3Com 3C10220 manual Front Panel Connections LEDs, Receive on pins 3

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Front Panel Connections and LEDs

11

Front Panel

Connections and

LEDs

Figure 1 and Figure 2 show the front-panel details of the 24-port and 12-port EPS units. The LEDs are described in later in this section.

Figure 1 24-Port Ethernet Power Source — Front View

Note: Bottom row connectors are input ports (data only). Top row connectors are output ports (data and power).

Figure 2 12-Port Ethernet Power Source — Front View

Note: Bottom row connectors are input ports (data only).

Top row connectors are output ports (data and power).

Both the 12-port (P/N 3C10220) and the 24-port (P/N 3C10222) versions of the EPS have two rows of 10BASE-T/100BASE-TX ports. The input ports, on the bottom row, are numbered from left to right (as you face the front of the unit). Each output port is located immediately above the input port to which it corresponds. You must use non crossover cables with both input and output ports.

10/100BASE-TXThe EPS input ports (bottom row) accept Ethernet data only (Tx/Rx) over Data Input Ports the standard two wire pairs on an RJ-45 connector (Transmit on pins 1

and 2; Receive on pins 3 and 6).

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Contents 3Com Ethernet Power Source Guide 3Com Corporation 5400 Bayfront Plaza Santa Clara, California Contents Troubleshooting List conventions that are used throughout this guide About this GuideConventions Compliance DocumentationComments Year3Com Support About this Guide 3COM Ethernet Power Source Overview Fed through the unused pairs 7/8 and 4/5 Power source is designed for use with a standardOverview Front Panel Connections LEDs 2 Receive on pins 3LED Behavior 10/100BASE-TX Data and Power Output PortsTest LED Console Port Rear PanelSample topologies are shown in and Figure Guidelines for Network Configuration3COM Ethernet Power Source Overview Cabling Patch Panel Laptop with Wireless PCM Card 3COM Ethernet Power Source Overview Installing Ethernet Power Source END Devices Suitable Site Choosing aRepeat and for the other side of the EPS Rack-mountingStandard 19-inch equipment racks Unit, as shown in FigureInstalling the Ethernet Power Source and END Devices RJ-45 Output Plug per Port DTE NIC Side RJ-45 Input Plug per Port Switch SideList the RJ45 input and output plugs per port Data Power SplitterCable 3Com Wireless Ethernet Power SourceAccess Point Wiring Closet Patch Panel PremisesInstalling the Ethernet Power Source and END Devices Solving EPS TroubleshootingProblems Solving EPS Problems Solving EPS Problems Telephone To resolve the problemSolving NBX Business Telephone Problems Solving NBXSolving NBX Telephone Problems Solving Wireless Access Point Problems Wiring, hubs, and switches Troubleshooting Safety Information Connected to an earthed grounded outlet Important SafetyConnect it to an AC outlet power supply InformationSécurité Importante ’information deSécurité Importante France et Pérou uniquementHeitsinformationen Wichtige SicherAppendix a Safety Information PIN Assignments Technical Specifications for the Ethernet Power SourcePin Assignments Pin Number Signal Function3Com Corporation Limited Warranty Warranties Exclusive