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DO GUIDE
Unbalanced Stereo
Line Level
Audio Input
Unbalanced Stereo
Line Level
Audio Input
To Any
RS-232
Device
To IR Device (e.g.,
Projector) or Devices
Without RS-232
Ground
Composite
Video
Input
RGB or
Component
Video Input
HDMI
®
Digital Video/
Audio Input
DisplayPort
Digital Video/
Audio Input
24 Vdc from
Power Pack
(Included)
10BASE-T/
100BASE-TX
Ethernet to Local
Network Device
To DM® Switcher,
Receiver, or Other
DM Device or to
HDBaseT® Device
VID PC
VIDEO IN
AUDIO IN
HDMI
DISPLAY PORT
L
G
COM
TXRXRS
CS
DM OUT
IR
24V
S G
G
0.75A
LAN
R
DM-T X- 4 01- C
DigitalMedia 8G+™ Transmitter 401
DO Mount the DM-TX-401-C
Mount the Crestron® DM-TX-401-C in the desired location (for example, in a stationary rack or
podium, on a shelf, or in a movable lectern or AV cart). If rack mounting is desired, use the
ST-RMK Rack Mount Kit (sold separately).
DO Make Connections to the DM-TX-401-C
Make connections to the front and rear of the DM-TX-401-C as appropriate for the application
(refer to illustrations and ).
Front Panel Connection
USB HID
DM
PWR
RESET
LINK
Mouse/Keyboard Input
Rear Panel Connections
INPUT
DISPLAY
VIDEOAUTOSETUP
SELECT
HDMI
PC
PORT
DM-TX-401-C
DO Check the Box
QTY PRODUCT PART NUM.
1 Power Pack, 24 Vdc 0.75 A, 100-240 Vac 2037209
1 Interface Connector, Plug, 2-Pin 20 03574
1 Interface Connector, Plug, 5-Pin 2003577
Not Included: Cables
NOTE: The DM OUT port is a PoDM (Power over DM) or PoH (Power over HDBaseT) PD
(Powered Device) port. To receive PoDM or PoH, the DM-TX-401-C requires a connection to
a DigitalMedia™ switcher or other equipment that has a PoDM or PoH PSE (Power Sourcing
Equipment) port. Any wiring that is connected to a PoDM or PoH PSE port is for intra-building
use only and should not be connected to a line that runs outside of the building in which the
PSE is located.
DO Set the IP Address
The con guration of the DM-TX-401-C within the DigitalMedia 8G+™ system determines how
the IP address of the DM-TX-401-C is set:
• If the DM-TX-401-C connects to a DigitalMedia switcher, the DM-TX-401-C is con gured by
the switcher automatically.
• If the DM-TX-401-C connects to a DigitalMedia 8G+ receiver, the DM-TX-401-C uses its
own con guration settings. By default, DHCP (Dynamic Host Con guration Protocol) is
enabled. If desired, you can assign the default IP address to the DM-TX-401-C by holding
down the SETUP button while the unit boots up. The default IP address 192.168.1.234
overwrites the current setting. To manually set a different IP address, use Crestron
Toolbox™.
DO Select Inputs
By default, automatic switching of inputs is enabled. Automatic switching causes inputs to
switch according to the following priorities:
• Video switching priority: DisplayPort, HDMI, RGB, composite
• Audio switching priority: DisplayPort, HDMI, 1/8” analog, dual RCA analog
The AUTO LED on the front panel of the DM-TX-401-C lights to indicate that automatic switching
is enabled.
To manually select the desired audio/video input, press the SELECT button on the front panel of
the DM-T X-401-C until the corresponding LED lights (refer to illustration ).
Input Selection LEDs and Button
USB HID
PWR
RESET
LINK
DM
INPUT
DISPLAY
HDMI
PORT
SELECT
DM-TX-401-C
VIDEOAUTOSETUP
PC
Page 2
Pressing the SELECT button in succession changes input selection from automatic switching
(default setting) to the various available selections in the following order:
• DisplayPort audio and video: The DISPLAY PORT LED lights.
• HDMI audio and video: The HDMI LED lights.
• VGA video with 1/8” audio: The PC LED lights.
• Composite video with dual RCA audio: The VIDEO LED lights.
• None: No input is selected.
After cycling through the above selections, pressing the SELECT button returns to automatic
switching.
As of the date of manuf acture, the product has be en teste d and found to compl y with spe cications for C E marking.
This product is L isted to applicable UL Sta ndards and requiremen ts by Underwriters Laboratories Inc.
Federal Communications Commission (FCC) Compliance Statement
This device comp lies with part 15 of the FCC Rules . Opera tion is subject to the following two con ditions:
(1) This devic e may not cause harmful interfere nce, and (2) this device must ac cept any i nterference r eceive d, including inte rfere nce
that may cause undesired operation.
Caution: Chang es or modications not exp ressly approve d by the manufacturer resp onsibl e for comp liance c ould void the user’s
author ity to operate the e quipme nt.
Note: This equipment ha s 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 ar e designed to provide reas onable p rotection against harmful inte rfere nce in a residential inst allation.
This equipment generates, uses and can r adiate radio frequency e nergy and, if not in stalle d and use d in accordance w ith the
instructions, may cause harmf ul inter ference to radio communications. However, the re is no gua rantee that interfere nce will not
occur in a particular in stalla tion.
DO GUIDE
DO Learn More
Visit the website for additional information and the latest rmware updates.
Crestron Electronics
15 Volvo Drive, Rockleigh, NJ 07647
888.CRESTRON | www.crestron.com
If this equipment does cause harm ful interfere nce to radio or television reception, which can be determined by turning t he
equipment off and on, the u ser is encourag ed to try to correct the inte rfere nce by one o r more of the following measures:
• Reorient or relocate the receiving antenna
• Increase the separation between the equipm ent and re ceiver
• Connect the e quipment into an outlet on a circuit di ffere nt from th at to which the receiver is connecte d
• Consult the dealer or a n experienced radio/ TV technician for help
Industry Canada (IC) Compliance Statement
CAN ICES-3(B)/NMB-3(B)
The speci c patents that c over Crestron pro ducts are listed a t patents.crestron.com. Product w arranty can be f ound at www.crestron.com/warranty.
Crestr on, the Crestron lo go, Crestr on Toolbox, Di gitalMed ia, Digita lMedia 8G+, and DM are ei ther trademarks or r egistered t rademarks of Crest ron Electronics , Inc. in the United St ates and/
or other cou ntries. HDBas eT and the HDBaseT Allia nce logo are either tr ademarks or regist ered trademarks o f the HDBaseT Allian ce in the United Sta tes and/or other cou ntries. HDMI an d the
HDMI log o are either tradema rks or registered t rademarks of HDM I Licensing LLC in t he United State s and/or other coun tries. Other tra demarks, registe red trademarks, a nd trade names may
be used in thi s document to refer to ei ther the entitie s claiming the marks and n ames or their produc ts. Crestron di sclaims any proprie tary interest i n the marks and names o f others. Crestr on
is not resp onsible for errors i n typography or ph otography.
This docum ent was written by t he Technical Publicat ions departmen t at Crestron.
©2015 Crestron Electronics, Inc.
DOC. 7748 A (204 3104) 01.15
Specic ations subject to c hange without not ice.
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