
System states and LEDs
Summit WM Series WLAN Switch and Altitude Access Point Software Version 4.1 User Guide
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Table 18 shows the sequence of the Status and Activity LEDs.
Altitude AP system states
For the Altitude AP, the Status LED in the center also indicates power. The Status LED is dark when
unit is off and is green (solid) when the AP has completed discovery and is operational.
The chart below shows states and corresponding Status LED displays:
Table 18: Status and Activity LED sequence
System State Status LED Activity LED
Power up Off Off
Services started: WDTSTAT installed (init.d starts services) Blinking Amber Off
Startup Manager Task started Solid Amber Blinking Amber
Startup Manager Task completes startup – all components
started
Solid Green Blinking green, if traffic
Blank, if no traffic
A component fails to start or needs restarting (Startup Manager
Task retrying that component)
Solid Amber Blinking green
Summit WM series switch fails to boot Solid Red Off
A component fails (no more retries) Solid Red Off
System about to be reset by watchdog Blinking Red Off
Table 19: Altitude AP system states and status LED displays
State / Process Description LEDs
Power Altitude AP not powered. Off
Power Start up: Power On Self Test (POST) Steady green
(briefly)
Power Power On Self Test (POST) successful Off (briefly)
Discovery If the POST self test is successful, the AP begins Discovery process.
Altitude AP is powered on and searching for an active Summit WM
series switch. It sends a discover message and waits for a response
Orange (steady)
Fail to find DHCP Altitude AP failed to find DHCP (will stay in this state until a route
appears).
Red-orange
(alternate blink)
Failed discovery If there are SLP issues in failed discovery, the LED display changes. Green-orange
(alternate blink)
Registration Altitude AP learns the Summit WM series switch's IP address, and
can begin the Registration process
Orange (blink)
Failed Registration Altitude AP fails to learn the Summit WM series switch's IP address. Red (blink)
Standby 1 Altitude AP enters this state from Discovery when it encounters
an active Summit WM series switch and completes the
Registration process.
2 Altitude AP enters this state from Active when it receives a
control message from the Summit WM series switch to enter this
state. If the Altitude AP has any wireless device traffic, it will
drop the traffic.
Green (blink)
Altitude AP fails to register. It will wait 5 seconds and try again. Red (slow blink)
Firmware download from the Summit WM series switch is in progress Orange + green
(blink)
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