WLNG-EK-DP551 Quatech, WLNG-EK-DP551 Datasheet - Page 57

• Manufacturer Part Number: WLNG-EK-DP551
• Description: WiFi / 802.11 Modules & Development Tools AIRBORNE EVAL KIT EMBEDDED MODULES
• Manufacturer: Quatech
• Series: Airborne™r
• Type: Transceiver, 802.11 b/gr

Specifications of WLNG-EK-DP551

• Mfg Application Notes: Transition to DP550 Devices AppNote
• Frequency: 2.4GHz ~ 2.4835GHz
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• For Use With/related Products: Airborne Modules

Quatech, Inc.
13.0 Indicator LED’s
100-8082-110
The Airborne Evaluation Board includes a set of indicator LED’s that provide important
feedback on the state of the module and its ability to communicate with the network.
Understanding these LED’s can help not only in debugging the evaluation board but also
on deciding how you will implement them in your design.
Table 51 provides a description of the normal LED sequence and the module state for the
combinations of these LED’s. The table also provides some possible causes for failure
and suggests appropriate remedies.
LED Configuration
802.11 network located
and radio is attempting
Airborne Device Server
enabled and searching
for a wireless network
Evaluation Board is
Evaluation Board is
Module has passed
Power-on Self Test
802.11b/g radio is
Table 51 - Indicator LED Status Description
to associate
Airborne Enterprise EVB Users Guide
powered
(POST)
State
OFF
Description
No power has been applied to the evaluation board
and SW1 is in the OFF state.
The power has been applied to the Evaluation board
and SW1 is in the ON position. The Airborne Device
Server Module has initiated the boot cycle.
The boot cycle may take 10-12 seconds.
When the RF_ACT# LED starts to blink the Airborne
Device Server Module has enabled the radio and it is
actively scanning for a wireless network that matches
the installed configuration. The RF_ACT LED will
continue to blink until a network has been found.
The Airborne Device Server module has located a
wireless network that matches its installed
configuration and has initiated authentication.
The RF_ACT# LED turning solid can happen both
before and after the POST LED turning ON.
If authentication fails the LED will return to blinking
after several seconds.
The Airborne Device Server Module has passed POST
and has started to run network and device services.
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