Crestron DM-TX-4K-302-C 4K DigitalMedia 8G+ Transmitter - NEW

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The DM‑TX‑4K‑302‑C provides a versatile interface for computers and high-definition AV sources as part of a complete Crestron® ™ system. It functions as a DM 8G+® transmitter and switcher with HDMI®, VGA, and analog audio inputs and as a control module, providing RS-232 and IR control ports, plus Ethernet and USB HID ports for a total connectivity solution.

Its low-profile, surface-mountable design makes the DM‑TX‑4K‑302‑C ideal for installation beneath a conference table, inside a lectern or equipment rack, or at virtually any other location in a boardroom, classroom, auditorium, or residence. It connects to the head end or display location using a single CAT type twisted pair cable. In addition to DM 8G+, it is also compatible with HDBaseT® standard, which allows it to be connected directly to the input of an HDBaseT certified display device.

Maximum Cable LengthsResolutionDM-CBL-ULTRA DM® Ultra CableDM-CBL-8G DM 8G® CableCAT5e Cable (or better) [1]1080p60 Full HD330 ft (100 m)330 ft (100 m)330 ft (100 m)1920x1200 WUXGA1600x1200 UXGA2048x1080 DCI 2K2560x1440 WQHD230 ft (70 m)165 ft (50 m)2560x1600 WQXGA3840x2160 4K UHD4096x2160 DCI 4KMaximum ResolutionsInput TypeScan TypeResolutionFrame RateColor SamplingColor DepthHDMIProgressive4096x2160 DCI 4K
3840x2160 4K UHD24 Hz4:4:430 bit30 Hz4:4:424 bit30 Hz4:2:236 bit60 Hz4:2:024 bit2560x1600 WQXGA60 Hz4:4:436 bit1920x1080 HD 1080p60 Hz4:4:436 bitInterlaced1920x1080 HD 1080i30 Hz4:4:436 bitVGA/RGBProgressive1600x1200 UXGA60 Hzn/an/a1920x1200 WUXGA60 Hzn/an/aComponent [6]Progressive1920x1080 HD 1080p60 Hzn/an/aInterlaced1920x1080 HD 1080i30 Hzn/an/aComposite
or S-Video [6]Interlaced480i NTSC or 576i PAL60 Hzn/an/a

NOTE: Common resolutions are shown. Other custom resolutions are supported at pixel clock rates up to 300 MHz for digital inputs, or 165 MHz for analog inputs.

VideoSwitcher3x1 manual or auto-switching, Crestron QuickSwitch HD technologyInput Signal TypesHDMI w/Deep Color, 3D, & 4K (DVI & Dual-Mode DisplayPort™ compatible 7); VGA/RGB (RGBHV, RGBS, RGsB); component (YPbPr); S-Video (Y/C); composite (NTSC, PAL) 6Output Signal TypesDM 8G+ & HDBaseT w/HDR10, Deep Color, 3D, & 4K; HDMI w/Deep Color, 3D, & 4K (DVI compatible 7)AudioSwitcher3x1 with auto-detecting digital/analog inputs and analog audio breakawayInput Signal TypesHDMI (Dual-Mode DisplayPort compatible 7), analog stereoOutput Signal TypesDM 8G+ & HDBaseT, HDMIFormatsDolby Digital®, Dolby Digital EX, Dolby Digital Plus, Dolby® TrueHD, Dolby Atmos®, DTS®, DTS-ES, DTS 96/24, DTS HD High Res, DTS HD Master Audio™,LPCM up to 8 channelsAnalog FormatsStereo 2-channelAnalog-To-Digital Conversion24-bit 48 kHzAnalog Input Level Compensation±10.0 dBAnalog PerformanceFrequency Response: 20 Hz to 20 kHz ±0.5 dB
S/N Ratio: >90 dB, 20 Hz to 20 kHz A-weighted
THD+N: <0.05% @ 1 kHz
Stereo Separation: >90 dBCommunicationsEthernet10/100 Mbps, auto-switching, auto-negotiating, auto-discovery, full/half duplex, DHCPUSBSupports signal extension of USB HID class devices, supports a  series cable caddy 8 supports computer console (for setup)RS-2322-way device control and monitoring up to 115.2k baud with hardware and software handshaking (via control system)IR/Serial1-way device control via infrared up to 1.1 MHz or serial TTL/RS-232 (0-5 V) up to 19.2k baud (via control system)DigitalMediaDM 8G+, HDCP 2.2, EDID, CEC, PoDM + 4, EthernetHDBaseTHDCP 2.2, EDID, RS-232, PoE+ 4, EthernetHDMIHDCP 2.2, EDID, CEC

NOTE: Supports management of HDCP and EDID; supports management of CEC between the connected HDMI devices and a control system.

  • ConnectorsVGA IN(1) HD15, female;
  • Analog VGA/RGB/video input;
  • Signal Types: VGA, RGB, component, S-Video, or composite 6;
  • 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 OhmsAUDIO IN(1) 3.5 mm TRS mini phone jack;
  • Unbalanced stereo line-level audio input;
  • Input Level: 2 Vrms maximum;
  • Input Impedance: 10k OhmsHDMI IN 1 – 2(2) 19-pin HDMI Type A, female;
  • HDMI digital video/audio inputs;
  • (DVI & Dual-Mode DisplayPort compatible 7)DM OUT(1) 8-pin shielded RJ-45, female;
  • DM 8G+ output, HDBaseT compliant;
  • PoDM+ PD port (HDBaseT PoE+ compatible) 2,3,4;
  • Connects to the DM 8G+ input of a DM switcher, receiver, or other DM device, or to a HDBaseT device, via CAT5e or Crestron  cable, or Crestron  cable 124VDC 0.75A(1) 2.1 x 5.5 mm DC power connector;
  • 24 VDC power input;
  • , optional power pack (sold separately)Ground(1) 6-32 screw;
  • Chassis ground lugUSB HID(1) USB Type A, female;
  • SB 2.0 host port for connection of a mouse/keyboard or other USB HID-compliant device (USB signal extension & routing), or for connection of a Crestron  series device (Crestron Connect It) 4,8COMPUTER(1) 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 & routing)LAN(1) 8-pin RJ-45, female;
  • 10Base-T/100Base-TX Ethernet portHDMI OUT(1) 19-pin HDMI Type A, female;
  • HDMI digital video/audio output (DVI compatible 7)COM(1) 5-pin 3.5 mm detachable terminal block;
  • Bidirectional RS-232 port;
  • Up to 115.2k baud, hardware and software handshaking supportIR(1) 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 baudControls & IndicatorsVGA IN(1) Green LED, indicates video signal presence at the VGA inputHDMI IN 1 – 2(2) Green LEDs, each indicates HDMI signal presence at the corresponding HDMI inputDM OUT(2) LEDs, green LED indicates DM link status, amber LED indicates video and HDCP signal presence24 VDC(1) Green LED, indicates operating power supplied via PoDM+, HDBaseT PoE+, or the optional  power pack (sold separately)LAN(2) LEDs, green LED indicates Ethernet link status, amber LED indicates Ethernet activityHDMI OUT(1) Green LED, indicates HDMI signal presence at the HDMI outputSETUP(1) Red LED and (1) recessed pushbutton for Ethernet setupRESET(1) Recessed pushbutton for hardware resetPowerPower over DM (PoDM)IEEE 802.3at Type 2 Class 4 (25.5 W) compliant PoDM+ PD (Powered Device), capable of being powered by a PoDM+ PSE (Power Sourcing Equipment) 2
  • Note: May be powered by a standard PoDM PSE (Class 3) if no USB device is connected to the USB HID port. 4
  • Power over HDBaseTIEEE 802.3at Type 2 Class 4 (25.5 W) compliant HDBaseT PoE+ PD (Powered Device), capable of being powered by an HDBaseT PoE+ PSE (Power Sourcing Equipment) 3
  • Note: May be powered by a standard HDBaseT PoE PSE (Class 3) if no USB device is connected to the USB HID port 4

Power Supply / Adapter / PSU (optional)
Input: 100-240 VAC, 50/60 Hz

Output: 0.75 A @ 24 VDC
Model:  (sold separately)
Temperature: 32° to 104° F (0° to 40° C)
Humidity: 10% to 95% RH (non‑condensing)
Heat Dissipation: 34.4 BTU/hr.


  • Chassis Metal, black finish, with (2) integral mounting flanges, vented top, front, and bottom
  • Mounting Freestanding, surface mount, or attach to a single rack rail


Height: 11.02 in (280 mm)
Width: 5.35 in (136 mm)
Depth: 1.08 in (28 mm)
Weight: 1.48 lb (670 g)


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