Nortel Meridian 1 Manual page 304

Converting a database from release 15 or 16 to release 21
1 Remove the front covers from the CPU/Network cabinet in the
NT system.
2 Log into the system.
3 Load the Common Equipment Diagnostic Program (LD 35) and check
the status of the CPUs:
LD 35
STAT CPU
Verify that CPU 1 is enabled and CPU 0 is idle. If CPU 0 is enabled, test
and switch the CPUs:
TCPU
SCPU
Check the status of the CPUs again:
STAT CPU
Verify that CPU 1 is enabled and CPU 0 is idle, the enter
****
4 In CPU 1, set the MAINT/NORM switch on the QPC580 CPU Interface
card to MAINT.
5 Load the Equipment Data Dump Program (LD 43). At the prompt, enter
LD 43
Always enter LD 43 from the source (current) media. Do not exit LD 43.
When "EDD000" appears on the terminal, proceed to the next step.
Note: Your system will have either a QPC584 MSI card or an NT9D34
EMSI card.
6 Set the ENB/DIS switch on the MSI or EMSI cards in CPU 0 and CPU 1
to DIS.
7 Disconnect cables to the faceplates of both MSI or EMSI cards and
remove the cards.
Upgrade system installation Upgrading to Meridian 1 system options
to load the program
to get the CPU status
to test the CPUs
to swap the CPUs
to get the CPU status
to exit the program
to load the program
SL-1 NT system upgrades 6-45