This document was prepared and written by the Technical Documentation department at:
Crestron Electronics, Inc.
15 Volvo Drive
Rockleigh, NJ 07647
1-888-CRESTRON
Regulatory Compliance
As of the date of manufacture, the DM-TX-200-2G and DM-TX-400-3G have been tested and found to comply
with specifications for CE marking and standards per EMC and Radiocommunications Compliance Labelling.
Federal Communications Commission (FCC) Compliance Statement
This device complies with part 15 of the FCC Rules. Operation is subject to the following conditions:
(1) This device may not cause harmful interference and (2) this device must accept any interference received,
including interference that may cause undesired operation.
CAUTION: Changes or modifications not expressly approved by the manufacturer responsible for compliance
could void the user’s authority to operate the equipment.
NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful
interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy
and, if not installed and used in accordance with the instructions, may cause harmful interference to radio
communications. However, there is no guarantee that interference will not occur in a particular installation. If
this equipment does cause harmful interference to radio or television reception, which can be determined by
turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the
following measures:
Reorient or relocate the receiving antenna
Increase the separation between the equipment and receiver
Connect the equipment into an outlet on a circuit different from that to which the receiver is connected
Consult the dealer or an experienced radio/TV technician for help
Industry Canada (IC) Compliance Statement
This Class B digital apparatus complies with Canadian ICES-003.
Cet appareil numérique de la classe B est conforme à la norme NMB-003 du Canada.
This device includes an aggregation of separate independent works that are each generally copyrighted by Crestron Electronics, Inc., with all rights
reserved. One of those independent works, Linux Bridge Project, is copyrighted under the GNU GENERAL PUBLIC LICENSE, Version2,
reproduced in “GNU General Public License” on page 37, where the corresponding source code is available at: ftp://ftp.crestron.com/gpl.
All brand names, product names and trademarks are the property of their respective owners.
The DM-TX-200-2G and the DM-TX-400-3G are DM® CAT transmitters and
switchers that install in a double-gang or a triple-gang electrical box (respectively) to
provide a convenient interface for computers and high-definition AV sources as part
of a complete DigitalMedia™ system.
With both HDMI
ideal for wall, lectern, and floor box applications in a boardroom, classroom, or
residence to provide an input for a laptop computer or similar source. The
DM-TX-400-3G includes additional input connections for SPDIF and analog AV
sources. Both transmitters connect to any DM-MD series DigitalMedia switcher or
DM-RMC-100 Room Controller (all sold separately) via a single DM cable.
®
and RGB inputs, the DM-TX-200-2G and DM-TX-400-3G are
Features and Functions
• DigitalMedia transmitter and multimedia interface
• Built-in 2x1 (DM-TX-200-2G) or 4x1 (DM-TX-400-3G) AV switcher
• DM CAT output supports up to 450 foot (137 meter) cable length
• 2-gang (DM-TX-200-2G) or 3-gang (DM-TX-400-3G) wall mount
design
• Available colors include black or white
• Provides HDMI, RGB, component, and composite video inputs
• Supports DVI and DisplayPort Multimode sources
• Includes S/PDIF, RCA, and mini-TRS audio inputs
(Continued on following page)
1. For DigitalMedia CAT wiring, use DM-CBL DigitalMedia Cable. Up to two DM Repeaters (Model
DM-DR, sold separately) may be required. Refer to the latest version of the Crestron DigitalMedia
Design Guide (Doc. 4789) for complete wiring guidelines. It is available from the Crestron Web site
(www.crestron.com/dmresources
2. Composite video inputs only available on DM-TX-400-3G.
3. HDMI requires an appropriate adapter or interface cable to accommodate a DVI or DisplayPort
Multimode signal. CBL-HD-DVI and CBL-DP-HD interface cables available separately.
4. S/PDIF and RCA audio inputs only available on DM-TX-400-3G.
• Includes USB HID (human interface device) keyboard/mouse port
• Affords single-wire connection to a DM-RMC-100 or DM-MD
DigitalMedia
As the leader in HDMI and control system technologies, Crestron® has developed
DigitalMedia, the first complete HD AV distribution system that takes HDMI to a
higher level, and allows virtually any mix of AV sources to be distributed throughout
the home, office, school, or virtually any other facility.
switcher (both sold separately)
• Detects and reports detailed video and audio input information
• Performs automatic AV signal format management via EDID
• Enables device control via CEC
• Easy setup and diagnostics tools via software
• Extends the life of analog-based AV systems
DigitalMedia distributes uncompressed digital video and audio signals up to 450 feet
(137 meters) using DM cable
1
. DigitalMedia thoughtfully manages all of the
different signals and devices, matching each source’s output to the capabilities of the
selected display(s) without using scaling or compression. Every signal is preserved
in its native video resolution and audio format, ensuring a pure, lossless signal path
throughout.
Multimedia Computer/AV Interface
The DM-TX-200-2G provides simple switching between two inputs. The
DM-TX-400-3G provides versatile switching between four different video and audio
inputs. The HDMI input supports HDCP and handles WUXGA computer resolutions
and 1080p60 HDTV with multi-channel lossless audio. The HDMI input can also
handle DVI and DisplayPort Multimode signals using an appropriate adapter or
dongle2. The RGB input handles all analog RGB signals up to WUXGA 1920x1200
pixels, as well as component video up to 1080p60
also provided to accept analog audio signals from an unbalanced line-level or
headphone output. On the DM-TX-400-3G, both digital and analog audio signals are
supported via HDMI, S/PDIF, and RCA inputs.
Used with a single DM-RMC-100 Room Controller and optional Crestron Control
System (both sold separately), the DM-TX-300-2G and DM-TX-400-3G afford very
simple solutions for extending a multimedia computer or AV signal to a single
display up to 450 feet (137 m) away
1
. As part of a larger system using a DM-MD
series switcher, multiple DM-TX-200-2G and DM-TX-400-3Gs may be installed to
enable the distribution of several sources at different locations to feed multiple
displays throughout any room or larger facility.
3
. A mini-TRS stereo audio input is
1. For DigitalMedia CAT wiring, use DM-CBL DigitalMedia Cable. Up to two DM Repeaters (Model
DM-DR, sold separately) may be required. Refer to the latest version of the Crestron DigitalMedia
Design Guide (Doc. 4789) for complete wiring guidelines.
2. HDMI requires an appropriate adapter or interface cable to accommodate a DVI or DisplayPort
Multimode signal. CBL-HD-DVI and CBL-DP-HD interface cables available separately.
3. The RGB input can accept component, composite, and S-video signals via direct interface to
Crestron MPS Series products, or through an appropriate adapter (not included). Input sync detection
is not provided for composite or S-video signal types through the RGB connection.
When connected to a DM-MD series switcher, the DM-TX-200-2G and
DM-TX-400-3G function as keyboard/mouse extenders, allowing a USB HID
(Human Interface Device) compliant keyboard and/or mouse at the podium or
conference table to control a computer or other host device located at the central
equipment rack.
EDID Format Management
The DM-TX-200-2G and DM-TX-400-3G allow for management of the EDID
(Extended Display Identification Data) information that passes between the display
devices and input sources in the system. Using Crestron Toolbox™ software, the
format and resolution capabilities of each device can be assessed and managed
through the DM-TX-200-2G or DM-TX-400-3G, ensuring reliable operation by
instructing sources to output only the resolutions and formats that can be handled by
the displays and system wiring.
CEC Embedded Device Control
The primary objective of every Crestron system is to enable precisely the control
desired for a seamless user experience. DigitalMedia provides an alternative to
conventional IR and RS-232 device control by harnessing the CEC (Consumer
Electronics Control) signal embedded in HDMI. Through its connection to the
control system, the DM-TX-200-2G or DM-TX-400-3G provides a gateway for
controlling the connected source device right through the HDMI connection,
potentially eliminating the need for any dedicated control wires or IR probes.
Through proper CEC signal management, DigitalMedia allows you to take control of
each device in the system as you like.
Simple Wall Mount Design
The DM-TX-200-2G and DM-TX-400-3G are designed to be wall mounted using a
standard electrical box or plaster ring. The DM cable is terminated at the rear of the
transmitter using screw terminals. An array of indicators on the front of the
DM-TX-200-2G and DM-TX-400-3G provide for easy setup and troubleshooting,
verifying the status of connections and signal activity at a glance. Advanced
configuration is enabled through Crestron Toolbox software.
A Digital Upgrade for Legacy Systems
The DM-TX-200-2G and DM-TX-400-3G also afford perfect signal converters for
integrating DigitalMedia with analog-based systems like Crestron MPS,
QuickMedia®, and the CEN-RGBHV Series (all sold separately). A simple HD15
VGA cable connected between the output of an MPS system and the input of the
DM-TX-200-2G or DM-TX-400-3G allows every RGB, component, S-video, and
composite video input on the MPS to be converted to DigitalMedia*. Analog audio
is converted similarly through a simple unbalanced stereo audio cable. The
HDMI input may also be used to expand the input capabilities of the MPS system to
handle digital AV sources.
* The RGB input can accept component, composite, and S-video signals via direct interface to
Crestron MPS Series products, or through an appropriate adapter (not included). Input sync detection
is not provided for composite or S-video signal types through the RGB connection.
DM-TX-200-2G and DM-TX-400-3G Specifications (Continued)
SPECIFICATION DETAILS
Video
Input Resolutions (Continued)
HDMI & DVI, Interlaced
RGB
Component2
Composite and S-video2
Output Resolutions Matched to inputs
Analog-To-Digital Conversion 10-bit 165 MHz per each of 3 channels
720 x 480 @ 30 Hz (480i)
720 x 576 @ 25 Hz (576i)
1920 x 1080 @ 25 Hz (1080i25)
1920 x 1080 @ 30 Hz (1080i30)
plus any other resolution allowed by
HDMI up to 165 MHz pixel clock
640 x 480 @ 60 Hz
720 x 480 @ 60 Hz (480p)
720 x 576 @ 50 Hz (576p)
800 x 600 @ 60 Hz
848 x 480 @ 60 Hz
1024 x 768 @ 60 Hz
1280 x 720 @ 50 Hz (720p50)
1280 x 720 @ 60 Hz (720p60)
1280 x 768 @ 60 Hz
1280 x 800 @ 60 Hz
1280 x 960 @ 60 Hz
1280 x 1024 @ 60 Hz
1360 x 768 @ 60 Hz
1366 x 768 @ 60 Hz
1400 x 1050 @ 60 Hz
1440 x 900 @ 60 Hz
1600 x 1200 @ 60 Hz
1680 x 1050 @ 60 Hz
1920 x 1080 @ 24 Hz (1080p24)
1920 x 1080 @ 50 Hz (1080p50)
1920 x 1080 @ 60 Hz (1080p60)
1920 x 1200 @ 60 Hz
2048 x 1080 @ 24 Hz
2048 x 1152 @ 60 Hz
2. The RGB input can accept component, composite, and S-video signals via direct interface to
Crestron MPS Series products, or through an appropriate adapter (not included). Input sync detection
is not provided for composite or S-video signal types through the RGB connection.
3. DM-TX-400-3G only.
NOTE: Crestron software and any files on the Web site are for authorized Crestron
dealers and Crestron Authorized Independent Programmers (CAIP) only. New users
may be required to register to obtain access to certain areas of the site (including the
FTP site).
Physical Description
This section provides information on the connections, controls and indicators
available on your DM-TX-200-2G and DM-TX-400-3G.