User's Guide

Chapter 2: First Time Installation
ZoneDAS User Guide Page | 20
2.3.8 Configure RU Parameters
Once an RU has been mounted, it may be necessary to adjust its output parameters. In
particular, each RU must be configured for a specific output signal strength and a specific
antenna configuration. The default RF output signal strength for RUs is +17 dBm per RF band
module, while the default antenna configuration is “Omni”. If these are not the desired
values for all RUs, it is possible to adjust them from the RU Settings screen.
To reach the RU Settings screen, click Setting from the Navigation Panel and select RU
Settings. The following screen layout will appear:
Figure 15 ZoneDAS RU Settings screen
Like the BU Configuration screen, the gray bar at the top of the table shows RF-A to RF-D,
from left to right. These correspond to RF modules A, B, C and D. Four identical columns still
lie below each of these labels. The difference is, the gray bar at the table’s left now lists all
the RUs the system can connect to. As each RU has up to 4 RF modules, this table allows
one to configure the output of each RF module for each RU.
Output Power is fairly straight forward. Simply enter a value that represents the RU
antenna’s maximum (not constant) RF output. A 17 dBm output would typically service an
area that’s equivalent to a 25m x 25m open-space zone, while 23 dBm would service an
area-equivalent of 50m x 50m. Antenna configuration is also simple, with only 2 to choose
from. The first, “Omni”, instructs the antenna to broadcast evenly in all directions. It is
perfect for square or round areas, where placing an RU on the ceiling at the center of the
room creates the best coverage. The second, “Directional”, instructs the antenna to
concentrate its broadcasting in a single direction—through the top of the RU. This
configuration is perfect when coverage is desired for a hallway. Simply mount the RU on
the wall at one end of the hall, and the entire hallway will have signal.
Of course, RU placement would have been determined by now, so simply change the
configuration for all RUs to pre-planned values. Note that you can only change values for
mounted RUs. Once configuration is done, please press Apply.
2.3.9 Turn Service On
At this point, both the BU and RUs should be fully configured. This means the system is ready
for activation through turning on Service.
Turning on “Service” allows RF signals into the system for distribution. ON represents the
normal working state for a ZoneDAS system. ZoneDAS is effectively “under maintenance”
when Service is off.