User Manual
Product information and planning
9500 MPR Rel. 3.1
3DB18809AAAA Issue 1 147/980
– In 1+1, switch of the recovered clock between the local and the one coming from second MPT-HC
depending on the traditional RPS position
– Deframing of the Rx modem frame
– Re-assembly of fragmented Ethernet frame
– Decompression of TDMoEth frames header
– Extraction of MPT-HC to MPT-HC messages needed for radio link (ATPC, ACM, ...)
– Management of service channels frames
– Switch of the management frames from internal processor to user port.
– Management of the 1+1 EPS protection layer 2 messages
– Send the recovered clock to the MSS
– In 1+1 EPS, transmit or not the Ethernet frames to the MSS depending on the EPS position
2.8.5.1.2 RF Section
There are two architectures, the difference between these two architectures are only on Rx side:
– For the first one (used in MPT-HC band 7/8 GHz) there are only two frequency conversions between
RF input frequency and base band frequency
– For the second one (used for all other MPT-HC bands) there are three frequency conversions
The block diagrams of these two architectures are shown hereafter.
Figure 66. 7/8 GHz MPT-HC architecture
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