3Com 3CNJ1000PSL-US - NJ1000/NJ2000 Local Ac-to-dc 48V Power Supply Manuel de démarrage rapide - Page 3

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1. Quick Start Guide

computers, servers, access points, IP cameras, and Voice Over IP (VoIP) telephones to

the network through a single Ethernet connection.

All 5 LAN ports feature 10/100/1000 Mbps with auto-negotiation and auto MDI-X.

The NJ1000 also provides two pass-through ports that can be used to connect two

additional devices to separate network segments through the same unit.

Power is provided to the NJ1000 either through the uplink port via 802.3at or

802.3af PoE (Power over Ethernet) or locally via an optional, external 48V DC power

supply, 3CNJ1000PSL.

NOTE: Power Over Ethernet (PoE) is a method for providing power to equipment over

an Ethernet cable, allowing a device to receive both data and power from the same

network cable. PoE power may be provided on port 1 or port 2 of the NJ1000 if there

is sufficient power available to the system. See the section "Understand the PoE

Capabilities for Port 1 and Port 2" later in this guide for details.

NJ1000 Basics

This diagram shows the front and side views of the NJ1000. Table 1 on page 4

describes the features.