Crestron 4K DigitalMedia 8G+ DM-RX-4K-202-C Owner's manual

DM-TX-4K-202-C and DM-TX-4K-302-C
4K DigitalMedia 8G+® Transmitters
Supplemental Guide
Crestron Electronics, Inc.

Original Instructions
The U.S. English version of this document is the original instructions.
All other languages are a translation of the original instructions.
Crestron product development software is licensed to Crestron dealers and Crestron Service Providers (CSPs)
under a limited nonexclusive, nontransferable Software Development Tools License Agreement. Crestron
product operating system software is licensed to Crestron dealers, CSPs, and end-users under a separate End-
User License Agreement. Both of these Agreements can be found on the Crestron website at
www.crestron.com/legal/software_license_agreement.
The product warranty can be found at www.crestron.com/warranty.
The specific patents that cover Crestron products are listed at www.crestron.com/legal/patents.
Certain Crestron products contain open source software. For specific information, visit
www.crestron.com/opensource.
Crestron, the Crestron logo, Crestron Connect It, Crestron Toolbox, DigitalMedia, DigitalMedia 8G+, DM, and
DM 8G+ are either trademarks or registered trademarks of Crestron Electronics, Inc., in the United States
and/or other countries. HDBaseT and the HDBaseT Alliance logo are either trademarks or registered
trademarks of the HDBaseT Alliance in the United States and/or other countries. HDMI and the HDMI logo are
either trademarks or registered trademarks of HDMI Licensing LLC in the United States and/or other countries.
DisplayPort is either a trademark or registered trademark of Video Electronics Standards Association in the
United States and/or other countries. Other trademarks, registered trademarks, and trade names may be
used in this document to refer to either the entities claiming the marks and names or their products. Crestron
disclaims any proprietary interest in the marks and names of others. Crestron is not responsible for errors in
typography or photography.
©2020 Crestron Electronics, Inc.

Contents
Introduction 1
Physical Description 2
Side View, Left 2
Side View, Right 4
Configuration 6
EDID Configuration 6
HDBaseT Configuration 8
USB HID control configuration 8
HDCP 2.2 Compliance 10
Troubleshooting 11
Appendix: Pin Assignments 13
Supplemental Guide — Doc. 7932B Contents • i

ii • Contents Supplemental Guide — Doc. 7932B

Supplemental Guide — Doc. 7932B DM-TX-4K-202-C and DM-TX-4K-302-C • 1
Introduction
The Crestron® DM-TX-4K-202-C and DM-TX-4K-302-C are DigitalMedia 8G+®
transmitters and switchers that provide support for the transport of 4K and Ultra HD
video signals. The DM-TX-4KZ-202-CDM-TX-4K-202-C and DM-TX-4K-302-C provide two
HDMI® inputs. In addition to the HDMI inputs, the DM-TX-4K-302-C provides one VGA
input and one analog audio input. The DM-TX-4K-202-C and DM-TX-4K-302-C also
function as control modules, providing RS-232 and IR control ports. An Ethernet port and a
USB HID port are also provided.
This guide provides information about the following:
lPhysical description of the side views of the DM-TX-4K-202-C and DM-TX-4K-302-C
lConfiguration of some of the capabilities of the DM-TX-4K-202-C and
DM-TX-4K-302-C, for example, automatic audio/video signal format management
via EDID
lHDCP 2.2. compliance
lTroubleshooting
lPin assignments
For installation information, refer to the DM-TX-4K-202-C and DM-TX-4K-302-C Quick
Start Guide (Doc. 7743) at www.crestron.com/manuals.

2 • DM-TX-4K-202-C and DM-TX-4K-302-C Supplemental Guide — Doc. 7932B
Physical Description
The following sections provide information about the connectors, controls, and indicators
that are available on the left and right sides of the DM-TX-4K-202-C and
DM-TX-4K-302-C.
Side View, Left
The following illustration shows the left side of the DM-TX-4K-302-C.
NOTE: The left side of the DM-TX-4K-202-C provides the same connectors and
indicators as the DM-TX-4K-302-C with the exception of the VGA IN connector and
indicator and the AUDIO IN connector.
Side View, Left (DM-TX-4K-302-C Shown)
ÊVGA IN LED: (DM-TX-4K-302-C only) Green LED, indicates video signal presence at
the VGA input
ËVGA IN: (DM-TX-4K-302-C only) HD15 female, analog VGA/RGB/video input;
Signal Types: VGA, RGB, component, S-Video, or composite;
Formats: RGBHV, RGBS, RGsB, YPbPr, Y/C, NTSC, PAL;
Input Levels: 0.5 to 1.5 Vp-p with built-in DC restoration;
Input Impedance: 75 Ohms;
Sync Input Type: Autodetect RGBHV, RGBS, RGsB, YPbPr, Y/C, composite;
Sync Input Level: 3 to 5 Vp-p;
Sync Input Impedance: 510 Ohms
NOTE: The VGA IN port requires an appropriate passive adapter or breakout
cable to accommodate a component, S-video, or composite video signal.

Supplemental Guide — Doc. 7932B DM-TX-4K-202-C and DM-TX-4K-302-C • 3
ÌAUDIO IN: (DM-TX-4K-302-C) 3.5 mm TRS mini phone jack;
Unbalanced stereo line-level audio input;
Input Level: 2 Vrms maximum;
Input Impedance: 10k Ohm
ÍHDMI IN 1–2 LEDs: Green LEDs, each indicates HDMI signal presence at the
corresponding HDMI input
ÎHDMI IN 1–2: 19-pin Type A HDMI female;
HDMI digital video/audio inputs;
(DVI and Dual-Mode DisplayPort™ signal compatible)
NOTE: The HDMI IN ports require an appropriate adapter or interface cable to
accommodate a DVI or Dual-Mode DisplayPort signal. The CBL-HD-DVI interface
cable is available separately.
ÏDM OUT: 8-pin R-J45 female, shielded;
DM 8G+® output, HDBaseT® standard compliant;
PoDM+ PD (Powered Device) port (IEEE 802.3at Type 2 Class 4 [25.5 W] compliant
and HDBaseT PoE+ compatible) on DM-TX-4K-302-C;
PoDM PD port (IEEE 802.3at Type 1 Class 3 [12.95 W] compliant and HDBaseT PoE
compatible) on DM-TX-4K-202-C;
Connects to the DM 8G+ input of a DM® switcher, receiver, or other DM device, or to
an HDBaseT device via CAT5e, Crestron DM-CBL-8G, or Crestron DM-CBL-ULTRA
cable;
Green LED indicates DM link status;
Solid amber LED indicates HDCP video;
Blinking amber LED indicates non-HDCP video
NOTES:
lReceiving PoDM+ or PoDM requires connection to a switcher or other
equipment that has a corresponding PoDM+ or PoDM PSE (Power
Sourcing Equipment) port. Receiving HDBaseT PoE+ or HDBaseT PoE
requires connection to a switcher or other equipment that has a
corresponding HDBaseT PoE+ or HDBaseT PoE PSE port. Any wiring that is
connected to a PoDM+, PoDM, HDBaseT PoE+, or HDBaseT PoE PSE port
is for intrabuilding use only and should not be connected to a line that runs
outside of the building in which the PSE is located.
lIf the DM-TX-4K-302-C does not connect to the optional power pack, PW
2407WU (sold separately), the DM-TX-4K-302-C requires PoDM+ or
HDBaseT PoE+ to power a USB device connected to the USB HID port.
Standard PoDM or HDBaseT PoE can be used to power the
DM-TX-4K-302-C if no USB device is connected to the USB HID port. Unlike
for the DM-TX-4K-302-C, standard PoDM or HDBaseT PoE can be used to
power a USB device connected to the USB HID port of the
DM-TX-4K-202-C.

4 • DM-TX-4K-202-C and DM-TX-4K-302-C Supplemental Guide — Doc. 7932B
ÐPower LED: Green LED, indicates operating power supplied via PoDM+, PoDM,
HDBaseT PoE+, or HDBaseT PoE for the DM-TX-4K-302-C; PoDM or HDBaseT PoE
for the DM-TX-4K-202-C; or optional PW-2407WU power pack
Ñ24 VDC 0.75 A: 2.1 x 5.5 mm DC power connector;
24 VDC power input;
Optional PW-2407WU power pack (sold separately)
ÒGround ( ):6-32 screw, chassis ground lug
For pin assignment information, refer to the Appendix: Pin Assignments (on page13).
Side View, Right
The following illustration shows the right side of the DM-TX-4K-302-C.
NOTE: The right side of the DM-TX-4K-202-C provides the same connectors, controls,
and indicators as the right side of the DM-TX-4K-302-C.
Side View, Right (DM-TX-4K-302-C)
ÊUSB HID: USB Type A female;
USB 2.0 host port for connection of a mouse, keyboard, or other USB HID compliant
device (USB signal extension and routing), or for connection of a Crestron TT-100
series device (Crestron Connect It™ Cable Caddy. sold separately)
ËCOMPUTER: USB Type B female;
USB 2.0 device port for computer console (setup) or for connection to a computer or
other USB HID compliant host (USB signal extension and routing)

Supplemental Guide — Doc. 7932B DM-TX-4K-202-C and DM-TX-4K-302-C • 5
ÌLAN: 8-pin RJ-45 female;
10BASE-T/100BASE-TX Ethernet port;
Green LED indicates Ethernet link status;
Amber LED indicates Ethernet activity
NOTE: Do not connect the LAN port to an Ethernet switch if the DM OUT port is
connected to a DigitalMedia™ switcher.
ÍHDMI OUT: 19-pin Type A HDMI female;
HDMI digital video/audio output (DVI compatible)
NOTE: The HDMI OUT port requires an appropriate adapter or interface cable to
accommodate a DVI signal. The CBL-HD-DVI interface cable is available
separately.
ÎHDMI OUT LED: Green LED, indicates HDMI signal presence at the HDMI output
ÏCOM: 5-pin 3.5 mm detachable terminal block;
Bidirectional RS-232 port;
Up to 115.2k baud, hardware and software handshaking support
ÐIR: 2-pin 3.5 mm detachable terminal block;
IR/serial port;
IR output up to 1.1 MHz;
1-way serial TTL/RS-232 (0-5 V) up to 19200 baud
ÑSETUP: (Applicable only to a configuration in which a DigitalMedia switcher is not
used)
Red LED and recessed push button for Ethernet setup of the default static IP
address of the device
NOTE: The default static IP address of the DM-TX-4K-302-C and the
DM-TX-4K-202-C is 192.168.1.205.
ÒRESET: Recessed push button for reboot of the device
For pin assignment information, refer to the Appendix: Pin Assignments (on page13).

6 • DM-TX-4K-202-C and DM-TX-4K-302-C Supplemental Guide — Doc. 7932B
Configuration
This section provides information about the following:
lEDID configuration
lHDBaseT configuration
lUSB HID control configuration
EDID Configuration
EDID (Extended Display Identification Data) configuration allows management of the
EDID that is to be sent to the upstream device connected to an HDMI input of the DM-TX-
4K-202-C or to an HDMI or VGA input of the DM-TX-4K-302-C. By default, the EDID is set
to DM default 4k 60Hz 2 ch for an HDMI input or to 01 DM default for a VGA input. If a
different EDID is desired, use DMTool to configure the EDID. An overview of the steps
necessary to configure the EDID is as follows:
NOTE: For detailed information, refer to the Crestron Toolbox™ software help file.
1. Connect to the DM-TX-4K-202-C or DM-TX-4K-302-C.
2. Open the Setup window of the HDMI input for the DM-TX-4K-202-C or the Setup
window of the HDMI or VGA input for the DM-TX-4K-302-C.
3. In the EDID Configuration dialog box, configure the EDID by doing any of the
following:
lCustomize the current EDID.
lLoad an EDID template and modify it.
lCreate a new EDID file.
lLoad the existing EDID and modify it.
lObtain an EDID from the output and then save or customize it.
lApply an EDID that is saved on a computer.

Supplemental Guide — Doc. 7932B DM-TX-4K-202-C and DM-TX-4K-302-C • 7
EDID Configuration Dialog Box for HDMI Input (DM-TX-4K-302-C Dialog Box Shown)
EDID Configuration Dialog Box for VGA Input (DM-TX-4K-302-C Only)

8 • DM-TX-4K-202-C and DM-TX-4K-302-C Supplemental Guide — Doc. 7932B
HDBaseT Configuration
The DM-TX-4K-202-C or DM-TX-4K-302-C are HDBaseT certified, enabling direct
connection to other HDBaseT certified equipment. Via the DM 8G+ output of the
DM-TX-4K-202-C or DM-TX-4K-302-C, the transmitter can be connected directly to a
third-party HDBaseT compliant device without requiring a DigitalMedia receiver.
SIMPL Windows allows an HDBaseT receiver device to be added to the DM-TX-4K-202-C
or DM-TX-4K-302-C. The HDBaseT receiver device adds a COM port to the
DM-TX-4K-202-C or DM-TX-4K-302-C and enables two-way serial communication.
To add a third-party HDBaseT receiver device to the DM-TX-4K-202-C or
DM-TX-4K-302-C, use SIMPL Windows. In the Configure View of SIMPL Windows, add a
third-party HDBaseT receiver device to slot 9 for the HDBaseT receiver slot of the
DM-TX-4K-202-C or DM-TX-4K-302-C.
NOTE: For detailed information, refer to the SIMPL Windows help file.
HDBaseT Receiver Slot (Slot 9)
When the third-party HDBaseT receiver device is added to slot 9, the HDBaseT Receiver
symbol adds a COM port to the device and enables two-way serial communication.
Addition of HDBaseT Receiver to Slot 9 and COM Port in Slot 1
USB HID control configuration
A keyboard, mouse, or other USB HID compliant device can be connected locally to the USB
HID port of the DM-TX-4K-202-C and DM-TX-4K-302-C. The USB HID compliant device
can be used to control a remote computer or other host device that is connected to the

Supplemental Guide — Doc. 7932B DM-TX-4K-202-C and DM-TX-4K-302-C • 9
USB HID compliant port of a DigitalMedia device, that is, a DigitalMedia transmitter or a
DMC input card of a DigitalMedia switcher.
USB signal routing is handled by the DigitalMedia system. SIMPL Windows allows USB
signal routing from the device connected to the USB HID port of the DM-TX-4K-202-C or
DM-TX-4K-302-C to the host device that is connected to the USB HID compliant port of a
DigitalMedia device. To configure USB routing, set the <USB_HID_Control> serial input join
to the IP address of the DigitalMedia device to which USB signals are to be routed. The IP
address must be in hexadecimal format. For detailed information about the <USB_HID_
Control> serial input join and about setting the IP address, refer to the SIMPL Windows
help file.

10 • DM-TX-4K-202-C and DM-TX-4K-302-C Supplemental Guide — Doc. 7932B
HDCP 2.2 Compliance
The DM-TX-4K-202-C and DM-TX-4K-302-C are compliant with HDCP 2.2. HDCP 2.2,
commonly referred to as HDCP 2, is the next generation of HDCP (High-Definition Content
Protection). Note the following about HDCP 2:
lCompared to HDCP 1, HDCP 2 brings a higher level of cryptographic protection to
HDMI technology.
lHDCP 2 is not HDMI 2. It is possible to have a system built on HDCP 1 and HDMI 2,
HDCP 2 and HDMI 1, or HDCP 2 and HDMI 2.
lAlthough not all 4K content requires HDCP 2, most 4K consumer video content
requires HDCP 2.
lAny product that supports HDCP 2 also supports HDCP 1.
lHDCP is needed only when the source demands HDCP. If the source demands HDCP
2, then every device in the signal path must support HDCP 2.
lThere are no issues related to HDCP 2 and cabling—all cables are compatible with
HDCP 2.

Supplemental Guide — Doc. 7932B DM-TX-4K-202-C and DM-TX-4K-302-C • 11
Troubleshooting
The following table provides troubleshooting information. If further assistance is required,
contact a Crestron customer service representative.
DM-TX-4K-202-C or DM-TX-4K-302-C Troubleshooting
Problem Possible Cause(s) Corrective Action
Video is not
displayed, but the
audio may be
heard.
The HDCP settings of one or more
DigitalMedia devices in the signal path do
not support the HDCP level of the source.
Ensure that the HDCP
settings of all DigitalMedia
devices in the signal path
support the HDCP level of the
source.
The display does not support the HDCP
level of the source.
Ensure that the display
supports the HDCP level of
the source.
Video is not
displayed.
The desired input may not be selected in
DMTool.
Ensure that Auto mode is
selected or that the desired
input is selected in DMTool.
The HDMI video is
intermittent.
The HDMI cable connections are faulty. Verify that each end of the
cable is connected properly.
The LAN
connection is
unresponsive.
The transmitter and another
DigitalMedia endpoint are both
connected to a DigitalMedia switcher.
The LAN port of the other endpoint is
also connected to an Ethernet switch.
When a DigitalMedia
endpoint is connected to a
DigitalMedia switcher, the
LAN port of the endpoint
cannot be connected to an
Ethernet switch. Disconnect
the LAN port from the
Ethernet switch.
The transmitter
cannot establish a
link to the device
that is connected
to the DM OUT
port. The DM link
status LED is off.
The cable connections are faulty. Verify that each end of the
cable is properly connected. If
necessary, check the cable
terminations.
(DM-TX-4K-302-C
only) Analog audio
is not being heard
from the device
connected to the
AUDIO IN port.
The EDID is not set to 2-channel audio. Set the EDID to 2-channel
audio.
The analog audio input is not
programmed properly in SIMPL Windows.
Ensure that the analog audio
input is programmed properly
in SIMPL Windows.
The volume is not set properly in DMTool
or in the SIMPL program for the
transmitter
Verify that the volume is
properly set for the
transmitter.

12 • DM-TX-4K-202-C and DM-TX-4K-302-C Supplemental Guide — Doc. 7932B
Problem Possible Cause(s) Corrective Action
(DM-TX-4K-302-C
only) Component
or composite video
may not be
displayed, may be
intermittent, or
may be missing
color.
The VGA breakout cable connections are
faulty.
Ensure that the VGA
breakout cable connections
are correct.
The transmitter
does not remain
powered on.
When the transmitter is not
powered by the optional
PW-2407WU power pack (sold
separately), the DM OUT port is
not connected to a PoDM+,
PoDM, HDBaseT PoE+, or
HDBaseT PoE power sourcing
equipment (PSE) port that is
required to power the
transmitter.
Ensure that the DM OUT port
is connected to an
appropriate PSE port when
not being powered by the
optional PW-2407WU power
pack.
The SIMPL
Windows program
is not operational.
In a configuration in which a DigitalMedia
switcher is not used, the IP table is not
set properly.
Verify that the IP table is set
properly in System Info in the
Crestron Toolbox software.
If the transmitter connects to a
DigitalMedia switcher, the transmitter
does not connect to the correct DM input
port of the switcher.
Ensure that the transmitter
connects to the correct DM
input port of the switcher.
The video flickers
or drops when the
transmitter is
touched or when
metal in the
vicinity of the
device is touched.
The transmitter is not properly grounded. Ensure that the transmitter is
properly grounded.
NOTE: If, for any reason, the factory default settings of the DM-TX-4K-202-C or
DM-TX-4K-302-C must be restored, do the following: From the Tools menu in the Crestron
Toolbox software, select Text Console and enter the following command:
restore y

Supplemental Guide — Doc. 7932B DM-TX-4K-202-C and DM-TX-4K-302-C • 13
Appendix: Pin Assignments
This section provides information about pin assignments and wiring for the following
connectors:
lVGA IN (DM-TX-4K-302-C only)
lDM OUT
lLAN
VGA IN Pin Assignments
PinNumber RGB YPbPR S-Video Composite
1 R Pr C
2 G Y Y
3 B Pb COMP
5 GND GND GND GND
6 RED_
GND
PR_
GND
C_
GND
7 GRN_
GND
Y_
GND
Y_
GND
8 BLU_
GND
Pb_
GND
13 H
14 V
NOTE: For best video performance, ground connections should be kept separate. Do
not connect ground wires to the connector shell. The connector shell is reserved for the
cable shield.

14 • DM-TX-4K-202-C and DM-TX-4K-302-C Supplemental Guide — Doc. 7932B
DM OUT Pin Assignments and Wiring
Pin Number Wire Color
1 Orange/White
2 Orange
3 Green/White
4 Blue
5 Blue/White
6 Green
7 Brown/White
8 Brown
LAN Pin Assignments
Pin Number Signal
1 TX+
2 TX–
3 RX+
4 N/C
5 N/C
6 RX–
7 N/C
8 N/C

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Supplemental Guide — Doc. 7932B DM-TX-4K-202-C and DM-TX-4K-302-C • 15

Crestron Electronics, Inc.
15 Volvo Drive, Rockleigh, NJ 07647
Tel: 888.CRESTRON
Fax: [phone]
www.crestron.com
Supplemental Guide — Doc. 7932B
2047277
05/04/20
Specifications subject to
change without notice.