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System Status LEDs
Description
Figure 3-1.
Status LEDs
Board Status LEDs
Startup LED Status
62 • • • • Data Communications Setup
The Advance DataNET Hub Communication boards have status LEDs
for monitoring the DNH operation.
During the power-on self-test, all the LEDs will light briefly to indicate that
all LEDs and their driving electronics are functioning.
After a normal power-up and a successful self-test, the green (NORMAL)
system status LED will light. In the event of a self-test failure, the red
(FAULT) system status LED will light, and the yellow (WARN) system
status LED will flash an error code. The same indication (red LED on;
yellow LED blinking) is used to indicate duplicate IP addresses.
2000585-001
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