105U-G Wireless Gateway
User Manual
Page
77
©
August 2003
Chapter 6
DIAGNOSTICS
Before installing a new system, it is always best to set up the system on a bench to test the
system configuration. It is always easier to detect problems when the modules are together.
After installation, test the radio paths, using the radio strength testing function described later
in this section. Record the radio strength and background noise measurements for later
reference (refer section 6.2.2 for this feature). If a later test shows that the radio path has
changed, this may be the cause of a new problem.
6.1
Diagnostics Chart
The LED indicators on the 105G have the following meanings: -
INDICATOR
CONDITION
MEANING
OK
OFF continuously
ON continuously
Module power off, or module failure
Normal Operation
RADIO TX
Flashes yellow
Radio transmitting
RADIO RX
Flashes green
Flashes red
Radio receiving good radio signal
Radio receiving weak radio signal
SERIAL TX
Flashes yellow
Brief flash each
second
Sending serial data
Configuration Mode
SERIAL RX
Flashes green
Flashes red
Receiving serial data
Serial RX buffer full
ACTIVE
OFF continuously
ON continuously
Flashes Yellow
Start-up initialising sequence
Diagnostic or configuration menu
Module in active operation
Re-configuration required
The Ethernet and Profibus modules also have four diagnostic LED’s on the end-plate - refer
section 6.4.
