Nortel DMS 100 Series Maintenance Manual page 31

firmware option of the LOADPM command is used. This message states this
option is not supported and to use the LOADFW command.
Loadfile verification
Integrity checks are performed on the firmware for loadfile accuracy. A
loadfile record length check ensures the file is a firmware file before
submission to the XPM. If the record length is not 54, a message is output to
the user and the LOADFW command fails.
Another accuracy check is a 32-bit cyclic redundancy check (CRC) along with
a 16-bit checksum. The CM sends a validation message to the XPM to verify
the accuracy of the firmware load. The XPM extracts the CRC and checksum
that is in the firmware load. The XPM computes the CRC value and the
checksum. The XPM compares the computed and extracted values to see if the
values are the same. The XPM sends the result of the comparison to the CM.
To verify the firmware load enter the following command at the MAP display
terminal:
>QUERYPM CNTRS
Firmware upgrade
After loadfile verification, the XPM can be upgraded to the new firmware. To
upgrade the firmware use one of the following command string sets:
>BSY PM
>LOADFW PM UPGRADE
>RTS PM
or
>BSY UNIT unit_no
>LOADFW UNIT unit_no UPGRADE
>RTS UNIT unit_no
or
>BSY INACTIVE
>LOADFW INACTIVE UPGRADE
>RTS INACTIVE
Note: By using the LOADFW command with the UPGRADE option, the
firmware is upgraded to the new firmware load.
DMS-100 Family Remote Switching Center Multi-Access Maintenance Manual XPM11 and up
Maintenance overview 2-15