User Manual
Product information and planning
9500 MPR Rel. 3.1
3DB18809AAAA Issue 158/980
2.1.10 MSS to Outdoor Unit interconnections
2.1.10.1 MSS to ODU300 interconnection
A single 50 ohm coaxial cable connects a ODU300 Modem unit to its ODU. The max. cable length is up
to 150 m. ODU cable, connectors and grounding kits are separatly provided.
The ODU cable carries DC power supply for the ODU and five signals:
– Tx telemetry
– Reference signal to synchronize the ODU IQ Mod/Demod oscillator
– 311 MHz IQ modulated signal from the ODU300 Radio Interface (transmit IF)
– Rx telemetry
– 126 MHz IQ modulated signals from the ODU (receive IF)
Figure 17. MSS to ODU300 interconnection
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