ADC Network Unit user manual Front Panel, Overview August 7, Eniu LED Indicators and Controls

Chapter 1: Overview August 7, 2006

FRONT PANEL

Each ENIU has three LEDs, a STATUS LED, a LPBK LED, and a LOS/LINK LED. Under normal operation the ENIU STATUS LED is green. Front panel indicators and controls are defined in Table 1-1 on page 1-2. An ENIU is shown in Figure 1-2.

ENI-EGXXEGXX1B

			20476--A1
		Figure 1-2. ENIU Front View
	Table 1-1. ENIU LED Indicators and Controls
SIGNAL	COLOR		STATUS
STATUS	GREEN		ENIU Power OK and operating properly.
	RED		A service affecting fault exists within the ENIU.
	OFF		ENIU Power OFF.
LPBK	GREEN		Flashing if loopback is active on the ENIU.
	OFF		No active loopback detected.
LOS/ Link	RED		LOS detected on the network or subscriber interface.
	OFF		Normal operation.
CONTROL	DESCRIPTION
Reset	Pressing the reset button restarts the ENIU.
LPBK	Manual switch to enable or disable loopback at the ENIU.

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