Nortel 1000E Maintenance Manual page 162

162 Media Card maintenance
•
If any of these tests fail, the card enters a maintenance loop, and no further
processing is possible. A failure message is printed on the display to
indicate which test failed. For more information and a list of the maintenance
display codes, see IP Line Fundamentals (NN43100-500).
If the maintenance display shows a persistent T:20, indicating a software
failure, and this occurs after the card is reset during a software download
procedure, call the Nortel technical support for assistance in downloading
new software onto the card.
If a test fails on the Media Card, F:XX appears on the Hex display for three
seconds after the T:13 (Testing SEEPROM) message. For example, if the
8051 coprocessor test failed, F:05 is displayed on the Media Card faceplate.
If more than one test fails, the message indicates the first failure.
Table 36 "Media Card faceplate maintenance display codes" (page 162)
provides a list of related normal and fault display codes for the Media Card.
Table 36
Media Card faceplate maintenance display codes
Copyright © 2007, Nortel Networks
.
external RAM test
Normal Corresponding
code Fault code
T:00 F:00
T:01 F:01
T:02 F:02
T:03 F:03
T:04 F:04
T:05 F:05
T:06 F:06
T:07 F:07
T:08 F:08
T:09 F:09
T:10 F:10
T:11 F:11
T:12 F:12
T:13 F:13
T:14 F:14
T:15 F:15
Nortel Communication Server 1000
Communication Server 1000E Maintenance
NN43041-700 01.02 Standard
Release 5.0 20 June 2007
Message
Initialization
Testing Internal RAM
Testing ALU
Testing address modes
Testing watchdog
Testing 8051 coprocessor
Testing timers
Testing external RAM
Testing security device
Programming timeswitch FPGA
Programming ISPDI FPGA
Testing host dual port RAM
Testing DS-30 dual port RAM
Testing SEEPROM
Booting Host processor, waiting for
response with self-test information
Not used at present