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Issue 1 June 1998 4-5
Table 4-2. LED Power up Verification Sequences
LED Sequence Description
Rapidly blinking Red during
process and then 1 Green to
indicate process is complete.
6 - 10 seconds. FLASH code is
being verified and if valid will be
executed.
15-25 seconds FLASH code is
invalid EPROM code copied to
FLASH.
3 Reds or 3 Greens followed
by a Red.
Red - Running EPROM code,
FLASH write failed. Contact
Helpline.
Green - FLASH load passed,
running FLASH code.
3 sets of 8 Yellow blinks Access terminal configuration
menu by typing ‘MENU’ during
the first two sets of 8 yellow
blinks.