Preliminar y, Introduction, cont’d – Extron Electronics MPX Plus 866 A Rev. B User Manual

Page 16

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Introduction, cont’d

MPX Plus 866 A Media Presentation Matrix Switcher • Introduction

1-6

PRELIMINAR

Y

Digital Sync Validation Processing (DSVP

™) (computer video group) —

In critical environments or unmanned, remote locations, it may be vital to

know that sources are active and switching. Extron’s DSVP confirms that

input sources are active by scanning all sync inputs for active signals. DSVP

provides instantaneous frequency feedback for composite sync or separate

horizontal and vertical sync signals via the switcher’s RS-232 ports or

Ethernet port. The frequency information can be displayed on any control

system or in the Windows-based control program on a LAN or Internet

Protocol (IP) connection (figure 1-2).

OR

Input Horz. Vert.

01 31.50 60.00

02 31.50 60.00

03 31.50 60.00

04 48.01 67.50

05 48.01 67.50

06 48.01 67.50

07 48.01 67.50

08 61.55 72.00

Sample control system panel

Windows-based control program

MATRIX INPUT STATUS

Input # 01

Signal: PRESENT
Sync Type: H&V
Vertical Freq.: 60 Hz
Horz Freq.: 31.5 kHz

Input # 02

Signal: PRESENT
Sync Type: H&V
Vertical Freq.: 60 Hz
Horz Freq.: 31.5 kHz

Input # 03

Signal: PRESENT
Sync Type: H&V
Vertical Freq.: 60 Hz
Horz Freq.: 31.5 kHz

Input # 04

Signal: PRESENT
Sync Type: H&V
Vertical Freq.: 60 Hz
Horz Freq.: 31.5 kHz

Input # 05

Signal: PRESENT
Sync Type: H&V
Vertical Freq.: 60 Hz
Horz Freq.: 31.5 kHz

Input # 06

Signal: PRESENT
Sync Type: H&V
Vertical Freq.: 60 Hz
Horz Freq.: 31.5 kHz

Input # 07

Signal: PRESENT
Sync Type: H&V
Vertical Freq.: 60 Hz
Horz Freq.: 31.5 kHz

Input # 08

Signal: PRESENT
Sync Type: H&V
Vertical Freq.: 60 Hz
Horz Freq.: 31.5 kHz

Input # 01

Signal: PRESENT
Sync Type: H&V
Vertical Freq.: 60 Hz
Horz Freq.: 31.5 kHz

Figure 1-2 — DSVP data display

RGB Delay (computer video group) —

The switcher can briefly blank the RGB

video output while it switches to the new input’s sync source, and then

switches the RGB signals. This allows a brief delay for the display to adjust

to the selected input’s sync timing before displaying the new picture, which

will appear without glitches. RGB delay, also known as Triple-Action

Switching

or video mute switching, is user selectable from 0 to 5 seconds, in

half-second increments.

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