User Guide
DDOC0108-000-A2
CNS4 CSfC
3 - 1
Controls and Indicators
Revision 0.0
Controls and Indicators
3.1
CNS4 Chassis Controls / Indicators
NOTE
Refer to paragraph 3.1.1
for information regarding how to set chassis
LED illumination levels.
The CNS4 chassis (Figure 3.1) has four LED status indicators on the bottom of the front panel: S0,
S1, S2, and S3. During normal operation, S1, S2, and S3 will be ON; S0 will be off. The
illumination level of the LEDs is user programmable from 0 (off) to 100%. The function of these
indicators is as follows.
•
S0 (RED). This LED is the health alert indicator. It turns ON when any monitored parameter is
outside of specified tolerance. It turns OFF when the parameter returns to normal. It also turns
on when:
•
Internal communications cease for a period of 40 seconds.
•
Shutdown command is issued.
•
S1 (YELLOW). This LED turns ON whenever 28VDC is applied to the CNS4 power supply.
•
S2 (GREEN). This LED turns ON after the CNS4 has booted up and is ready for operation.
•
S3 (GREEN). This LED turns ON when the storage function (via the FSM-C modules) is ready
for read/writer operations.
There are no controls associated with CNS4 chassis.
Figure 3.1
CNS4 Chassis Indicators
3.1.1
Chassis LED Brightness
The brightness of the chassis LEDs can be independently set from 0 to 100% brightness. This
accomplished by changing the duty cycle of the power applied to the individual LEDs. The
command line interface (CLI) ledcntrl command is used in association with -s option to select the
individual LED and -d option to select its duty cycle. See paragraph 11.2.18
for detailed
information.
3.2
ILE Module Controls / Indicators
The ILE module (Figure 3.2) has three LED status indicators: P, F, and S. During normal operation,
P and S will be ON; F will be off. The illumination level of the LEDs is preset and non-adjustable.
S0
S1
S2
S3
POWER
GBE2
GBE0
GBE1
GBE3
DDOC0108
-0026
