Atlona > Products > Extenders > STP/UTP > HDMI > **Replaced with AT-HDTX-IR & AT-HDRX-IR**

**Replaced with AT-HDTX-IR & AT-HDRX-IR**

Atlona HDMI Extender with 3D Support over Single Cat5/6 up to 200ft with Bi-Directional IR (SENDER/RECEIVER INCLUDED) Atlona HDMI Extender with 3D Support over Single Cat5/6 up to 200ft with Bi-Directional IR (SENDER/RECEIVER INCLUDED) Atlona HDMI Extender with 3D Support over Single Cat5/6 up to 200ft with Bi-Directional IR (SENDER/RECEIVER INCLUDED)  
• • • Discontinued • • •

Model Number: AT-HD4-V40SRS

The Atlona AT-HD4-V40SRS is an HDMI with Bi-Directional IR Extension Kit. The extenders are designed to handle full 1080p up to 130ft and 1080i/720p up to 200ft. The HD4-V40SRS are capable of supporting very high bandwidth and therefore are able to handle all 7 x 3D formats. 


  •   Overview
  •   Related
  •   Case
  •   Documentation
  •   Video
  •   FAQ

The Atlona AT-HD4-V40SRS is an HDMI with Bi-Directional IR Extension Kit. The extenders are designed to handle full 1080p up to 130ft and 1080i/720p up to 200ft. The HD4-V40SRS are capable of supporting very high bandwidth and therefore are able to handle all 7 x 3D formats.

The Atlona HD4-V40SRS are based on the latest HDMI technology and therefore are capable of fully supporting HDCP 2.0, Deep Color and DTS-HD or Dolby TrueHD audio. In addition, AT-HD4-V40SRS are also equipped with bi-directional IR pass-through, which allows users to control the sources from the remote location as well as sending IR signal from a control system to a remote location. Perfect for Control4, RTI, HAI or any other control system users or dealers.

The AT-HD4-V40SRS includes two modules: transmitting module and receiving module, where the transmitter module converts HDMI with IR to RJ45 and the receiver module converts it back to HDMI and IR. The receiver module is featured with 8-step equalization control, to allow users to adjust the equalization strength to the received HDMI signals accordingly, and therefore optimize the transmission distance between source and display.



  • Extends the transmission range up to 130ft (40m) at full 1080p or 1920x1200 and 200ft (60M) at 1080i/720p
  • Supports all latest Audio formats such as Dolby True HD, DTS-master, etc…
  • 3D Compatible (all 7 formats), including the most popular e.g., Frame Packing, Side-by-Side, Top-to-Bottom, etc...
  • 7 x Embedded EDID functions and Learning EDID function available. Learning function allows user to trick the source to think that it connected to the display rather than going through extenders. This advantage can fix a lot of EDID issues which may happened in a complicated installations with different components involved.
  • Supports Bi-Directional IR pass-through up to 60Khz, allows users not only send IR signals from remote location but also to remote location from a control system. Great for Control4 or RTI installers.
  • Supports VESA DDC and Hot-Plug Detect (HPD)
  • HDCP compatible
  • DVI 1.0 compliant, user will need to use DVI/HDMI adapter
  • Supports Deep Color
  • Allows cascading
  • Wall mounting housing design for easy and robust installation
  • Locking Power connector


a. (1080p)-130ft (40m) (CAT5e) / 165ft (50m)-CAT6

b. (720p/1080i)-165ft (50m) (CAT5e) / 200ft (60m)-CAT6

  • Video Bandwidth: 6.75Gbps
  • Resolutions and Distance:
  • Audio Support: Up to 8-channel including all latest digital formats such as Dolby TrueHD and DTS Master
  • IR: Bi-directional up to 20~60kHz
  • Input TMDS signal: 1.2 volts (peak-to-peak)
  • Input DDC signal: 5 volts (peak-to-peak)
  • HDMI Connector: 19 pin type female connector
  • Power Supply: 5V 4A (Universal 110/240)
  • Power Consumption: 1.5 Watts (max)
  • Dimensions (L x W x H): 2.9” x 3.5” x 1” (75 x 90 x 25mm)
  • Weight: 0.3lb each unit

Package Includes:

  • 1x AT-HD4-V40SRS (Transmitting and Receiving Modules)
  • 1x IR blaster
  • 1x IR receiver
  • 2x 5V power supply unit
  • 1x User’s manual

Warranty: 3 Years


This product has been discontinued and replaced with AT-HDTX-IR, AT-HDRX-IR

Atlona Technologies: University of California San Diego Case Study


So Long SD, Hello HD

In December 2008, the University of California, San Diego, began a project to establish HD delivery — from legacy SD and new HD sources — to 32 new viewing stations for the University’s Arts Library Media Reserves Service. The stations would allow faculty and the UCSD Arts Library to continue using the library’s collection of more than 6,000 VHS titles and nearly 9,000 DVDs, as well as a growing collection of Blu-ray titles, as part of course curricula, and to display this content in the HD format that both faculty and students appreciate. The installation was to represent a significant improvement over the library’s previous system, which featured fewer stations equipped with small 13-inch and 21-inch SD screens. A key challenge to the project was high-end scaling and reliable HDMI delivery over long distances to the various viewing stations, without compromising image quality or video continuity. To achieve this, UCSD turned to Atlona Technologies.


Atlona’s Solutions
For the Arts Library, UCSD is utilizing Atlona’s AT-LINE-PRO2 video scaler with HDMI output, and the AT-HD4-V40SRS HDMI 1.3 extender with 3D support. The AT-LINE-PRO2 behaves as a switcher and HDTV scaler, and it is able to output multiple resolutions so that the user can match native resolution to the display. Just one of these devices connects composite, S-video, component video, VGA (PC), and HDMI sources to one HDMI out. The Atlona AT-HD4-V40SRS extender is designed to handle full 1080p up to 130 feet and 1080i/720p up to 200 feet. The AT-HD4-V40SRS is capable of supporting very high bandwidth and therefore is able to handle all seven 3D formats. At the Arts Library, the AT-LINE-PRO2 switcher/scaler accepts composite, component, and HDMI sources, scaling and feeding the signal to the Atlona AT-HD4-V40SRS HDMI extender with remote control. The AT-HD4-V40SRS sender/receiver pair delivers the HDMI signal over Cat 6 cable to the viewing stations.


Going the Extra Mile
Responsive and extensive support from Atlona also was a key factor in the installation, and it proved fundamental to the success of the project. The type of Cat 6 cable purchased by the library was not the cabling anticipated by the internal technical team. To ensure that the end-to-end system would perform as required, Atlona purchased the same cable and performed testing on working models, sending the UCSD technical team prototypes and firmware updates designed to overcome issues of substandard quality and video dropout. Through this process, Atlona helped the UCSD team to identify power conditioning as the source of video issues, in turn enabling them to solve this problem by deploying power conditioning devices in the equipment racks at the library reserve desk and at each workstation. Atlona’s willingness to work closely with the library’s technical team was critical to overcoming this issue, and to doing so efficiently and cost-effectively.


Mission Accomplished
UCSD’s system went online in January 2009. With the Atlona solutions in place, students can now watch assigned media on reserve at the library at new viewing stations, 30 of which are equipped with 27-inch Dell computer screens and two equipped with 37-inch Panasonic televisions. Media played out from VHS, DVD, and Blu-ray devices is switched and scaled transparently to provide the highest possible quality HD output. Students simply sit at a viewing station, initiate playout via the remote control unit, plug in their headphones, and watch assigned video.


“Atlona’s AT-LINE-PRO2 and AT-HD4-V40SRS were actually selected after extensive research and a failed implementation of a competing product. The Atlona systems have met our need for high-end scaling and reliable HDMI delivery over long distances. Even video from a VHS system can now be displayed to good effect on a 37-inch TV screen,” said Larry Andrews, Technical Facilities Manager at UCSD. “Feedback from faculty and students regarding ease of use and image quality has been very positive. In addition to improving video quality at viewing stations, the installation has extended the useful life of the library’s many VHS- and DVD-based media assets.”

Atlona Video Scaler with HDMI output   Atlona HDMI Extender with 3D Support over Single Cat5/6 up to 200ft with Bi-Directional IR (SENDER/RECEIVER INCLUDED)
Atlona Video Scaler with HDMI output

Atlona HDMI Extender with 3D Support over Single Cat5/6 up to 200ft with Bi-Directional IR (SENDER/RECEIVER INCLUDED)



 Declaration of

Set up and EDID learn
  Can the AT-HD4-V40SR go further than 130ft if I choose to use CAT6 cable?
  The AT-HD4-V40SRS is optimized to go a maximum distance of 130ft when transmitting 1080P over a single cable. If requiring longer distances of up to 200ft, one can lower the resolution of the source to 1080I or 720P.

  I just bought a brand new set of these extenders and they are not working.

If you are unable to get a picture from the extenders please try performing an EDID learn from your television. (Please review the video for a step by step process)

  What CAT cable do you recommend for these units?
  Atlona recommends using 568B terminated CAT5E or CAT6 solid cables.

  Can I directly connect IR cables from a control system into my Extenders?
  Unfortunately, due to differences in hardware, you cannot directly connect an IR transmit cable from an IR system into our units IR receiver port, you will rather take the IR receiver that comes with the Atlona units and tape it to the transmitter from your control system. Although this might not look the best aesthetically, this will give you full functionality of transmitting IR through our extenders.

  I can get 2D video but not 3D video, what is causing this?
  Make sure that the mode setting is set to MODE4 (7.1 channel audio) or MODE6 (2 channel audio).

  I am using these extenders with a variety of sources, some work and others do not. What can cause this to occur?

Certain sources are not as optimized for extenders and others are thus you may want to perform an EDID learn as mentioned in this video.

  When I turn on/off any appliance, I am getting an intermittent disturbance in picture. What is causing this?
  If you are seeing a flash of video on your screen when turning appliances on or off, this might mean that your CAT cable is picking up electrical interference. To fix this, please try relocating the current CAT cable away from any outside sources of electrical interference both inside and outside any walls the cable is near. If this doesn’t help, you may need to run a shielded CAT cable and ensure it is in 568B termination. Also make sure the cable is not near any Romex cable lines.

  Why my Pioneer AVR (Elite VSX-42) has no sync when being used in conjunction with AT-HD4-V40SRS?
  All AT-HD4-V40SRS with serial number after 0140248212110901020 have updated transmitters (TX). If you have an older version, the TX will need to be updated. Please contact Atlona Technical Support for assistant