Troubleshooting Using The Line Card Alphanumeric Display - Cisco XR 12410 Installation Manual

Troubleshooting the Processor Subsystem

Troubleshooting Using the Line Card Alphanumeric Display

Table 4-6 Troubleshooting Using Alphanumeric Display Messages
1
Display
MROM
nnnn
LMEM
TEST
LROM
RUN
BSS
INIT
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You can analyze the alphanumeric displays to isolate a problem with the line card.
The two rows of the alphanumeric display are powered separately:
The upper row receives power from the DC-to-DC converters on the line card.
•
The lower row is powered directly from the MBus on the line card through
•
the chassis backplane.
If the lower row is not operating the MBus module may be
–
malfunctioning.
If the MBus module is operating, the lower row could be on even if the
–
RP failed to powered on.
If neither the upper or lower row is on, but the power modules and the blower
•
modules are operational, the line card may not be installed properly, or the
+5 VDC output from the chassis backplane is faulty.
Make sure that the system is powered on.
–
Initialize the line card by ejecting it from the chassis backplane and then
–
reseating it.
If both the upper and lower rows are operating, check the status messages (see
•
Table 4-6).
When the DC-to-DC converters are powered-on by the MBus module, the line
card processor begins the boot process and displays various status messages.
Some messages appear briefly; while others appear for several seconds.
Meaning
MBus microcode executing; where nnnn is the microcode
version number.
Low memory on the line card is being tested.
Low memory test is complete.
Main memory is being initialized.
Chapter 4 Troubleshooting the Installation
Source
MBus controller
Line card ROM
monitor
Line card ROM
monitor
Line card ROM
monitor
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