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Real Freedom | Receiver Product Manual
18 of 51
NOTE:
Refer to the relevant product manual
for more information about how to connect each
component in the system.
Depending on your configuration, you will typically need to:
•
Connect downconverters to the receiver.
•
Connect one or more data transmitters. A data transmitter connects to a downconverter.
•
Connect a remote fiber extender system (fiber base and remote unit) to extend the range of the system.
In this instance, connect downconverters to the remote unit and connect the base unit to the receiver.
Alternatively, use an active UHF splitter to connect six Real Freedom Receivers to a single fiber base
unit.
CAUTION:
To prevent damage, it is recommended that you only use BSI supplied cables and
accessories with the receiver.
Connect downconverters to the receiver
Up to eight downconverters can be directly connected to the receiver using coaxial cables. Each
downconverter connects to one of the UHF BNC connectors on the rear panel of the receiver. The
downconverters can be powered from the receiver via the UHF connector. To use this option, you must
enable BNC power to the appropriate UHF connectors via the receiver’s
Receive
configuration menu.
CAUTION:
Before connecting a downconverter to a receiver that is powered, you
must
switch off
power to all BNC connectors on the back of the receiver to avoid damage to the downconverter’s
the OOK chip. To switch off BNC power, go to the receiver’s
Receive BNC Power
option in the
Receive
menu and disable power to all slots.
The BNC output power supply is dependent upon the receiver power supply and has the following
characteristics:
Table 5: AC and DC output voltage and BNC current limits
Receiver supply
BNC output voltage
BNC current limit
AC
24 V DC
2 A (each port) / 8 A (total)
DC (10 to 36 V DC)
Follows input supply
2 A (each port) / 4 A (total)
All downconverters should be of the same type and frequency band. For best RF performance,
downconverters should always be installed in pairs with a separation of at least 30 cm between antennas.
CAUTION:
Never connect anything other than a BSI downconverter to the UHF BNC connectors.
These ports include output voltage that may damage other equipment.
The coaxial cable between the downconverter and the receiver should be a good quality cable such as
RG59 or RG11 and have a characteristic loss of <20 dBm/100 m at 1 GHz. 75 Ohm cable should be used.
The downconverter provides gain to compensate for the cable loss.
Connect a data transmitter to a downconverter
If required, a Real Freedom Data Transmitter can be connected to any downconverter in the system via the
downconverter’s power/control connector. A one-meter cable assembly is supplied with the data transmitter
for this purpose.
NOTE:
Up to six Real Freedom Receivers can be IP-chained over a local area network to one
Real Freedom Data Transmitter.