Fast SwitcHub-2se User’s Guide

Port Diagnostic Test

The Port Diagnostic Test checks all ports. If a problem is detected, an LED in the corresponding row (which indicates the malfunctioning port) and column (which indicates the failed component) will light up as shown below.

LED Indicator

(Column)

4(20% LED)

5(35% LED)

6(50% LED)

7(70% LED)

Color

Green

Green

Orange

Orange

Diagnostic Test Status

Failed Port IC Test

Failed Routing Table Test

Failed Input Queue RAM Test

Failed Output Queue RAM Test

Note: Enabling the Diagnostic function activates tests similar to the one performed upon power on. After successfully completing diagnostics, the system returns to normal operation.

Port Status Display

Port 1 statistcs are displayed on the top row

Port 2 statistcs are displayed on the bottom row Status

Link Status (Link) - Indicates a valid network connection associated with the port.

LED Activity

STEADY LIGHT

NO LIGHT

Condition

ON

OFF

Indication

Indicates a valid link has been established on this port.

No valid link has been established on this port.

Troubleshooting: If the Link LED does not light up when a device is connected to its corresponding port, check that both the switch and connected device are powered on. For devices connected to the switch using twisted-pair cable (i.e., when making 10BASE-T or 100BASE-TX connections), check that the cable length does not exceed 100 meters. Use standard, straight-through cables and not crossover or other specialized cables. When connecting to a 100BASE-FX device, be sure the fiber optic cable does not exceed 2 kilometers. Also remember to account for power loss when calculating the maximum length you can run fiber optic cabling as described in Chapter 2.

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Hardware Reference

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Accton Technology ES3002-TF manual Port Diagnostic Test