Removing and Installing the Front Bezel
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LED Type
LED Pattern
Status Indication
Network speed (right)
Off
10 Mbps
Amber
100 Mbps
Green
1000 Mbps
Link activity (left)
Off
No link
Solid Green
Active link
Blinking Green
Data traffic activity
RJ45 Port LEDs (Management Port)
Power Supply Status Indicator Patterns
The engine has two power supplies, supplying hot-pluggable power
redundancy. The system distributes the power load across both power supplies
to maximize efficiency.
Each power supply has a single bi-color LED to indicate power supply status, as
described in the table below.
LED Pattern
Power Supply Condition
Green
Output on and OK
Off
No AC power to all power supplies
1 Hz blinking green
AC present / Only 12VSB on (PS off) or PS in cold redundant state
Amber
AC power cord unplugged or AC power lost. With a 2nd PS in parallel
still with AC input power
1 Hz blinking amber
Power supply warning events where PS continues to operate — high
temp, high power, high current, slow fan
Amber
Power supply critical event causing a shutdown, failure, OCP, OVP, fan
fail
2 Hz blinking green
Power supply firmware updating
Power Supply Status LED Indicator Patterns
Removing and Installing the Front Bezel
The NMS-A-305 engine comes with an optional front panel bezel that can be
attached to the front of the chassis by snapping the bezel onto the chassis
handles. A key lock allows you to lock the bezel in place so that front panel
controls cannot be used. You can still monitor system status indicators with the
