Nortel Meridian 1 Manual page 839

15 Check for dial tone. If there is no dial tone (the system is inoperable) and
you cannot afford downtime, switch the loops back to CPU 0 (which still
has the CPU card cage):
• Set the ENB/DIS switch on each CNI card on Core 1 to DIS.
• Set the ENB/DIS switch on each SBE card on CPU 0 to ENB.
• Initialize CPU 0 by pressing the MAN INT button.
• Troubleshoot the Core side off-line.
If you can afford downtime, troubleshoot the Core side on-line:
• Perform a visual check of the Core Module. Verify that each card is
in the correct slot. Verify that all cards are seated, all ENB/DIS
switches are set to ENB, and all red LEDs are off.
• Verify that all cables are properly and securely connected in the
front and rear of the module.
• Check the status of the CNI cards with LD 135 "STAT CNI" and
ensure all configured CNIs are software enabled.
• If any CNI cards are disabled, enable them in LD 135, perform a data
dump with LD 43, and initialize the system by pressing the MAN
INT button. Otherwise, proceed directly to step 16.
• Again, check the status of the CNI cards with LD 135 "STAT CNI"
and ensure all configured CNIs are software enabled.
• Check for dial tone again.
16 Following a successful dial tone test, perform the following basic sanity
tests:
• Make sure intra-group and inter-group calls can be placed.
• Check for error messages, line noise, chatter, or other problems.
Track sources and resolve problems as necessary.
The upgrade of CPU 1 is complete. The system is operating in split-mode
with call processing on Core 1.
Upgrade system installation Upgrading to Meridian 1 system options
Upgrades to Meridian 1 option 81 12-75