Clarity WN-5040-720 manual Connections, Analog & Digital Sources, Limits of loop-thru

2.5 Connections

2.5.1 Connections, Analog & Digital Sources

The Digital Out connector carries the selected input.

All of the source inputs, the picture inputs, have loop-thru output connectors. These loop-thrus are buffered.

•Analog 1 and Analog 2 are 15-pin VGA-type con- nectors. Margay will accept a wide range of com- puter resolutions up to 1600 × 1200 and

1920 × 1080. Each of these connectors has a ded- icated loop-thru output. These connectors are also used for RGB video with separate H&V sync, composite sync, or sync on green; also for YPbPr video at 480p, 720p, or 1080i.

When an Analog input has a source with sync on green or composite sync, the DVI Out may not show the picture properly. If the source is present at power up, it usually works well, but if you disconnect and reconnect the source, the DVI loop-thru stops working for these two types of sync.

•Digital In is a standard DVI cable. It has a loop- thru, but this Digital Out connector is not dedi-

cated to the Digital In connector. Instead, the Digital Out connector carries the picture of the currently selected input. For instance, if the Analog 1 connector is selected, the picture on the Digital Out connector is a DVI version of that Analog 1 picture.

The DVI does not carry the picture from the composite, the S-Video, or the component YPbPr inputs.

Limits of loop-thru

No signal can loop-thru forever. There is always some degradation of the signal along the way.

If you want to loop a single source to a number of Margays, try one of the methods shown here. In dia- gram A the signal loops thru six times at most. In diagram B the signal loops thru four times at most. In each diagram the cubes marked X is the farthest from the source.

	A
PC	Connecting with a combination
	of analog and digital loop-thru
SVGA
Analog connections
	X
	Digital
	connections

	B
PC	Connecting with a distribution
	amplifier and loop-thru
SVGA
Distribution
Amplifier
	X
	X
Digital	X
connections
	Digital
	connections

22