Lucent Technologies DEFINITY Enterprise Communications Server Release 6 Instructions Manual

DEFINITY Enterprise Communications Server Release 6
Maintenance for R6r Volumes 1 & 2  555-230-126  Issue 2
January 1998
Responding to Alarms and Errors 
Page 5-71 Packet Bus Fault Isolation and Repair 
5
NOTE:
The Tone/Clock circuit pack should be the next-to-last one checked. (The 
TN771D must be reseated after the Tone/Clock is reinstalled.) Refer to 
Procedure 3 for the TN768 or TN780 Tone/Clock circuit pack in a PPN with 
duplicated SPEs.
If the packet bus problem is present when the circuit pack is...

DEFINITY Enterprise Communications Server Release 6
Maintenance for R6r Volumes 1 & 2  555-230-126  Issue 2
January 1998
Responding to Alarms and Errors 
Page 5-72 Packet Bus Fault Isolation and Repair 
5
4. If the packet bus fault is not present:
a. Reinsert circuit packs one at a time and repeat the following 
substeps until all circuit packs have been reinserted.
b. Determine if the packet bus fault has returned.
c. If the packet bus fault has returned, the reinserted circuit pack is 
defective....

DEFINITY Enterprise Communications Server Release 6
Maintenance for R6r Volumes 1 & 2  555-230-126  Issue 2
January 1998
Responding to Alarms and Errors 
Page 5-73 Packet Bus Fault Isolation and Repair 
5
b. Insert the same circuit pack.
5. If the backplane pins are not bent:
a. Replace the circuit pack (reinsert the old one if a replacement is not 
available).
6. Turn the power back and allow the system to reboot. This may take up to 
12 minutes. Log in at the terminal.
7. Determine if the packet bus...

DEFINITY Enterprise Communications Server Release 6
Maintenance for R6r Volumes 1 & 2  555-230-126  Issue 2
January 1998
Responding to Alarms and Errors 
Page 5-74 Packet Bus Fault Isolation and Repair 
5
8. Repeat this procedure for the other SPE or Tone/Clock. If both have 
already been checked, go to the next step.
9. If all SPE and/or EPN control circuit packs have been checked and the 
problem is not resolved, continue with Procedure 4.
Procedure 4
Procedure 4 is used when the preceding procedures...

DEFINITY Enterprise Communications Server Release 6
Maintenance for R6r Volumes 1 & 2  555-230-126  Issue 2
January 1998
Responding to Alarms and Errors 
Page 5-75 Packet Bus Fault Isolation and Repair 
5
Figure 5-16. Carrier Rewiring Example—Rear View of Multicarrier Cabinet
Procedure 4 consists of two parts. Part 1 attempts to clear the packet bus fault by 
replacing all the bus cabling and terminators within a port-network. Part 2 
attempts to isolate the fault to a particular carrier by extending the...

DEFINITY Enterprise Communications Server Release 6
Maintenance for R6r Volumes 1 & 2  555-230-126  Issue 2
January 1998
Responding to Alarms and Errors 
Page 5-76 Packet Bus Fault Isolation and Repair 
5
Processor Port Network:
1. Power down the cabinet and terminate the packet bus so that it extends 
only from the carrier that contains the active SPE (A or B) to the carrier that 
contains the Maintenance/Test circuit pack. 
2. Power up the cabinet, allow the system to reboot, and determine if the...

Additional Maintenance Procedures
Page 6-1 Software Updates 
6
DEFINITY Enterprise Communications Server Release 6
Maintenance for R6r Volumes 1 & 2  555-230-126  Issue 2
January 1998
6
6Additional Maintenance Procedures
Software Updates
A software update is the complete replacement of the software load running on a 
switch with a new version of software. Updates are used to provide new features 
and improved services, and to repair bugs discovered in the field. Note that the 
process is called a...

DEFINITY Enterprise Communications Server Release 6
Maintenance for R6r Volumes 1 & 2  555-230-126  Issue 2
January 1998
Additional Maintenance Procedures 
Page 6-2 Software Updates 
6
Release 5r loads:
The boot image field contains “m” (mips) for G3r systems.
The system expects any software upgrade to be going from a lower, or older 
version number, to a higher, or newer version number. To install an older version 
(for example, when backing out a failed upgrade), follow normal escalation 
procedures to...

DEFINITY Enterprise Communications Server Release 6
Maintenance for R6r Volumes 1 & 2  555-230-126  Issue 2
January 1998
Additional Maintenance Procedures 
Page 6-3 Software Updates 
6
If these conditions are not met, The upgrade software call-override option must 
be used, and the update will result in a system reset level 2 (cold-2 restart). An 
additional option, preserve-calls, can be added to force the system to attempt to 
preserve calls, but this must be used with care. If the incompatibility is...

DEFINITY Enterprise Communications Server Release 6
Maintenance for R6r Volumes 1 & 2  555-230-126  Issue 2
January 1998
Additional Maintenance Procedures 
Page 6-4 Software Updates 
6
nCMS links are dropped and restored, resulting in a loss of incoming 
data during the upgrade. Data loss can be minimized by 
performing the update soon after the end of a CMS measurement 
interval.
nWideband calls are dropped.
2. Some information which is stored in system memory will be lost and must 
be manually recorded...