Nortel Meridian 1 Manual page 598

The option 51 X11 release 21 system is now operational. Install all covers to
complete the upgrade.
Converting a database from release 18 to release 21
1 Remove the front covers from the CPU/Network module in the
option 51.
2 Log into the system.
3 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.
4 Set the ENB/DIS switch on the MSI or EMSI card to DIS and remove the
card. Replace the QMM42 cartridge for release 18 software with the
QMM42 cartridge for release 19 software.
5 For MSI cards, set position 4 on switch SW3 to OFF. For EMSI cards,
set position 4 on switch SW2 to OFF. Reinstall and enable the card.
6 Remove the disks containing release 18 software from the drives and
insert ED floppy disks with release 19 software into the NTND16 MDU
drives. Insert disk A in DRV A and disk B in DRV B.
7 Perform a data dump. At the prompt, enter
EDD
When "DATABASE BACKUP COMPLETE" or "DATADUMP
COMPLETE" appears on the terminal, proceed to the next step.
If the data dump is not successful, do not continue; contact your
technical support organization. A data dump problem must be
corrected before proceeding.
Upgrade system installation Upgrading to Meridian 1 system options
Meridian 1 option 51 upgrades
to load the program
to begin the data dump
CAUTION
9-19