Nortel Meridian 1 Manual page 902

Upgrade system installation through x11 release 21

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Upgrades to Meridian 1 option 81

553-3001-250 Standard 14.00 August 1996

13 Type DIST. This software disables the QPC584 or QPC742 in CPU 0.

14 Set the QPC584 or QPC742 ENB/DIS faceplate switch to DIS in CPU 0.

15 Get a temporary SDI card (use a spare). Check the baud rate. The baud

rate must be set to match the associated terminal device, or output

characters may be garbled.

16 Place the temporary SDI card in any vacant non-memory slot in CPU 1.

17 Set the temporary SDI card ENB/DIS faceplate switch to ENB. Connect

a local terminal, or a modem for remote access, to the temporary SDI

card. Verify that the baud rate for the device and the SDI card match.

18 Set the NORM/MAINT switch to MAINT in CPU 1. This will cause a

sysload. If the sysload does not begin, press the RLD button on CMA 1

only. Wait for the sysload to complete to verify the sanity of CPU 1

before proceeding with the upgrade.

The CMA and SDI lights will go out and the disk drives will run. The

following messages will print out (they may differ slightly depending on

the X11 release). Check for dial tone following the DONE and INI000

SYSLOAD RLS: xx

Note 1: When the sysload is complete, midnight routines will begin.

You can log into the system, which will interrupt the midnight routines,

and continue with the upgrade.

Note 2: If the system fails to load or messages indicate data corruption,

do not proceed with the upgrade until all problems have been cleared.

The Core column(s) are installed and powered. The XT/71 system is

operating in split-mode with call processing on CPU 0. You may now transfer

functionality from CPU 0 to Core 1.

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