Overview

Front panel

Reset

Smart Slot

	A	B	A
Link - RX/TX	Status	Input	Output
Link - RX/TX	Status
10/100			Configuration
Network	Card		Configuration	Automatic
				Transfer Switch

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No.	Item	Description/Function

	Reset switch	Restarts the Network Management Card.

	Ethernet port	Connects the Automatic Transfer Switch to your network,
		using a network cable.

	Link–RX/TX LED	Indicates whether there is activity on the network.

	Status LED	Indicates whether power is applied to the Network
		Management Card.
	Preference button	Sets the preferred source to supply power to the load
		equipment. In normal operation, if both sources are available,
		the Automatic Transfer Switch will use the preferred source.
		Press the Preference button to change the preferred source.

	Preference A and B	Indicates which of the two sources, if any, is selected as the
	LEDs	preferred source. If both LEDs are off, neither source is
		preferred. If a source is asynchronous, the source’s LED will
		flash once per second.

	Source A and B LEDs	Provides information about the input voltage from each source.
		If the RMS input voltage and the measured frequency are
		within the selected tolerance range, the corresponding
		indicator will light.
		In a normal operating condition (full source redundancy), both
		LEDs are illuminated.

	Connector LEDs	Indicates which source is being used for the output (only one
		arrow will be lit at any time). The combination of Source
		LEDs, Connector LEDs, and Output LED provide a graphical
		view of the power flow through the Automatic Transfer
		Switch.

	Output LED	Shows that voltage is available at the output for the Automatic
		Transfer Switch.
	Configuration port	The local connection for accessing all the setup, status,
		maintenance, and diagnostic information for the Automatic
		Transfer Switch.

Automatic Transfer Switch - Installation and Quick Start