User guide

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2-5
Compaq Netelligent 1009B 10Base-T Hub User Guide
Writer:
Chris Seiter
Project:
Hardware Description
Comments:
File Name:
1009B_2.DOC
Last Saved On:
6/26/97 2:18 PM
Link/Traffic
LED Activity Condition Indication
STEADY GREEN LIGHT ON Indicates a valid link has been established on this port.
BLINKING GREEN
LIGHT
ON Indicates the port is receiving packets; blinking is
proportional to the traffic passing through the port.
NO LIGHT OFF No valid link has been established on this port.
Link
The corresponding Link/Traffic LED lights when a device (for example,
computer, hub or bridge) establishes a valid connection using the RJ-45 port.
However, for the BNC port, no link connection is tested. The Link/Traffic LED
for this port only monitors the traffic condition.
Troubleshooting:
If the Link/Traffic LED does not light when a device is connected
to its corresponding port, check that both the hub and connected device are
powered on. For devices connected to the hub using a twisted-pair cable, check
that the cable length does not exceed 100 meters. You should have standard,
straight-through cables and not crossover or other specialized cables.
Traffic
Traffic refers to the movement of packets being received by the port. A port’s
corresponding Link/Traffic LED flashes in proportion to the rate of traffic
passing through the port. Through this LED, the network manager can easily
view the activity on a port.