Installation
Block Up Converter Systems 6700/6900 series User Guide 29
TRF and LNB
The TRF and LNB are normally mounted directly on the
antenna feed structure.
The LNB obtains the required +15 to +24 V DC power and, in
certain cases, the 10 MHz reference signal from a compatible
L-Band modem. The modem is connected to the receive
output connector of the LNB.
BUC
BUCs are supplied with either N-type or waveguide outputs.
A mounting kit is supplied with the BUC. Some mounting kits
allow the BUC to be mounted on the boom or pedestal of the
antenna. Other kits may also be available for different
mounting options. Contact your antenna manufacturer if you
have specific installation requirements.
Cables
Use an IF coaxial cable to connect the modem to the BUC (see
page 32, Cable recommendations). It is recommended that you
use the same type of cable to connect the modem to the LNB.
If you are using the RS232/422 serial interface, use an M/C
cable to connect the BUC to a PC (see page 40, Monitor and
control interface of the BUC).
DC power connection
There are two types of BUCs that are DC-powered: those
powered via the IF INPUT connector, and those powered via
an external connector.
BUCs that are powered via the IF INPUT connector receive
DC power from a source via the IF cable. See BUC
specifications or compare your BUC model number against
Table 27 on page 111 for the exact voltage range of your BUC.
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