Chapter 2 Skybox 5500 specifications
Skybox 5500 Appliance 9
Letter Feature
B NMI button (recessed; tool required for use)
C NIC-1 activity LED
D NIC-3 activity LED
E System cold reset button
F System status LED
G Power button with integrated LED
H Hard drive activity LED
I NIC-4 activity LED
J NIC-2 activity LED
Front panel LED functions
LED Color/state Description
Power/Sleep
Green/on Power on
Green/blinking Sleep
Off Power off
NIC LEDs
Green/on Network link but no network activity
Green/blinking Network activity
Off No link
System Status
Green/on System ready/no alarm
Green/blinking System ready, but degraded: redundancy
lost such as a power supply or fan failure;
non-critical temp/voltage threshold; battery
failure; or predictive power supply failure.
Amber/on Critical Alarm: Critical power modules
failure, critical fans failure, voltage (power
supply), critical temperature and voltage
Amber/blinking Non-Critical Alarm: Redundant fan failure,
redundant power module failure, non-critical
temperature and voltage
Off Power off: System unplugged
Power on: System powered off and in
standby, no prior
degraded\non-critical\critical state