Mechanical; Led / Button Configuration - Measurement Computing WLS-TC User Manual

WLS-TC User's Guide

Mechanical

Parameter
Dimensions (L × W × H)
USB cable length

LED / button configuration

Parameter
Command LED
Received Signal Strength Indicator
(RSSI) LEDs
Wireless Power LED
Transmit LED
Receive LED
Button
Wireless Power
Table 14. Mechanical specifications
Specification
128.52 x 88.39 × 35.56 mm (5.06 × 3.48 × 1.43 in.)
3 m (9.84 ft) max
Table 15. LED configuration
Specification
Green LED – indicates a command was received by the device (either USB or
wireless)
Three 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.
These 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 device's receiver sensitivity.
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 LEDs on: Weak signal (< 10 dB fade margin)

Green LED: the internal RF module is receiving power.
Yellow LED: data is being transmitted over the wireless link.
Red LED: data is being received over the wireless link.
Firmware defined; this revision executes an LED test.
Command
Transmit
Receive
23
Button
(firmware
defined)
Received
Signal
Strength
Specifications