2.3 Indicators
2.3 Indicators
The DPU has indicators on the front panel, the ACU PCB, the MVIB Front-end
VME interface PCB (T6000), the PVME PVB, the PE array PCBs, the router
PCBs, and on the power tray. All of these indicators provide information about
the status of the system.
2.3.1 Front Panel Indicators
The DPU has 10 active indicators on the front panel, providing information about
the state of the DPU (Figure 2–1 or Figure 2–2). Most of these are two-color
indicators; they are either green, yellow, or off.
The front panel indicators are arranged in two banks of 10 indicators each.
Table 2–1 lists the front panel indicators, starting from the left.
Table 2–1 Front Panel Indicators
Label
Green
Yellow
Off
Power
Power, fan, and
temperature are OK
System powering up
1
No AC power
present
19
System run light:
instructions are executing
Macrocode is not running
Not used
18
ACU is waiting for
TOBEQ
Not used
ACU is not waiting
for TOBEQ
17
ACU is waiting for
FRBEQ
Page fault (overrides
green)
ACU is not waiting
for FRBEQ
16
PMem is using PE
PMem is not using PE
15
Router is active
Not used
No router activity
14
I/O is taking place
between PEs and I/O
devices
Machine is temporarily
stalled due to register
interlock
One or more PEs are
selected.
13
VME
AS
is active
Not used
VME
AS
is not
active
12
VME
DT ACK
is active
Not used
VME
DT ACK
is not
active
11
Not used
VME parity error
VME parity OK
10
Not used
Normally always on
Not used
9-0
2 3
Not used
Not used
Not used
1
During normal system powerup, the power status indicator is yellow for a few seconds, then changes
to green. If it remains yellow, the power sequencer did not complete powerup, and the power tray
indicators indicate the reason for failure. When the power sequencer stops trying to power up the
DPU, this indicator turns red.
2
Indicators 0-4 cycle when the software daemon is running.
3
Indicator 5 may become yellow if the background diagnostic tests fail.
2.3.2 Service Indicators
Service indicators include those on the various PCBs and on the power tray.
Figure 2–4 shows the location of the power tray service indicators. Figure 2–5
shows the location of the PCB service indicators.
DPU Controls and Indicators 2–7
