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Chapter 4
Troubleshooting Procedures
Activity T1: Testing
LEDs
Activity T2: Testing
the Hardware
Activity T3: Testing
the Network
Activity T4: At the
Monitor Prompt
Activity T5: Looking
for the Boot File
Activity T6: Loading
Code with the boot
Command
Activity T7: Running
Operational Code
4-8
Remote Annex 4000 Hardware Installation Guide
All front panel LEDs light for a few seconds, then all but the Power
LED turn off. This sequence confirms that all LEDs are operational.
At this point, the Remote Annex 4000 is in normal mode. Press the
Test switch to set the Remote Annex 4000 for the next activity.
During power-up, the Remote Annex 4000 runs self-tests that execute
CPU diagnostics, ROM and EEPROM checksums, internal serial port
and LAN loopbacks, and RAM tests. The Unit and Active LEDs flash
during the power-up tests. After completing the power-up self-tests,
only the Unit and Power LEDs remain on.
The Remote Annex 4000 sends a short packet addressed to itself
through the transceiver to test the transceiver and its cable. The Net
LED flashes during the test. After completing the test, the Net LED
remains on.
When the Power, Unit, Net, and Attn LEDs are on, the ROM Monitor
prompt displays on the console terminal. Enter the boot command at
the prompt. If you did not enter a file name with the command, you
are prompted for one.
The Load LED flashes and the Attn LED remains on while the Remote
Annex 4000 waits for a response to its load request from a load server
host.
The Load LED lights when the Remote Annex 4000 tries to load from
a load server host. The Remote Annex 4000 loads its operational code
when a host responds. The console terminal displays messages
describing the boot request and the boot process.
After the Remote Annex 4000 loads the proper image, the Load LED
turns off. The Remote Annex 4000 is ready.
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