Siemens DataNET Hub (DNH) user manual System Status LEDs, Board Status LEDs Startup LED Status

System Status LEDs

Description	The Advance DataNET Hub Communication boards have status LEDs
	for monitoring the DNH operation.
Figure 3-1.
Status LEDs

Board Status LEDs

Startup LED Status

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.

62 • Data Communications Setup 2000585-001