Power Injector; General; Main Functions Of The Power Injector; Power Injector Versions - Alcatel-Lucent 9558HC User Manual

Functional description

Power injector

General

Main functions of the Power Injector

Power Injector versions

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The MPT-HC V2/MPT- MC is powered through an electrical Ethernet cable from the Power
Injector.
The Power Injector is an indoor device designed to deliver the DC power supply to the
MPT-HC V2/MPT-MC by using the cable that carries the Ethernet traffic.
At the input, the Power Injector receives the Ethernet traffic and the power supply on two
dedicated connectors. The Power Injector outputs, the power supply and Ethernet traffic on
one connector. This solution, called PFoE (Power Feed over Ethernet), is proprietary.
The Power Injector can power up to 2 MPR-e units.
The two power supply sources provide power supply redundancy.
• Securization of two DC power inputs from -48 VDC office power
• Low pass filtering
• Insertion of the DC voltage on two Ethernet streams to power two MPR-e units
• Surge protection on both Ethernet output ports (K44 & K45)
Two versions are available:
• Power Injector card: installed in the 7705 SAR shelf and powered through the
backplane.
Figure 47: Power Injector card
MPR-e