Extron electronics MPX 423 A Quick Manual

Matrix SwitcherS

MPX 423 A

Media Presentation Matrix switcher

n Three matrix switchers in one

enclosure:

 – 4x2 VGA and stereo

audio switcher

 – 4x2 S-video and stereo

audio switcher

 – 4x2 composite video and

stereo audio switcher

n 350 MHz (-3 dB) RGB

video bandwidth

n 150 MHz (-3 dB) video bandwidth

n Two operating modes: Single

Switcher or Separate Switcher

n Digital Sync Validation

Processing (DSVP™)

n RGB mute

n Input audio gain and attenuation

n Audio output volume control

The Extron MPX 423 A is a media presentation matrix switcher that combines

three independent matrix switchers in a single, compact enclosure: a 4x2 VGA

switcher, a 4x2 S-video switcher, and a 4x2 composite video switcher. It is ideal for

a variety of applications including classrooms, training and conference facilities,

and residential entertainment systems.

n Audio breakaway

n RS-232 control

n IP Link

n Internal international power supply

™

Ethernet control

www.extron.com

DesCrIPtION

MPX 423 A Video Signal Type Video Connectors Inputs Ouputs

1 VGA 15-pin HD 4

4
4

2
2
2

4-pin mini DIN
BNC

S-Video
Composite Video

2
3

50/60 Hz

100-240V 0.3A

L1R

L 2 R

L3R

L 4 R

L1R

L 2 R

L3R

L 4 R

L1R

L 2 R

L3R

L 4 R

L3R

L 4 R

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RESETACT LINK

RS-232

LAN

12341

56781 91011121

2

2

2

COMPUTER IN COMPUTER OUT VIDEO IN S-VIDEO INOUT OUT COMPUTER VIDEO S-VIDEO VARIABLE

2

1

2 4

31

INPUTS

0.5A MAX

12V

POWER

+

-

OUTPUTS

MMX 42 AV

2

1

2 4

31

INPUTS

0.5A MAX

12V

POWER

+

-

OUTPUTS

MMX 42 SV A

TX RX

RS-232

INPUTS

OUTPUTS

1

L R2L R

1

L R

4 5 2

L R L R L R

TX RX

RS-232

INPUTS

OUTPUTS

1

L R2L R

1

L R

4 5 2

L R L R L R

TX RX

RS-232

L R

POWER

12V
.5A MAX

INPUT 2

INPUT 1

AUDIO

AUDIO

INPUT 4 OUTPUT 2

INPUT 3

RHG B

V

AUDIO

OUTPUT 1

AUDIO

TALLY

OUT

5V

+

+

4 Input VGA and Stereo Audio Switcher

4 Input S-video and Stereo Audio Switcher

4 Input Composite Video and Stereo Audio Switcher

MPX 423 A

Features

The Extron MPX 423 A Media Presentation Matrix Switcher is a

n

cost-effective solution for expanding projector input capabilities,
while providing an additional output for a second display used in a
presentation or for preview monitoring. This compact, integrator­friendly matrix switcher is ideal for a variety of small-scale applications
including classrooms, training and conference facilities, and

n Single Switcher mode – Allows one-touch switching. When one of

sophisticated home theaters.

When switching the inputs of the MPX 423 A, the user can choose
between the Single Switcher mode and Separate Switcher mode.
Single Switcher mode turns the MPX 423 A into a single 12 input

n Separate Switcher mode – Allows independent switching to the
switcher that routes the signals of the input to the outputs of its
group. Outputs of the other groups are muted, while the audio
output is restricted to its own group. This is especially useful for
feeding projectors or plasmas with auto switching capability.

n RGB Mute – Allows the user to mute the video outputs, all at once

In Separate Switcher mode, the MPX 423 A effectively becomes
three switchers, enabling independent switching to the output
of any given I/O group. The MPX 423 A also offers a 12x2 audio

n Video genlock (for composite and S-video) – Allows for vertical
switcher that can access the audio of all three video groups.
Balanced and unbalanced audio inputs and outputs are provided on
convenient captive screw connectors.

n Digital Sync Validation Processing (DSVP™) – Extron’s exclusive

Control of the MPX 423 A is provided via the front panel, RS-232,
or IP Link™ ethernet control. Housed in a 1U, full rack width metal
enclosure, the MPX 423 A can be easily mounted into any rack or
podium, or under a desk.

n Audio input gain and attenuation – Allows users to set the level

Bandwidth – The MPX 423 A provides a minimum of 350 MHz (-3dB)

RGB video bandwidth for high resolution computer-video sources,
and 150 MHz (-3dB) of video bandwidth for composite-video and
S-video sources. This maintains signal integrity and ensures switching
and distribution of video signals without degradation.

the 12 inputs is accessed, the signals of the input will be routed to
the outputs of its group. Outputs of the other groups are muted,
while audio output is restricted to its own group.

output of any given I/O group. This effectively divides the
MPX 423 A into three separate switchers.

or individually. The image is muted by removing the RGB signals,
while leaving the sync signals active, allowing the image to be
restored without any visible glitch or distortion.

interval switching and enables smooth, seamless transitions when
switching between synchronous video sources.

DSVP verifies active sources by displaying horizontal and vertical scan
rate information. This allows the monitoring of input signal status
information, as well as the scan rate for the computer signal inputs.

of gain or attenuation for each audio input channel, eliminating
noticeable differences when switching between sources.

Three Matrix Switchers in One

n Speed-sensitive volume control – Audio volume can be adjusted

in 0.5 db or 2.5 dB increments, depending on how fast the volume
adjustment knob is turned. This automatic sensitivity control allows
the user to easily fine-tune the audio volume.

n Audio breakaway – Provides the capability to break an audio

signal away from its corresponding video signal, allowing the audio
channels to be operated as a separate matrix switcher.

n RS-232 control – Using RS-232 serial commands, the MPX 423 A

can be controlled and configured via the Extron Windows®-based
control program, or integrated into third-party control systems.
Extron products use the Simple Instruction Set (SIS™) command
protocol, a set of basic ASCII code commands that allow for quick
and easy programming.

n IP Link™ – Specifically engineered to meet the needs of

professional A/V environments, IP Link-enabled products offer an
integrated Web server with high performance architecture, global
compatibility with industry standard Ethernet communication
protocols, multi-user support, and a Web-based asset management
application specifically designed to work with products that
include IP Link technology.

n Front panel security lockout – Prevents unauthorized use when

the matrix switcher is installed in an unsecured environment where
easy access is not desirable. In lock-out mode, a special button
combination is required to operate the front panel.

n Internal international power supply – The autoswitchable,

internal power supply provides worldwide power compatibility.

sPeCIFICatIONs

Video

Routing ................................................... (3) 4 x 2 matrix switchers

Gain ....................................................... Unity

Bandwidth

RGB signals ....................................... 350 MHz (-3 dB)

S-video or composite video signals .... 150 MHz (-3 dB)

Differential phase error ........................... 1.0˚ at 3.58 MHz and 4.43 MHz

Differential gain error .............................. 1.0% at 3.58 MHz and 4.43 MHz

Crosstalk (RGB signals) ............................ <-50 dB @ 10 MHz, <-30 dB @ 100 MHz

Switching speed

RGB signals’ sync .............................. <5 ms (max.)

RGB, S-video, composite video .......... 100 ms

Video input

Number/signal type

RGB/VGA inputs ................................ 4 RGBHV, RGBS, RGsB, RsGsBs, component video

S-video inputs ................................... 4 S-video

Composite video inputs .................... 4 composite video

Connectors

RGB/VGA inputs ................................ 4 female 15-pin HD

S-video inputs ................................... 4 female 4-pin mini DIN

Composite video inputs .................... 4 female BNC

Nominal level ......................................... 1 V p-p for Y of component video and S-video,

and for composite video 0.7 V p-p for RGB

0.3 V p-p for R-Y and B-Y of component video,

and for C of S-video
Minimum/maximum levels

RGB/VGA inputs ................................ Analog: 0.3 V to 1.5 V p-p with no offset

S-video inputs ................................... Analog: 0.5 V to 2.0 V p-p with no offset

Composite video inputs .................... Analog: 0.5 V to 2.0 V p-p with no offset

Impedance ............................................. 75 ohms

Horizontal frequency............................... 15 kHz to 145 kHz

Vertical frequency ................................... 30 Hz to 170 Hz

Return loss

RGB/VGA inputs ................................ <-40 dB @ 5 MHz

S-video inputs ................................... <-30 dB @ 5 MHz

Composite video inputs .................... <-30 dB @ 5 MHz

Video output

Number/signal type

RGB/VGA outputs ............................. 2 RGBHV, RGBS, RGsB, RsGsBs, component video

S-video outputs ................................. 2 S-video

Composite video outputs .................. 2 composite video

Connectors

RGB/VGA outputs ............................. 2 female 15-pin HD

S-video outputs ................................. 2 female 4-pin mini DIN

Composite video outputs .................. 2 female BNC

Nominal level ......................................... 1 V p-p for Y of component video and S-video,

and for composite video 0.7 V p-p for

RGB 0.3 V p-p for R-Y and B-Y of component

video, and for C of S-video
Minimum/maximum levels

RGB/VGA outputs ............................. 0.3 V to 1.5 V p-p

S-video outputs ................................. 0.4 V to 2.0 V p-p

Composite video outputs .................. 0.4 V to 2.0 V p-p

Impedance ............................................. 75 ohms

Return loss .............................................. -40 dB @ 5 MHz

RGB/VGA inputs ................................ <-40 dB @ 5 MHz

S-video inputs ................................... <-30 dB @ 5 MHz

Composite video inputs .................... <-30 dB @ 5 MHz

DC offset

RGB/VGA outputs ............................. ±5 mV with input at 0 offset

S-video outputs ................................. 1.5 V with input at 0 offset

Composite video outputs .................. 1.5 V with input at 0 offset

Switching type ........................................ (S-video and/or composite video) Vertical interval

Sync

Input type (RGB/VGA group) .................. RGBHV, RGBS, RGsB, RsGsBs

Output type (RGB/VGA group) ............... RGBHV, RGBS, RGsB, RsGsBs (follows input)

Standards ............................................... NTSC 3.58, NTSC 4.43, PAL, SECAM

Input level............................................... 1.9 V to 5.0 V p-p

Output level............................................ TTL: 5.0 V p-p, unterminated

Input impedance .................................... 510 ohms

Output impedance ................................. 75 ohms

Max input voltage .................................. 5.0 V p-p

Max. propagation delay .......................... 30 ns

Max. rise/fall time ................................... 4.2 ns

Polarity ................................................... Positive or negative (follows input)

Audio

Routing ................................................... 12 x 2 stereo matrix switcher

Gain ....................................................... Unbalanced output: -6 dB; balanced output 0 dB

Frequency response ................................ 20 Hz to 20 kHz, ±0.05 dB

THD + Noise ........................................... 0.03% @ 1 kHz, 0.3% @ 20 kHz at nominal level

S/N ......................................................... >90 dB, output 21 dBu, balanced, at maximum

output (unweighted)

Crosstalk ................................................. <-120 dB @ 1 kHz, fully loaded

Stereo channel separation ....................... >80 dB @ 1 kHz

CMRR ..................................................... >75 dB @ 20 Hz to 20 kHz

Volume range ......................................... -100 dB to 0 dB (volume numbers 0 to 100

in 0.5 dB steps)
NOTE: Attenuation = (volume number - 100).

The default is -30 dB = volume number 70.

Audio input

Number/signal type ................................ 12 stereo, balanced/unbalanced

Connectors ............................................. (12) 3.5 mm captive screw connectors, 5 pole

Impedance ............................................. >25k ohms unbalanced, 50k ohms balanced,

DC coupled

Nominal level ......................................... -10 dBV (316 mVrms)

Maximum level ....................................... +20 dBu, (balanced or unbalanced) at 1%THD+N

Input gain adjustment ............................ –12 dB to +12 dB, adjustable per input

NOTE: 0 dBu = 0.775 Vrms, 0 dBV = 1 Vrms, 0 dBV ≈ 2 dBu

Audio output

Number/signal type ................................ 2 stereo, balanced/unbalanced

Connectors ............................................. (2) 3.5 mm captive screw connectors, 5 pole

Impedance ............................................. 50 ohms unbal., 100 ohms bal.

Gain error ............................................... ±0.1 dB channel to channel

Maximum level (Hi-Z) ............................. >+20 dBu, balanced or unbalanced at 1%THD+N

control/remote — Switcher

Serial control port ................................... RS-232, 9-pin female D connector

Baud rate and protocol ........................... 9600 baud (default), 8 data bits, 1 stop bit, no

parity

Serial control pin configurations.............. 2 = TX, 3 = RX, 5 = GND

Ethernet control port .............................. 1 RJ-45 female connector

Ethernet data rate ................................... 10/100Base-T, half/full duplex with autodetect

Ethernet protocol .................................... ARP, DHCP, ICMP (ping), TCP/IP, Telnet, HTTP

Program control ..................................... Extron’s control/configuration program for

Windows® Extron’s Simple Instruction Set –

(SIS™) Microsoft® Internet Explorer, Netscape®

Navigator®, Telnet

GenerAl

Power ..................................................... 100 VAC to 240 VAC, 50/60 Hz, 15 watts,

internal, autoswitchable

Rack mount ............................................ Yes, with included brackets, part #70-077-03.

Also furniture mountable with optional Under-

Desk Mounting Kit, part #70-222-01

Enclosure type ........................................ Metal

Enclosure dimensions .............................. 1.75" H x 17.4" W x 8.5" D (1U high, full rack

wide) 4.4 cm H x 44.2 cm W x 21.6 cm D

(Depth excludes connectors and knob. Width

excludes rack ears.)

Product weight ....................................... 7.0 lbs (3.2 kg)

Shipping weight ..................................... 10 lbs (5 kg)

DIM weight

International ..................................... 11 lbs (5 kg)

Listings ................................................... UL, CUL

Compliances ........................................... CE, FCC Class A, VCCI, AS/NZS, ICES

NOTE: All nominal levels are at ±10%

Model Version Description Part Number

MPX 423 A Media Presentation ................................................. 60-683-01

Specifications are subject to change without notice.

MPX 423 A

MEDIA PRESENTATION MATRIX

VOLUME

1

1

OUTPUTS/

AUDIO

MODE SINGLE SEPARATE

INPUTS

COMPUTER

2

2 3 4

1

1

OUTPUTS INPUTS

S-VIDEO

2

2 3 4 I/O

AUDIO

AUDIO OUTPUT 1

VIDEO

MUTE

1

1

OUTPUTS INPUTS

VIDEO

2

2 3 4

50/60 Hz

100-240V 0.3A

L1R

L 2 R

L3R

L 4 R

L1R

L 2 R

L3R

L 4 R

L1R

L 2 R

L3R

L 4 R

L3R

L 4 R

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RESETACT LINK

RS-232

LAN

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2

3

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567

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COMPUTER IN COMPUTER OUT VIDEO IN S-VIDEO INOUT OUT COMPUTER VIDEO S-VIDEO VARIABLE

aPPlICatION DIagram

Extron Electronics, Europe

Beeldschermweg 6C, 3821 AH Amersfoort
The Netherlands
+800.3987.6673 +31.33.453.4040
FAX [phone]

Extron Electronics, Asia

135 Joo Seng Rd. #04-01
PM Industrial Bldg.
Singapore 368363
+65.6383.4400 FAX [phone]

Extron Electronics, Japan

Kyodo Building, 16 Ichibancho
Chiyoda-ku, Tokyo 102-0082
Japan
+81.3.3511.7655 FAX [phone]

Extron Electronics, USA

1230 South Lewis Street
Anaheim, CA 92805

800.633.9876 714.491.1500
FAX [phone]

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OMPUTER IN

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OMPUTER OUT

VIDEO IN

S

-VIDEO IN

OUT

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OMPUTER

VIDEO

S-VIDEO

VA

R

IBLE

Amplifier

Projector

Plasma/LCD Display

VCR (4)

DVD (4)

PC (2)

Laptop (2)

Speakers

Extron
MPX 423 A

Media Presentation
Matrix

TCP/IP

Network

VGA

S-video

Video

Video

VGA

S-video

PaNel DrawINgs

MPX 423 A - Front

MPX 423 A - Back

© 2007 Extron Electronics. All rights reserved. All trademarks mentioned are the property of their respective owners.

07-02
68-1004-01
REV. B