by installation; it is typic
ally pole mounted outdoors though it may be wall‐mounted. The
TMA can be located close to the antenna on the tower, or closer
to the BTS/eNodeB. The TMA can be mounted with mounting
screws/bolts inserted through the small round mounting holes
(see Figure 6 for dimensions) or with pole mounting straps
routed through the larger, square, cut‐out holes in the mounting
brackets.
Because the current to drive the TMA must pass from the CIM
to the TMA there cannot be a discontinuity in the DC path
between the CIM and associated TMA (such as a shorted
quarter wave lightning protection device).
3.4
Mounting the TMA
Mount the TMA per company practice or the steps below and
using Figure 4 as a guideline. The TMA may be pole (tower) or
wall mounted, using bolts/screws or straps. The mounting and
hardware surface must be capable of supporting the weight of
the TMA and be weather‐resistant and suitable for extended
outdoor use. The correct orientation of the TMA is with the con
nectors pointing down. Use Figure 5 as a reference as needed.
‐ VERIFYING FUNCTIONALITY NOTE ‐
Follow the steps in Paragraph 3.2 to verify proper functionality prior to
mounting the unit.
3.4.1
Mounting the TMA to a Wall
The TMA may be mounted to a wall, for example, such as when
mounting on a rooftop. In this case the screw holes on the
mounting plate can be used. Screws are not supplied. The
mounting of the TMA to a wall will vary by situation so only the
installer can decide the details of the mounting. However, par
ticular attention to grounding will be required as the wall itself
will not provide an adequate ground connection.
3.4.2
Mounting the TMA to a Pole
Follow the steps below to mount the TMA to a pole, as shown
in Figure 4.
1.
Gather tools and equipment.
The following tools may be
needed to mount the kit.
j
Standard installation tools and hardware including
wrenches, screwdrivers, power drill and bits, and cable
ties, per company practice and mounting surface type
j
Grounding wire, and other grounding tools and materials,
per company practice
j
7/16 jumper cables
j
Connection weatherizing materials such as weatherized
tape or sleeving and hose clamps
j
Cable management tools, per company practice
j
Wrench (for ground bolt and RF connectors)
Figure 4.
Mounting the TMA
Wall Mounting
Insert mounting
hardware through
small round holes
Pole
Strap
Route strap
square holes
Mounting
through
Select strap
per company
practice
in top and
bottom
bracket
Figure 5.
CIM Feeder and Power Cable Connections
ANT
Connect feeder cable
Connect jumper cable
To
To BTS/eNodeB
female 7/16 DIN
connector labelled ‘ANT’
female 7/16 DIN
connector labelled ‘BTS’
Female, 7/16 DIN
connector
to the TMA’s
to the TMA’s
2.
Unpack and inspect the unit.
Unpack the unit from the
shipping box and inspect it for any damage (report
damages to the shipping company and to Westell).
3.
Remove the covers.
Remove the plastic covers that protect
the connectors at the bottom of the TMA
‐ CHECK 7/16 DIN TMA CONNECTORS NOTE ‐
Verify that the TMA is free of any visual defects prior to installation.
In particular, check that the 7/16 DIN TMA connectors are free
from damage.
4.
Pre‐attach mounting hardware on the TMA.
Prior to as
cending the tower, the hose clamps or mounting straps (not
