MONITORING AND TROUBLESHOOTING
5-10
Exiting The Screen
To exit the
POWER UP DIAGNOSTIC
screen and access the Local
Management password screen, press the Enter key.
5.3.2 LEDs And The LCD Panel
Table 5-7
lists the information conveyed by the LED system and the LCD
panel during initialization phases for a MicroMMAC-T set to operate at
16 Mbps. (The 16Mb/s, or ring speed, LED does not remain lit after
initialization if the MicroMMAC-T is set to operate at 4 Mbps.)
Table 5-7
Power Up Indications From LEDs And The LCD
Initialization Phase
What LEDs Indicate
What the LCD
Indicates
Self Tests
CPU – solid yellow
ACT – off
16Mb/s – solid yellow
MGMT – solid red
Test in Progress
CPU – solid green
ACT – off
16Mb/s – solid yellow
MGMT – solid green
Hardware Init.
Loading Firmware
Image
CPU – flashing green/yellow
ACT – off
16Mb/s – solid yellow
MGMT – solid red
Boot from Flash
Decompressing
Image
Programming
LRAM
System Configuration
CPU – solid green
ACT – off
16Mb/s – solid yellow
MGMT – solid red/green
Boot Complete
Normal operating
condition
CPU – blinking green
ACT – flashing green
16Mb/s – solid yellow
MGMT – solid green
Default Message
“Flashing” indicates an irregular LED pulse. “Blinking” indicates a steady LED pulse.
Содержание MICROMMAC-22T
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