WyreStorm NHD-400-TX-IW NetworkHD™ 400 Series In-Wall 4K AV over IP JPEG 2000 Encoder


The NHD-400-TX-IW streaming encoder offers stunning 4K HDR video, multichannel audio support and 4K/2K scaling to seamlessly handle mixed resolution HDMI or VGA sources for matrix and video wall functionality. Featuring incredibly low latency, the 400 Series is the ideal AV over IP solution for systems where high quality and low delay are key requirements, making it perfect for demanding commercial applications.

The NHD-400TX-IW JPEG 2000 encoder is intended for use with 400 Series JPEG 2000 decoders (sold separately) to provide a complete end-to-end video distribution system. When used in conjunction with the NHD-000-CTL system controller complete control integration is simple.




Delivering visually lossless 4K UHD content with HDR and HDCP 2.2 support the 400 Series ensures compatibility with the latest UHD video sources, while a built-in scaler at the decoder ensures hassle-free mixing of the latest 4K displays and 1080p screens within an installation.


JPEG 2000 encoding ensures distribution integrity and video latency down to a single frame, making the 400 Series ideal for live environments, such as seminars and conferences, where presenting must be in sync with a video or audio system using a video wall.


Dynamic video processing seamlessly converts and matches source video content from each decoder to connected displays, removing video resolution and timing incompatibilities that might otherwise exist for reliable and easily manageable multi-display systems.


The 400 Series boasts discrete audio stream routing and control signals routing, ensuring true signal breakaway can maximize system flexibility. Source or display control signals can also be generated at the 400 Series device, removing the requirement for external equipment.

  • Stunning visually lossless 4K UHD HDMI video with HDR over 1GbE/IP networks
  • Ultra-low end-to-end latency – only a single video frame (16ms at 60fps)
  • Auto-switching inputs between HDMI and VGA + Audio
  • Multi-channel audio including DTS:X & Dolby Atmos™ supported over HDMI
  • Image scaling with 400 Series decoders – use a mix of 4K & 1080p displays throughout an installation
  • Easy network set-up using standard Layer 2 or Layer 3 managed switches
  • Hugely scalable I/O, utilizing multicast technology
  • Live video unicast preview streams for use with NetworkHD Touch™ or a custom control UI
  • Powerful audio/control matrix functionality – route audio / control separately from video to any decoder
  • CEC One-Touch Play & Standby, IR or RS-232 control of connected devices using 400 Series decoder
  • 400 Series supports up to 16x16 video walls with image scaling, bezel compensation and rotation
  • 400 Series supports custom “No Source” idle image upload for branded down time
  • Support all SD, HD and UHD video formats – including interlaced content
  • Breakaway, independent routing of all video, audio, IR, USB and RS-232 streams
  • Batch firmware update and batch settings functions offers a massive reduction on installation times
  • Custom EDID management with import/export
  • HDCP 2.2 Compliant
  • IEEE 802.3af PoE compliant PD
  • Includes optional DC power adapter and decorative bezel

Audio and Video

Inputs 1x HDMI In: 19-pin HDMI Type A
1x VGA In: 15-pin DE-15 Female
1x Audio In: 3.5mm (1/8in) TRS Stereo (VGA only)
Outputs 1x 8-pin RJ-45 (Transmission to RX)
Audio Formats 2ch LPCM | Multichannel: LPCM Up to 7.1 and Up to DTS:X and Dolby Atmos (HDMI Only)
Ouput Video Decoding JPEG 2000
Decoding Data Rate Max: 850Mb/s
End to End Latency (Max) 1 video frame latency (pass-through mode) 16ms @60fps | 2 video frames latency (scaler/VW mode) 33ms @60fps
Video Resolutions (Max) HDMI Input
1280x720p @50/59.94/60Hz 12bit 4:4:4/RGB
1920x1080i @29.97/30Hz 12bit 4:4:4/RGB
1920x1080p @23.98/24/25/29.97/30/50/59.94/60Hz 12bit 4:4:4/RGB
3840x2160p @23.98/24/25/29.97/30Hz 10/12bit 4:2:2/4:2:0 HDR10 HLG
3840x2160p @23.98/24/25/29.97/30Hz 8bit 4:4:4/RGB
3840x2160p @50/59.94/60Hz 8bit 4:2:0
720x480p @59.94/60Hz 12bit 4:4:4/RGB
720x576p @50Hz 12bit 4:4:4/RGB
60fps Progressive 4:4:4/RGB: 640x480 | 800x600 | 1024x768 | 1280x800 | 1280x960 | 1280x1024 | 1360x768 | 1366x768 | 1400x1050 | 1440x900 | 1600x1200 | 1680x1050 | 1920x1200
VGA Input
RGB @60Hz Progressive: 640x480 | 800x600 | 1024x768 | 1280x720 | 1280x768 | 1280x800 | 1280x960 | 1280x1024 | 1360x768 | 1366x768 | 1400x1050 | 1440x900 | 1600x900 | 1600x1200 | 1680x1250 | 1920x1080 | 1920x1200
Passthrough mode:
Output at RX matches input at TX except for:
1) YUV 4:2:0 converted to 8bit RGB
2) For resolutions above 1920x1200 at 50/60Hz framerate is halved

Scaler mode:
User-selectable scaled output
1) All formats converted to 8bit RGB
2) Up to 3840x2160p @30Hz
Supported Standards HDR10 | HLG | BT.2020 | BT.709 | 3D Video
3D HDMI 1.4b 3D: TnB, SbS, F.P
Maximum Pixel Clock 300MHz

Communication and Control

Ethernet 1x LAN (PoE): 8-pin RJ-45 ANSI/TIA-568 8P8C, 1000Base-T, PoE PD (IEEE 802.3af)
USB 1x USB Host: USB Type B
RS-232 1x RS-232: 3.5mm (1/8in) TRS Stereo | 2 Way


Power Supply 12V DC
PoE IEEE 802.3af | (15.4W at PSE)
Max Power Consumption 5.7W (with PSU)


Operating Temperature 32°F ~ 113°F (0°C ~ 45°C)
10% ~ 90%, non-condensing
StorageTemperature -4°F to ~ 158°F (-20°C ~ +70°C)
10% ~ 90%, non-condensing
Maximum BTU 19.45 BTU/hr

Dimensions & Weight

Rack Units/Wall Box 2-gang US J-Box
Height 107.2mm/4.2in (without decorative plate)
Width 91mm/3.6in (without decorative plate)
Depth 45.5mm/1.8in (without decorative plate)
Weight 0.37kg/0.81lbs


Safety and Emission CE | FCC | RCM | RoHS

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