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This HDMI over IP balun transmitter encodes 1080p HDMI signals into a H.265 stream suitable for transmission over a single Cat5e/6 UTP cable. This can be used in a point-to-point system using the A3139 receiver or in a system which transmits to multiple receivers utilising a wired ethernet switch. The maximum distance of cable for a 1080p @ 60Hz signal is 150 metres, with an additional 15m available from the HDMI input/output. One way infra-red control is available (from the transmitter end of the system) using the included IR target. This system is ideal for digital signage or commercial audio visual entertainment systems where a common signal is required to be transmitted to multiple monitors. A local loop output is provided on the transmitter for connection to a local monitor near the source.

Dimensions: 88 x 61.2 x 16.5mm.

Requires matching receiver unit which is sold separately (A3139).

In the Box
1× HDMI over IP Extender (Transmitter)
1× 20-60KHz IR target cable (1.5 meters)
1× 5V/1A Power Adapter
1× User Manual


  • HDCP 1.4 complaint
  • Supports 6.75Gbps video bandwidth
  • Video resolution is up to 1920x1200@60Hz YCbCr 4:4:4
  • Extend distance up to 150m between encoder and decoder via Cat5e/6 cable
  • Adopts Standard H.265 encoding/decoding
  • Supports 1G standard IP swticher / router / hub
  • Supports one-way IR control signal transmission
  • Compact design for easy and flexible installation

Information & Downloads


  • Technical
  • HDCP Compliance: HDCP 1.4
  • Video Bandwidth: 6.75Gbps
  • Video Resolution: 640x480@60Hz~1920x1200@60Hz
  • HDMI Audio Formats: LPCM 2.0CH, 32KHz, 44.1KHz, 48KHz
  • IR Frequency: 20~60KHz
  • Compression Technology: H.265
  • Request for Switcher/Router: Support 1GMP, Support DHCP
  • Colour Space: RGB, YCbCr 4:4:4, YCbCr 4:2:2
  • Colour Depth: 12-Bit
  • ESD Protection: Human body model ~ ±8kV (Air-gap discharge) & ±4kV (Contact discharge)
  • Connection
  • Inputs: 1 x HDMI Type A (19-pin Female)
  • Outputs: 1 x HDMI Type A (19-pin Female), 1 x CAT OUT (RJ45 connector)
  • Control: 1 x IR OUT (3.5mm Stereo Mini-jack)
  • Mechanical
  • Housing: Metal Enclosure
  • Silkscreen colour: Black
  • Dimensions: 88 x 61.2 x 16.5mm
  • Weight: 155g
  • Power Supply: Input: 100 AC ~ 240V 50/60Hz, Output: 5V DC 1A (US/EU Standard, CE/FCC/UL certified)
  • Operation Temperature: -10°C ~ 50°C
  • Storage Temperature: -20°C ~ 60°C
  • Relative Humidity: 20~90% (non-condensing)
  • Resolution/Distance: 1920x1200@60Hz
  • CAT 5e/6 cable: 150m
  • Resolution/Distance: 1920x1200@60Hz
  • HDMI IN/OUT: 15m
    • *Specifications are subject to change without notice.

Warranty & Returns


We offer 12 months warranty on this product from its date of purchase. This is available from Altronics stores, online purchases or Altronics resellers. In accordance with our full warranty terms we will repair, replace or refund if goods you have purchased from us are defective.


Not withstanding our warranty policy, if you are dissatisfied with our goods or service you may return the goods within 14 days of our despatch date. Simply contact us for a return authorisation number and we will refund your purchase in full, less transport costs on receipt of goods. All returned goods must be in as sold condition including all packaging, instructions, invoices etc.