In this section:
Slots 1 through 4 of the SBC 7000 chassis contains DSP-LC (Large Capacity) cards.
The DSP-LC product code is SBC-7000-DSP-LC.
The following items are needed to replace a DSP-LC card:
In case of a DSP failure, the SBC supports reloading the faulted DSP in one second without a system switchover while restoring channels, if any, and collecting coredumps. If the DSP reload fails or if the number of DSP failures exceeds two within 24 hours, the SBC performs a system switchover.
To replace a DSP-LC card:
Disable the DSP-LC card via EMA GUI (All > System > Daughter Board Admin > State (Disabled)).
Removing a disabled DSP card does not bring down the rest of the node (hot swappable).
Removing an enabled DSP card is a hot pluggable action (the node restarts, which means that it stops providing service; this will cause a switchover to a HA peer, if present).
Unscrew the thumb screws using #2 Phillips-head screwdriver, open the release levers on each side and pull the DSP-LC card.
The DSP-LC module includes a Field-Programmable Gate Array (FPGA) that may occasionally require reprogramming. Generally, reprogramming is fully autonomous and occurs during the application start process. If the FPGA update is required, expect an additional 1-2 minutes added per DSP-LC card present to the length of a normal application start process. For some older versions of the FPGA image, reprogramming requires user intervention.
Log messages pertaining to FPGA reprogramming are stored in the following files:
/var/log/sonus/sbx/openclovis
directory. This file contains all logs related to system startup as well as a log of other scripts that call this FPGA reprogramming utility./var/log/messages
file.If the following error is logged, refer to the Method of Procedure to Upgrade SBC 7000 DSP-LC FPGA to update the DSP-LC card.:
Dec 26 18:10:36 /opt/sonus/sbx/scripts/fpgaUtil.pl[26697]: Dec 26 18:10:36 /opt/sonus/sbx/scripts/fpgaUtil.pl[26697]: ERROR - DSP-LC FPGA Version does NOT support Host programming Dec 26 18:10:36 /opt/sonus/sbx/scripts/fpgaUtil.pl[26697]: Current Revision: 0x00000014 Dec 26 18:10:36 /opt/sonus/sbx/scripts/fpgaUtil.pl[26697]: Minimum Revision: 0x00000015 Dec 26 18:10:36 /opt/sonus/sbx/scripts/fpgaUtil.pl[26697]: Dec 26 18:10:36 /opt/sonus/sbx/scripts/fpgaUtil.pl[26697]:
All SBC 7000 CRUs are shipped in electrostatic discharge (ESD) bags and must be handled by using appropriate ESD precautions. The storage environment for these CRUs are:
The ESD Susceptibility symbol warns of the presence of Ribbon devices susceptible to electrostatic discharge. Do not handle equipment without wearing a properly grounded ESD wrist strap.