Alcatel-Lucent 9500 MPR User Manual page 147

2.8.5.1.1 Common Belt section
The Common Belt section is frequency independent. It is the digital section of the MPT-HC.
The main functions are the following:
1) Interfaces the MSS for traffic transport and MSS communication messages in both directions,
through one Gigabit Ethernet optical or electrical cable.
2) Micro-Processor for
– Indoor - MPT-HC dialogue
– Inter-MPT-HC dialog in 1+1 configurations
– HW configuration and monitoring of all MPT-HC parts
– Dynamic regulation process such as ATPC
3) Transport of the system reference clock (synchronisation)
4) Switches the traffic and management to the correct port (processor port, radio port)
5) Performs traffic adaptation if needed
6) Performs Quality of Service and policing on flow to be sent over the radio link.
7) Modulation and demodulation of the resulting modem frame
8) In 1+1 configuration manages the switching, forwarding received modem frame to the second
MPT-HC and sending built modem frame to the second MPT-HC.
Power supply interface
It is provided by a "N" 50 ohms connector, with the positive to ground.
The power supply is coming from the MSS in the range of -40,5 V to -58 V. MPT-HC input voltage range
is from -28 V to -58 V.
Lightning protection
The lightning protection is internal to the MPT-HC. No external protection must be used.
This protection applies to:
– the Ethernet electrical cables
– the power supply coax cable
INCA module
The INCA module hosts the physical Ethernet interfaces:
– One optical SFP device for traffic interface.
– One electrical device for traffic interface.
– One optical SFP device for 1+1 protection interface with the associated MPT-HC.
In order to reach 500m the MPT-HC uses an SFP multimode 805 nm with a 50/125 fibre.
User Manual
Product information and planning 3DB18809AAAA Issue 1
9500 MPR Rel. 3.1
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