User manual

905U-G Wireless Gateway User Manual
Page 133 ©September 2004
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 905G 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 initializing 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.