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Overview
C-2 About PoE (Power over Ethernet)
Proprietary PD Detection
The7H4385‐49supportsasubsetofthecurrentlydeployedproprietaryPoEmethods.
ThisincludessupportforCiscoPDs,includingaproprietarycapacitorbaseddetection
scheme.
Power Interface
The7H4385‐49caninterfacewithanexternal48VpowersupplythatresidesinaMatrix
N5chassisorfromaseparateMatrixN‐POEPowerSystem.
Matrix N5 Backplane 48 Vdc Interface
The7H4385‐49hasaconnectorthatinterfaceswiththebackplaneoftheN5chassisfor
48 Vdcpower.Thispowerconnectiononthe7H4385‐49isfused,hasEMIsuppression
componentsforthisinterface,andcansupportasustainedoutputcurrentof20 A.
Front Panel 48 Vdc Interface
The48VdcOptionalPowerInputconnectoronthe7H4385‐49frontpanelprovidesa
powerinterfaceconnectionforanEnterasysMatrixN‐POEPowerSystem,which
providesthe48Vdc,20Amperesofpowerandreturnaswellasthepowersupplystatus
signals.Thestatussignalsindicatethepresence
andoperatingstateofeachMatrixN‐POE
PowerSystempowersupplies.This48VdcOptionalPowerInputinterfaceisnotfusedas
theN‐PoEPowerSystemhasacircuitbreakerforeachPoEswitchmodulepowerfeed.
Warning: The DFE module is shipped with a cover over its 48 Vdc Optional Power Input
connector. Do not remove this cover when the DFE module is installed in an N5 chassis.
This cover is removed only when you connect a 48 Vdc power cable from the Enterasys
N-POE Power System.
Advertencia: El modulo DFE es embarcado con una cubierta sobre su conector de poder
opcional de 48 Vdc. No remover esta cubierta cuando el modulo DFE es instalado en un
chassis N5. Esta cubierta debe removerse unicamente cuando se conecta el cable de
poder de 48 Vdc hacia el Sistema de Enterasys de Energia por Cable (Enterasys N-POE
Power System).
Warnhinweis: Im Auslieferungszustand der DFE Module stülpt eine Schutzkappe über
dem 48V Gleichspannungs-Anschluss, die nur dann abgezogen werden darf, wenn ein
Enterasys N-POE Power System angeschlossen wird. Keinesfalls darf diese Schutzkappe
abgezogen werden, wenn das DFE Modul in einem N5 Chassis installiert wird.