
B–63525EN/02
4. STAND–ALONE TYPE i SERIES HARDWARE
297
LED status transition at power–up
LED statuses f: Off F: On l: Blink Z: Don’t care
No.
LED display
(L1 to L4)
Board status
1 ff
ff
Power off
2 FF
FF
Initial state immediately after power–up
3 fF
FF
MPU initialization completed
4 fF
fF
Firmware downloading completed
5 fF
ff
Control transferred to OS
6 Ff
FF
OS PHASE 1
7 ff
FF
OS PHASE 2
8 Ff
fF
OS PHASE 3
9 ff
fF
OS PHASE 4
10 lf
ff
Activation completed
If the board is normally activated, the LEDs display the pattern of No.10
and keep this state until an error is detected.
LED display when an error occurs (STATUS L1 to L4)
The STATUS LEDs alternately display the LONG and SHORT patterns.
The LONG pattern is held longer than the SHORT pattern.
LED statuses f: Off F: On
No.
STATUS LED
indication
Ethernet/data server board state
LONG SHORT
Ethernet/data server board state
1
fF
ff
Ff
ff
System reset
2
fF
ff
ff
Ff
Failure caused by this
board
Machine check
3
fF
fF
Ff
ff
DRAM parity alarm
4
fF
fF
ff
Ff
Failure caused by another
board
NMI of another module