MPX 423 A Retired

Media Presentation Matrix Switcher

Key Features

Four switchers in one enclosure:
- 4x2 VGA switcher
- 4x2 S-video switcher
- 4x2 composite video switcher
- 12x2 stereo audio switcher
350 MHz (-3 dB) RGB video bandwidth, fully loaded
Audio input gain and attenuation
Speed-sensitive volume control
RS-232 control port
Ethernet monitoring and control

Model	Version Description	Part #
MPX 423 A	Media Presentation	60-683-01	Retired

This product has been retired.

The Extron MPX 423 A is a media presentation matrix switcher that merges four independent matrix switchers into a single, compact enclosure: a 4x2 VGA switcher, a 4x2 S-video switcher, a 4x2 composite video switcher, and a 12x2 stereo audio switcher. Compact and cost-effective, the MPX 423 A can be utilized for expanding the input capabilities of a typical projector or LCD display, while providing a second set of outputs for local or preview monitoring, or a second presentation system. This integrator-friendly matrix switcher is ideal for a variety of small-scale applications including classrooms, training and conference facilities, and 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 switcher that routes the signals of the input selected to the output of its group. Outputs of the other groups are muted. In Separate Switcher mode, the MPX 423 A becomes three switchers in one box, enabling independent switching to the output of any given I/O group. The MPX 423 A also offers a 12x2 audio 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.

Control and configuration of the MPX 423 A is provided via the front panel, RS-232, and Ethernet. 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.

Features

Four switchers in one enclosure:
4x2 VGA switcher
4x2 S-video switcher
4x2 composite video switcher
12x2 stereo audio switcher

350 MHz (-3 dB) RGB video bandwidth, fully loaded — Ensures switching and distribution of signals without degradation when one input signal drives both RGB outputs.

Single Switcher and Separate Switcher modes — Single Switcher mode allows one-touch switching. while Separate Switcher allows independent switching to the audio output of any given I/O group.

RGB mute — Allows the user to mute the video outputs, all at once or individually. The image is muted by removing the RGB signals, while leaving the sync signals active, allowing the display to be restored completely without any visible glitch or distortion.

Video genlock for composite video and S-video — The MPX 423 A includes genlock capabilities by locking to the first input of the composite video group, input five, and the first input of the S-video group, input nine. This allows for vertical interval switching and ensures smooth and glitch-free transitions between synchronous sources.

DSVP™ - Digital Sync Validation Processing — Extron's exclusive 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.

Audio input gain and attenuation — Allows users to set the level of gain or attenuation for each audio input channel, eliminating noticeable differences when switching between sources.

Audio output volume adjustment and muting — Can be set dynamically for each channel through the front panel, Ethernet, or serial control, eliminating the need for audio preamplifiers in many system designs.

Speed-sensitive volume control — Adjusting audio volume can be done 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.

Audio breakaway — The MPX 423 A provides the capability to break away an audio signal from its corresponding video signal. Switching can be done via the front panel or RS-232.

RS-232 control port — Using serial commands, the MPX 423 A can be controlled and configured via the embedded web page or integrated into a control system. Extron products use the SIS™ - Simple Instruction Set command protocol, a set of basic ASCII code commands that allow for quick and easy programming. The RS-232 port also makes it easy to install firmware updates.

Ethernet monitoring and control — Specifically engineered to meet the needs of professional AV environments, Ethernet-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 AV resource management application specifically designed to work with products that include Ethernet technology.

Front panel security lockout — Selectable via the front panel controls, RS-232, and Ethernet, this feature locks all input buttons and audio functions, preventing unauthorized tampering or adjustments.

1U, full-rack width metal enclosure — Can be easily mounted into any rack or podium, or under a desk.

Highly reliable, energy-efficient internal universal power supply — The 100-240 VAC, 50/60 Hz, international power supply provides worldwide power compatibility with high demonstrated reliability.

Specifications

MPX 423 A

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

≤-82 dB @ 1 MHz, ≤-66 dB @ 5 MHz, ≤-60 @ 10 MHz, ≤-51 dB @ 30 MHz, ≤-40 dB @ 100 MHz

S-video

≤-91 dB @ 1 MHz, ≤-75 dB @ 5 MHz, ≤-69 @ 10 MHz, ≤-60 dB @ 30 MHz, ≤-51 dB @ 100 MHz

Composite video

≤-78 dB @ 1 MHz, ≤-62 dB @ 5 MHz, ≤-56 @ 10 MHz, ≤-47 dB @ 30 MHz, ≤-37 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 VGA-UXGA RGBHV, RGBS, RGsB, RsGsBs, component video (bi-level or tri-level sync), S-video, or composite 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 Vp-p for Y of component video and S-video, and for composite video
0.7 Vp-p for RGB and for R-Y and B-Y of component video
0.3 Vp-p for C of S-video

Minimum/maximum levels

RGB/VGA

Analog: 0.3 V to 1.5 Vp-p with no offset

S-video, composite video

Analog: 0.5 V to 2.0 Vp-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 VGA-UXGA RGBHV, RGBS, RGsB, RsGsBs, component video (bi-level or tri-level sync), S-video, or composite video (follows input type)

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 Vp-p for Y of component video and S-video, and for composite video
0.7 Vp-p for RGB and for R-Y and B-Y of component video
0.3 Vp-p for C of S-video

Minimum/maximum levels

RGB/VGA outputs

0.3 V to 1.5 Vp-p

S-video outputs

0.4 V to 2.0 Vp-p

Composite video outputs

0.4 V to 2.0 Vp-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 Vp-p

Output level

TTL: 5.0 Vp-p, unterminated

Input impedance

510 ohms

Output impedance

75 ohms

Max. input voltage

5.0 Vp-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

≤-114 @ 1 kHz, ≤-103 @ 20 Hz to 20 kHz, fully loaded

Stereo channel separation

>80 dB @ 1 kHz

CMRR

>75 dB @ 20 Hz to 20 kHz

Volume range

-98 dB to 0 dB (volume numbers 0 to 64 in 1.0 dB steps)

NOTE	Full attenuation is volume level 0, -98 dB. The default for output 1 is -15 dB, volume level 50.

Audio input

Number/signal type

12 stereo, balanced/unbalanced

Connectors

(12) 3.5 mm captive screw connectors, 5 pole

Impedance

>12.5k ohms unbalanced, 25k ohms balanced, DC coupled

Nominal level

-10 dBV (316 mVrms)

Maximum level

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

Input gain adjustment

–18 dB to +24 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 unbalanced, 100 ohms balanced

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, female 9-pin 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 female RJ-45 connector

Ethernet data rate

10/100Base-T, half/full duplex with autodetect

Ethernet protocol

ARP, ICMP (ping), IP, TCP, DHCP, HTTP, Telnet

Program control

Extron Simple Instruction Set (SIS^™)
Microsoft^® Internet Explorer^®, Netscape^® Navigator^®, Telnet

General

Power

100 VAC to 240 VAC, 50-60 Hz, 15 watts, internal

Ambient temperature/humidity

Storage -40° to +158°F (-40° to +70°C) / 10% to 90%, noncondensing
Operating +32° to +122°F (0° to +50°C) / 10% to 90%, noncondensing

Cooling

Convection, no vents

Mounting

Rack mount

Yes, with included mounting kit

Furniture mount

Yes, with optional under-desk mounting kit

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 brackets.)

Product weight

7.0 lbs (3.2 kg)

Shipping weight

10 lbs (5 kg)

DIM weight

International

11 lbs (5 kg)

Vibration

ISTA 1A in carton (International Safe Transit Association)

Regulatory compliance

Safety

CE, c-UL, UL

EMI/EMC

CE, C-tick, FCC Class A, ICES, VCCI

Product warranty

3 years parts and labor

NOTE	All nominal levels are at ±10%.

NOTE	Specifications are subject to change without notice.

(7.6-090309-D8)

MPX 423 A Retired

Features

Specifications

Diagram

Panel Drawing