D-Link DES-5220TF Product Manual - Page 149

Signature/Checksum test of Run Time

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Fast Ethernet Switching System User's Guide Table 15: Explanation of LED Error Status Explanation of LED Error Status Boot Program Flash Damaged Run Time Program Flash Damaged CPU Memory Failure Peripheral Controller Failure Com Port Test Failure NPB Failure PSP Memory Failure PSP Failure FEIU Failure PHY Failure ARL Failure ARL Memory Failure Exception Handler This error message indicates that the Boot Program section of Flash Memory is either corrupted or damaged. Signature/Checksum test of Boot Program has failed. This error message indicates the Run Time Program section of Flash Memory is either corrupted or damaged. Signature/Checksum test of Run Time Program has failed. This error message indicates the CPU Memory (total of 8MB DRAM) section of the System Memory has failed its read/write test. This error message indicates the failure of the onboard 82C59 Interrupt Controller. This error message indicates the SIO chip has failed its diagnostic test. This error message indicates general failure of NPB chip(s). This error message indicates the port buffer (PSP Memory) has failed its on read/write test. This error message indicates general failure of PSP chip(s). This error message indicates general failure of FEIU chip(s). This error message indicates general failure of PHY chip(s). This error message indicates general failure of ARL chip(s). This error message indicates the MAC address table (ARL Memory) has failed its own read/write test. This error message indicates CPU exception occurs due to divide by zero, invalid opcode and other general protection. The content of all CPU registers will be dumped onto the console screen. Troubleshooting 142

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Fast Ethernet Switching System User’s Guide
Troubleshooting
142
Table 15: Explanation of LED Error Status
Explanation of LED Error Status
Boot Program Flash Damaged
This error message indicates that the Boot
Program section of Flash Memory is either
corrupted or damaged.
Signature/Checksum test of Boot Program
has failed.
Run Time Program Flash
Damaged
This error message indicates the Run Time
Program section of Flash Memory is either
corrupted or damaged.
Signature/Checksum test of Run Time
Program has failed.
CPU Memory Failure
This error message indicates the CPU
Memory (total of 8MB DRAM) section of
the System Memory has failed its
read/write test.
Peripheral Controller Failure
This error message indicates the failure of
the onboard 82C59 Interrupt Controller.
Com Port Test Failure
This error message indicates the SIO chip
has failed its diagnostic test.
NPB Failure
This error message indicates general failure
of NPB chip(s).
PSP Memory Failure
This error message indicates the port buffer
(PSP Memory) has failed its on read/write
test.
PSP Failure
This error message indicates general failure
of PSP chip(s).
FEIU Failure
This error message indicates general failure
of FEIU chip(s).
PHY Failure
This error message indicates general failure
of PHY chip(s).
ARL Failure
This error message indicates general failure
of ARL chip(s).
ARL Memory Failure
This error message indicates the MAC
address table (ARL Memory) has failed its
own read/write test.
Exception Handler
This error message indicates CPU
exception occurs due to divide by zero,
invalid opcode and other general
protection. The content of all CPU registers
will be dumped onto the console screen.