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5 - 2 ONline 10BASE-T Security Module Installation and Operation Guide
Troubleshooting Using the Status LEDs
A blinking Port Status indicator (LED) signals a problem with a port or a link
connected to a port. Once a port detects a problem, you can further
analyze the problem by counting the number of blinks. Table 5-1 provides
troubleshooting suggestions for each of the blinking sequences.
Note: The LEDs provide accurate information only when unused
ports are disabled.
Table 5-1. Troubleshooting Using the Port Status LEDs
LED State Indication
Possible
Problem
Troubleshooting
Suggestions
1 Blink Link Failure Cables not
connected.
Connect cables.
Cables
broken.
Check cables with cable
tester. Repair or replace
cables.
Link
Integrity
mismatch.
Make sure that both ends of
the connection have the
same Link Integrity setting.
2 Blinks Port
Partitioned
Faulty cable. Check cable with cable
tester. Repair or replace
cable.
Network
overloaded.
Reassign users to another
network to balance the load.
Off Ports
Disabled
Ports
disabled.
Enable ports.
Security
Module not
powered.
Check the Controller Module
Power LEDs.