Measurement Computing WLS-TEMP - Manual (Page 31)

WLS-TEMP Specifications
31
LED / button configuration
Table 21. LED configuration
Parameter Specification
Command LED Green LED – indicates a command was received by the device (either USB or
wireless)
Received Signal Strength Indicator
(RSSI) LEDs Three green LED bar graph.
LEDs turn on when receiving a wireless message and stay on for approximately
1 second after the end of the message. The LEDs 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 receiver sensitivity of the device.
 3 LEDs on: Very strong signal (>30 dB fade margin)
 2 LEDs on: Strong signal (>20 dB fade margin)
 1 LED on: Moderate signal (>10 dB fade margin)
 0 LED on: Weak signal (<10 dB fade margin)
Wireless Power LED Green LED: indicates that the internal RF module is powered.
Transmit LED Yellow LED: indicates transmitting data over the wireless link.
Receive LED Red LED: indicates receiving data over the wireless link.
Button Firmware-defined; this revision executes an LED test.