
2. HARDWARE
B–62755EN/01
144
⋅ LED display of CAP–II function
j: OFF, J: ON, Ll: Blink, Z: Don’t care
No. LED display NC status
1 STATUS JJJJ
ALARM jjj
Startup status immediately after power is
turned on
2 STATUS ZZjJ
ALARM jjj
Waiting for each procesor in the system to set
its ID
3 STATUS ZZJj
ALARM jjj
Waiting for each processor in the system to
complete startup
4 STATUS ZZjj
ALARM jjj
The CAP II function startup has been com-
pleted and the system is now in normal opera-
tion
⋅ LED display when an error occurs
j: OFF, J: ON, Ll: Blink, Z: Don’t care
No. LED display NC status
1 STATUS ZZLL
ALARM jjj
NMI from another board (STATUS LEDs 3 and
4 are flashing simultaneously). Check other
boards’ LED display.
2 STATUS ZZjL
ALARM jjj
A CAP II sub–memory parity error occurred.
Initialize the sub–memory.
3 STATUS ZZLj
ALARM jjj
A bus error occurred (incorrect memory ac-
cess). Replace the option 3 board.
4 STATUS ZZLl
ALARM jjj
A ROM parity error occurred (STATUS LEDs 3
and 4 are flashing alternately). Replace the
CAP II ROM module.
⋅ Alarm LED display j:OFF, J:ON
LED display Description Cause and required action
ALARM jjJ An I/O link error occurred. Check the link devices and
cables.
ALARM jJj A parity error occurred in the
SRAM for CAP–II
The SRAM module for CAP–II
may be out of order
ALARM jJJ A parity error occurred in the
DRAM for PMC
The option 3 board or DRAM
module for PMC may have
failed.
ALARM Jjj A parity error occurred in the
DRAM for CAP–II
The DRAM module for CAP–II
may have failed
ALARM JjJ A parity error occurred in the
DRAM for PMC
The option 3 board or DRAM
module for PMC may have
failed.
ALARM JJj The CPU for PMC is not started Check whether the main board
has been activated normally
ALARM JJJ The operation of the PMC
module is abnormal
The PMC module may have
failed