Replacing A Fuse - Lucent Technologies PortMaster PM-2 Hardware Installation Manual

Table A-2
Field
Loading kernel
Testing High Memory
Async found in slot
ISDN found in slot
Testing memory
Found x Ports
ether0 active
Running ComOS
PortMaster Console
login:

Replacing a Fuse

If your PortMaster loses power while connected to an active power source, check the
fuse.
Follow these instructions to check and replace the fuse in the PortMaster.
Required Equipment
• 5/32-inch flathead screwdriver
• 250V, 2A fuse
Troubleshooting
Interpreting the Diagnostic Boot Messages (Continued)
Possible Message
506000
ERROR at failed
memory address
512K
11, 21, 25, or 31
64K burst - IO
N/A
N/A
Explanation
Size of kernel image in bytes.
This error indicates a boot failure. Record all
information to this point and contact Lucent
Remote Access Technical Support.
ISDN or asynchronous interface found. Test of
memory in progress.
Number of ports found, including C0, P0, or
W1.
Ethernet interface found.
If the system becomes suspended at this point
and does not print the next message, the
configuration nonvolatile RAM has been
corrupted. Refer to the troubleshooting chapter
of the Configuration Guide for PortMaster Products
for instructions on nonvolatile RAM recovery.
System is up and running.
Replacing a Fuse
A-7