Extron electronic CrossPoint 124 manual Introduction, cont’d, 2 - Audio gain and attenuation

Introduction, cont’d

Operational flexibility — Operations such as input/output selection, setting of presets, and adjustment of audio levels can be performed on the front panel or over the RS-232/RS-422 link. The RS-232/RS-422 link allows remote control via a control system.

•QuickSwitch Front Panel Controller (QS-FPC™) — The CrossPoint series QS-FPC feature supports touch-of-a-button input and output selection, preset creation and selection, and audio gain and attenuation control.

•Windows-based control program — Extron’s Windows-based control program provides a versatile range of operational options with its graphical interface and drag-and-drop/point-and-click operation. The Windows-based control program also has an emulation mode that lets you create a switcher configuration file at the home office and then download it for use by the switcher on site.

•Simple Instruction Set (SIS™) — The remote control protocol uses Extron’s SIS for easy programming and operation.

Audio gain/attenuation — Users can set the level of audio gain or attenuation (-15dB to +9dB) via the RS-232/RS-422 link or from the front panel. Individual input audio levels can be adjusted so there are no noticeable volume differences between sources (figure 1-2).

dBu	VU
+19	15			dBu	VU
+16	12			+19	15
+13	9			+16	12
+10	6			+13	9
+7	3			+10	6
+4	0			+7	3
+1	-3		VCR	+4	0
-2	-6	Audio		+1	-3
-5	-9			-2	-6
-8	-12	inputs		-5	-9

-12	-15	-8	-12
Low audio		-12	-15
		Output
output level
	CONTROL	I/O	level
dBu	VU
	CROSSPOINT MATRIX SERIES SWITCHER		Audio system
+19	15

+13	9	Audio	CrossPoint Series switcher
+16	12
+10	6	inputs
+7	3
+4	0		No noticeable volume
+1	-3
			differences between sources
-2	-6
-5	-9
-8	-12
-12	-15

High audio	CD jukebox
output level

Figure 1-2 — Audio gain and attenuation

Global memory presets — 12 (CrossPoint 84, 88, 124, and 128) or 16 (CrossPoint 168 and 1616) global memory presets are a time-saving feature that lets you set up and store input/output configurations in advance and then recall those configurations when needed with a few simple steps.

Switching — Individually buffered, independent matrix switched outputs with audio follow and audio breakaway on HVA versions.

•Any input to any or all outputs

•Audio follow — Audio can be switched with the corresponding video input. This feature allows any audio signal to be selected with any video signal simultaneously to one or all outputs in any combination. Audio follow switching can be done via front panel control or under RS-232/RS-422 remote control.

•Audio breakaway — Audio can be broken away from its corresponding video signal. Audio breakaway switching can be done via front panel control or under RS-232/RS-422 control.

1-4 CrossPoint Matrix Switchers • Introduction