Allied Telesis AT-MCF2300 - Manual (Page 153)

AT-MCF2000 Media Converter Series Installation Guide
Section II: Installation 153
AT-MCF2000M Management Module
Problem 1: The POWER LED on the module is off.
Solution: 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 suggestions.
❒
Check that the AT-MCF2000M Management Module is fully inserted
into the Management slot in the chassis.
❒
Try replacing the module.
Problem 2: A network cable is connected to the 10/100/1000Base-T
Management port, but the port’s Link/Activity LED is off.
Solution: Try the following:
❒
Verify that the network device connected to the Management port is
powered on and is operating properly.
❒
Verify that the twisted pair cable is securely connected to the port on
the management module and on the network device.
❒
Verify that you are using the correct type of cable for the port and have
not exceeded the maximum length. Refer to “10/100/1000Base-T
Management Port” on page 59 for the cable specifications.
❒
Try connecting another network device to the port with a different
cable. If the port is able to establish a link, then the problem is with the
cable or with the other network device.
Problem 3: A twisted pair cable is connected to the Stack port on the
management module, but the port’s Link/Activity LED is off.
Solution: Try the following:
❒
Verify that the next chassis in the stack is powered on and is operating
properly.
❒
Verify that the twisted pair cable is securely connected to the Stack
ports on the management module and on the AT-MCF2000S Stacking
Module in the next chassis.
❒
Verify that you are using the correct type of cable for the port and have
not exceeded the maximum length. For the cable specifications, refer
to “Cabling the Stack Ports” on page 77.