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Features, Audio switching models, All switchers – Extron Electronics SW RGBHV Series User Guide User Manual

Page 10: 3 sw rgbhv series switchers • introduction, Rgbhv & audio switcher audio conf/save

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SW RGBHV Series Switchers • Introduction

Features

Audio switching models

Inputs

— These switchers input 2, 4, or 6 stereo audio signals, balanced or

unbalanced, on 3.5 mm, 5-pole captive screw terminals.

Outputs

— The selected audio input is buffered and output, balanced or

unbalanced, on a 3.5 mm, 5-pole captive screw terminal.

Audio gain/attenuation

— Users can set the input level of audio gain or

attenuation (-18 dB to +24 dB) via the RS-232 link or from the front panel, to
be compatible with a wide range of line level (from -20 dBV to +4 dBV).
Individual input audio levels can be adjusted so there are no noticeable
volume differences between sources (figure 1-2) and for the best headroom
and signal-to-noise ratio. This function also eliminates the need for separate
preamps or attenuators when the switcher is used with professional (higher
line level) and consumer (lower line level) audio equipment.

Audio
Inputs

Audio
Inputs

Consumer VCR

No Noticeable Volume

Differences Between Sources

Audio System

Pro CD Player

+2

-1
-3
-7

-10
-14

Low Audio

Output Level

+5

+8

+4
+1

-2
-5
-8

-12

+7

+10

+2

-1
-4
-7

-10
-14

Output

Level

+5

+8

+4
+1

-2
-5
-8

-12

+7

+10

dBv

dBu

High Audio

Output Level

dBv

dBu

+2

-1
-3
-7

-10
-14

+5

+8

+4
+1

-2
-5
-8

-12

+7

+10

dBv

dBu

SW RGBHV A Series Switcher

SW6 RGBHV A

RGBHV & AUDIO SWITCHER

AUDIO

CONF/SAVE

6

5

4

3

2

1

AUTO SWICH

ACTIVE

-dB

+dB

Figure 1-2 — Audio gain and attenuation

Audio follow

— Audio can be switched with the corresponding video input.

Audio follow switching can be done via front panel control or under RS-232
remote control.

Audio breakaway

— Audio can be broken away from its corresponding video

input signal. Audio breakaway switching can be commanded only under
RS-232 remote control.

All switchers

Inputs

— The video switchers input up to 2, 4, or 6 RGB video signals on five

female BNC connectors.

Outputs

— The selected RGB video input is output on five female BNC connectors.

Bandwidth

— Bandwidth is 350 MHz (-3 dB). This high bandwidth allows the

switchers to switch all of the high-resolution video signals with no loss of
signal quality.

Input signal sensing —

The switcher continuously monitors all inputs to sense

when the input signal is active or inactive. The switcher reports changes in
the status of each input (active to inactive or inactive to active) on the RS-232
port.