User's Manual

TX RX Systems Inc. Manual 7-9485-1.9.1 10/26/17 Page 15
styles of Channel modules available, a 14 channel
version and a 30 channel version. After DSP filter-
ing the analog signal is recreated and up converted
with an up-converter board to the original fre-
quency before being output from the channel mod-
ule at the downlink and uplink output ports.
Up converter boards are available in two different
styles including low level and high level. If the sig-
nal booster is a high-power model then a low level
up converter board is used in the channel module.
If the booster is a low power model then high level
up converter boards are used. Signal booster mod-
els that have the fiber-optic option installed in them
have enhanced down-converter boards that are
capable of dealing with the low level signals from
the optical conversion.
Uplink and Downlink Output Signals
Uplink and Downlink output signals leave the chan-
nel module at the UL OUT and DL OUT connectors
respectively. The 700 and 800 MHz uplink output
signals are combined with a directional coupler
then passed on to a power amplifier stage. The
output of the power amplifier is passed through a
triplexer then radiated from the donor antenna.
Note: When the booster is operated at the maxi-
mum uplink output power level the gain of the
donor antenna should be limited to +10 dBi.
Downlink output signals leave the channel module
and are applied to a power amplifier stage. The
output of the power amplifier is passed through a
triplexer then radiated from the DAS antenna. Note:
When the booster is operated at the maximum
downlink output power level the gain of the DAS
antenna should be limited to -4 dBi.
OPERATION
Power is applied to the channelized booster by
plugging in the AC or DC power cord (depending
on how the system was configured for input
power).
Subassembly LED’s
LED’s are located on several of the subassemblies
within the Booster cabinet. The function of each of
these indicator LED’s are listed in Table 3.
COMMUNICATING WITH THE BOOSTER
The booster provides Ethernet connectivity that
allows access to a web-based user interface for
communicating with the control board, program-
ming the individual channels, checking system sta-
tus, etc. Communications will require connecting
your laptop computer to the Enet connector on the
control board. Figure 6 shows the connector. A
standard Ethernet crossover cable is used to make
the connection between your laptop computer and
the booster cabinet. Refer to Appendix A at the
back of this manual for detailed instructions on how
to properly connect your laptop computer to the
Enet port of the booster.
System Summary Submenu
Once your laptop computer is properly connected
to the signal booster the web-based user interface
screen will appear as shown in Figure 7. This is
the System Summary page which shows the IP
and MAC address of the control module. On the
Figure 6: Enet connector on the control board.
Summed Alarm
Green = Normal
Red = Alarm
Enet
Connector
Fiber Optic Module
connects here