Clarity WN=5230-S manual Source

	WN-5230-S VideoWall User’s Guide
SOURCE	On = valid source detected on the selected input. If this is
	off, either the wrong source is selected, or the source has
	no signal in it.
GLOBAL	This LED glows whenever data activity is detected at the
	RS-232 connector. It does not matter whether the packet
	was addressed to this unit on not, or even whether this is
	a command formatted for Clarity display use. It tells you
	there is a good connection to the controlling computer.
	The brightness of the LED is proportional to the density of
	the incoming data.
LOCAL	This LED glows very briefly whenever a valid packet of
	data is detected at the RS-232 connector and the packet
	is meant for this unit. It may be a global command, or a
	command addressed specifically to this unit. This display
	unit will try to execute this command. It will return an
	acknowledgement (ACK) only if the command was
	addressed to this unit exclusively.

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