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IP Link® Best Installation Practices
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 IP Link. 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.
- 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, IP Link, 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 serial control port
— Using serial commands, the MPX 423 A can be controlled and configured via the embedded web page or integrated into third-party control systems. 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.
- IP Link® Ethernet monitoring and control
— 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 A/V resource management application specifically designed to work with products that include IP Link technology.
- Front panel security lockout
— Selectable via the front panel controls, RS-232, and IP Link, 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.
- Internal universal power supply
— The 100-240 VAC, 50/60 Hz, international power supply provides worldwide power compatibility.
| MPX 423 A Matrix Switcher |
|
| 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 |
| 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 |
| 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, 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, ICMP (ping), IP, TCP, DHCP, HTTP, Telnet |
| Program control |
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 |
| 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, unvented |
| 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, CUL, UL |
| EMI/EMC |
CE, C-tick, FCC Class A, ICES, VCCI |
| MTBF |
30,000 hours | |
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