User's Manual

INSTALLATION
6 SpotCell® 100 Series
3.1.5 Distance between DU and CU
Although you should separate the DU and CU as much as possible, there are only 82
feet (25 meters) of cable (see following note) provided to connect the two units. Make
sure the general location of the two units is within this limit. The standard cable is quad-
shield RG-6. Use only Spotwave Wireless supplied cable.
Note:
1. For greater DU to CU separations RG-11 quad shield cable can be ordered.
This extends the DU to CU distance to 164 feet (50 meters).
2. Plenum rated RG-6 and RG-11 cable may be ordered.
Plenum cable is needed for installations in return air ceilings, floor to floor riser use
and elevator shafts.
3.1.6 Orientation of DU relative to CU
If possible face the DU and CU in opposite directions, and back to back while
maintaining maximum separation. While not a requirement, some installations will
perform better if the units are positioned in this manner. This is generally more important
for an inside mounted DU than one mounted outside on a roof or an external wall.
3.1.7 Barrier between DU and CU
The greater the physical obstruction between the DU and CU, the better the
performance. Dense obstructions such as brick, concrete or metal walls are better than
wooden or plaster walls.
3.2 Positioning the DU
The DU is the outward facing unit. It is the unit that picks up the signal from and
communicates with the service providers basestation network.
It may not be possible to install the DU indoors when installing the SpotCell solution in
remote areas. An effort should be made to install the DU outdoors and the DU should be
installed as high as possible when the installation is in a remote area.
Use your mobile phone handset to identify the inside location where the strongest signal
is received, or the outside roof or external wall location where the strongest signal is.