Nortel Meridian 1 Description, Installation And Operation page 210

Page 210 of 262
553-3001-119 Standard 2.00 April 2000
Maintenance
Table 11
ITG faceplate maintenance display code messages
Hex display code
BLDR
FLR
If the internal RAM test, ALU test, address mode test, Boot ROM test, timer
test, or external RAM test fails, the card will enter a maintenance loop, as no
further processing will be possible. A failure message will be printed on the
display to indicate which test failed. For example, if the timer test fails,
"F:05" will be displayed.
If any of the other tests fail (up to and including the EEPROM test), a message
will be displayed to indicate this for three seconds. If more than one test fails,
the message displayed will indicate the first failure. If verbose mode has been
selected (by the test input pin on the backplane), the three second failure
message will not be displayed.
If the maintenance display shows a persistent T:20 indicating an ITG software
failure and if this occurs after the card was reset during a software download
procedure, then call your Nortel Network technical support for assistance in
attempting to download new software onto the card.
Message
Card has detected existing active
leader, and is running backup leader
tasks.
Card has detected the active leader,
and is running Follower tasks.