Figure 51. Mpt Access Unit (With Pfoe) Block Diagram - Alcatel-Lucent 9500 MPR User Manual

2.8.1.8 MPT Access Unit (with PFoE)
The MPT Access Unit is the interface for two MPT: MPT-HC or MPT-MC.
Two MPT-HC or MPT-MC can be connected to one MPT Access unit.
The two MPT can be configured in unprotected or protected configuration.
The connection to the MPT-HC can be realized:
a) by using two connectors:
• one DC power Supply connector to send the power supply to the MPT-HC
• one Gigabit Ethernet connector (electrical or optical) to send the Ethernet traffic and the Ether-
net control frames to the MPT-HC
b) or by using only one electrical Ethernet cable with the enabling of the PFoE (Power Feed over Ether-
net) function (Ethernet traffic + Power Supply on the same cable).
If the optical port has to be used, an SFP plug-in must be installed.
N.B. If has been enabled port #1 (optical or electrical), the associated Power Supply port is #1.
N.B. If has been enabled port #2 (optical or electrical), the associated Power Supply port is #2.
The connection to the MPT-MC is realized by using only one electrical Ethernet cable with the enabling
of the PFoE (Power Feed over Ethernet) function (Ethernet traffic + Power Supply on the same cable).
Main Functions
– Provide the power supply interface and the Ethernet interface
– Provide the Power Feed over Ethernet function
– Lightning and surge protection
– Ethernet and power interface supervision
– EPS/HSB management function
– Clock distribution function
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Figure 51. MPT Access unit (with PFoE) block diagram

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