Measurement Computing WLS-TEMP - Manual (Page 22)

WLS-TEMP Specifications
22
LED Function
Received Signal Strength
(RSS) Indicator LEDs 3 green LED bar graph. The LEDs will turn on when receiving a wireless message and
stay on for approximately 1 second after the end of the message. They indicate the
amount of fade margin present in an active wireless link. Fade margin is defined as the
difference between the incoming signal strength and the device’s receiver sensitivity.
 Three LEDs on: Very strong signal (> 30 dB fade margin)
 Two LEDs on: Strong signal (> 20 dB fade margin)
 One LED on: Moderate signal (> 10 dB fade margin)
 No LEDs on: Weak signal (< 10 dB fade margin)
LED Test button
The LED test button tests the functionality of the LEDs. When pressed, each LED lights in sequence (first the
Command LED then left to right from the Wireless Power LED to the RSS indicator LEDs).