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CITYLIGHT 10/100 ETHERNET TRANSCEIVER CARD
PROBLEM
THE DATA ACTIVITY LED DOES
NOT ILLUMINATE.
If, after going through the troubleshooting section, you fail to resolve your problem
and require more help, please contact Black Box Technical Support at 724-746-5500
with the following information:
1.
Unit type.
2.
Unit serial number.
3.
Environment lay-out. Include hubs, bridges and routers (with model
numbers), estimated cable lengths (between equipment), and type of cable
used.
4.
A description of the problem you are experiencing.
5.
List of tests performed.
28
POSSIBLE CAUSES
MAKE SURE BOTH THE CITYLIGHT 10/100 ETHERNET
TRANSCEIVERS IN THE CITYLIGHT 1U OR 3U CHASSIS
AND THE CITYLIGHT 2-CARD CHASSIS ARE SET TO THE
SAME OPERATING SPEED. THIS IS PARTICULARLY
IMPORTANT IF AUTO-NEGOTIATION IS ENABLED, AS
EACH OF THE COPPER LINKS NEGOTIATE THEIR
OPERATING SPEEDS INDEPENDENTLY AND
THEREFORE MUST BE CONNECTED TO DEVICES THAT
"TRADE UP" TO THE SAME SPEED.
NOTE: THE ACTIVITY LED WILL ONLY ILLUMINATE WHEN
DATA IS BEING TRANSMITTED OVER THE LINK.
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