Monitoring And Troubleshooting; Monitoring The 10Base-T Extender Leds - Black Box 10BASE-T Manual

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4. Monitoring and Troubleshooting

If you find that the information in this section does not address a problem you are

having with your network, call Black Box Technical Support at 724-746-5500.

Besides software issues, the most common network problems are cable faults,

which account for over 75% of all network hardware problems. Always suspect the

cabling, and always suspect the connections to the cabling first—connectors

unplugged, wires not making good contact in the connectors, faulty punchdown-

block connections, etc.

• Jabber—The amber indicator is on when the link is disabled due to a jabber

condition.

• Link Test—The green indicator is on when the 10BASE-T link is good.

• Activity—The green indicator is on when data is passing through the Extender.

• Power—The green indicator is on when the unit is plugged in and power is on

• Collision—The amber indicator is on when there is a collision on the line. Two

or more devices attempted to transmit at the same time. The Ethernet

protocol takes care of this, and the units will retransmit.

Figure 3-12. LEDs on the 10BASE-T Extender.

Jabber

Link Test

Activity

Power

Collision

XL600L

Long Distance

10Base-T Repeater

Single UTP 10Base-T Power

10BASE-T EXTENDER

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