Packet and serial bus maintenance
S8100 packet bus fault isolation and repair
262
Maintenance Procedures
December 2003
Figure 78: Packet bus fault isolation flowchart (2 of 2
)
Flowchart description and supplement
An uppercase letter in bold (for example,
A, B, C,
etc.) indicates that there is supplemental information
with details about the relevant process that could not fit into the appropriate box or diamond.
NOTE:
Due to space restrictions, individual error codes and alarms are not detailed on the
flowchart. The maintenance object descriptions in Maintenance Alarms Reference (555-
245-102), discuss which errors and alarms could cause or be indicative of Packet Bus
problems. In general, unless an error, alarm, or test refers explicitly to the TDM Bus, the
error, alarm, or test should be considered a possible cause of Packet Bus problems.
YES
YES
YES
YES
YES
YES
YES
NO
NO
NO
NO
From
page
1
NO
NO
NO
G
Is a
TN771 present
in this port
network?
J
Does the
TN771 indicate
packet bus
faults?
K
Is the
problem isolated
to a single
board?
H
Are there
alarms or errors
against
M/T-PKT?
Are the
packet bus
problems
resolved?
Are the
packet bus
problems
resolved?
Are the
packet bus
problems
resolved?
M
Follow the packet
bus fault isolation and
correction procedures
L
Follow the board,
port and/or endpoint
repair procedures
Follow the repair
procedure for
M/T-PKT
I
Place the TN771
in standalone mode
Escalate
the
problem
A
END
END
END
fcdfpbp2 RPY 101397
Summary of Contents for CMC1
Page 1: ...Maintenance Procedures 555 245 103 Issue 1 1 December 2003 ...
Page 14: ...Contents 14 Maintenance Procedures December 2003 ...
Page 416: ...Additional maintenance procedures IP Telephones 416 Maintenance Procedures December 2003 ...
Page 426: ...Index X 426 Maintenance Procedures December 2003 ...
