H3C Technologies H3C S5820X Series Switches - Manual (Page 84)

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CAUTION:
The S5820X-26S switch requires two same direction air flow fan trays to function correctly.
• Do not operate the system with only one fan tray for more than 24 hours
• Do not operate the system without any fan tray for more than 2 minutes.
• Do not operate the system outside of the temperature range 0°C to 45°C (32°F to 113°F) degrees.
Failure to comply with these operating requirements may void the warranty.
Configuration terminal problems
If the configuration environment setup is correct, the configuration terminal displays boot information
when the switch is powered on. If the setup is incorrect, the configuration terminal displays nothing or
garbled text.
No terminal display
If the configuration terminal displays nothing when the switch is powered on, check the following items:
• The power supply is normal.
• The console cable is correctly connected.
• The console cable has no problem and the terminal settings are correct.
Garbled terminal display
If terminal display is garbled, check that the following settings are configured for the terminal, for
example, HyperTerminal:
• Baud rate—9,600
• Data bits—8
• Parity—none
• Stop bits—1
• Flow control—none
• Emulation—VT100