Allied Telesis AT-MCF2300 - Manual (Page 155)

AT-MCF2000 Media Converter Series Installation Guide
Section II: Installation 155
AT-MCF2000S Stacking Module
Problem 1: The Chassis ID number LEDs are off.
Solution: The AT-MCF2000S Module is not receiving power or has failed.
Try the following:
❒
Verify that the STATUS LEDs on the power supply modules in the
chassis are steady green. If the LEDs are off or signalling a fault
condition, refer to “AT-MCF2000AC and AT-MCF2300AC Power
Supply Modules” on page 150 for troubleshooting ideas.
❒
Verify that the AT-MCF2000S Module is fully seated in the
Management slot in the chassis.
❒
Remove and reinstall the AT-MCF2000S Module.
❒
Replace the module. If the replacement module works, the problem is
with the original module. If the replacement module does not work, the
problem is with the chassis.
Problem 2: A cable is connected to a Stack port but the port’s L/A LED is
off.
Solution: The Stack port is unable to establish a link with the Stack port in
the AT-MCF2000M Module or the AT-MCF2000S Module in the next
chassis. Try the following:
❒
Check that the cable is firmly connected to the Stack ports on both
chassis.
❒
Verify that the next chassis in the stack is powered on and is operating
properly.
❒
Verify that the cable does not exceed 100 meters (328 feet).
❒
Check that the cable is a standard straight-through or crossover TIA/
EIA 568-B-compliant Enhanced Category 5 (Cat 5e) shielded or
unshielded cable with 100 ohm impedance.