IBUC Operation Manual
Terrasat Communications Inc.
Rev. A
4-11
should be used to connect to J1. J1 can also carry the DC Supply for the IBUC, 10 MHz
reference and FSK signal from the Modem.
TX OUT (J2): The TX OUT connector is a Type N, SMA or F female connector used to
connect the IF at L-band from the IFU to IBUC. 50Ω (N or SMA) or 75Ω (F) cables
should be used to connect to J2. J2 can carry the DC Supply for the IBUC (Internal or
from the Modem), 10 MHz reference (Internal, External or from the Modem), and FSK
signal (pass for the Modem FSK).
EXT REF IN (J3): The EXT REF IN connector is a Type SMA or BNC female connector
used to connect the 10 MHz from an external source to the IFU. 50Ω (SMA or BNC) or
75Ω (BNC) cables should be used to connect to J3.
RX IN (J4): The RX IN connector is a Type N, SMA or F female connector used to
connect the IF at L-band from the LNB to the IFU. 50Ω (N or SMA) or 75Ω (F) cables
should be used to connect to J4. J4 can also carry the DC Supply for the LNB (Internal
or from the Modem) and the 10 MHz reference (Internal, External or from the Modem).
RX OUT (J5): The RX OUT connector is a Type N, SMA or F female connector used to
connect the IF at L-band from the IFU to the Modem. 50Ω (N or SMA) or 75Ω (F) cables
should be used to connect to J5. J5 can carry the DC Supply for the LNB and the 10
MHz reference from the modem.
Cable and Waveguide Connections
WARNING: Ensure that all power is disconnected prior to making the
following connections
When installing the cable and waveguide assemblies ensure that all connections are
weather-tight. If the optional RX reject filter has been ordered attach it to the IBUC
waveguide output. Ensure that proper gasketing is used to prevent water damage.
Waveguide connection:
Connect a section of flexible waveguide between the OMT transmit port and the IBUC
TX RF Output (or optional RX reject filter). The waveguide should be attached to the
antenna feed per the manufacturer's instructions. Ensure that proper gasketing is used
to prevent water damage. Note that the C-band IBUC is also available with an optional
N-type output connector that will require an appropriate RF cable between the IBUC
output and the OMT instead of waveguide.
Configuration without IFU:
Connect the IFL coaxial cable between the IBUC J1 (TX L-band) and the Modem.
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