Kramer EXT3-H-T 4K60 4:4:4 HDR HDMI Transmitter with RS-232 & IR over Long–Reach HDBaseT
HDBaseT 3.0 transmitter
Up to 40m (130ft) at 4K@60Hz (4:4:4)
Up to 70m (230ft) at up to 4K@30Hz (4:4:4) or 1080P
Bidirectional RS–232 & IR control extension
Kramer EXT3-H-T is a high−performance, HDBaseT 3.0 transmitter for 4K60 4:4:4 HDR HDMI, RS−232 and IR signals over twisted pair. EXT3−H−T converts the HDMI signal and outputs it to its HDBaseT and control ports. It enables extending video signals to up to 40m (130ft) over Kramer copper CAT cables at up to 4K@60Hz (4:4:4) video resolutions. It is compatible with standard HDBaseT−compliant extenders at up to 4K@60Hz 4:4:4 video resolutions.
- High Performance Standard Extender — Professional HDBaseT extender for providing signals over twisted–pair copper infrastructures. Video signals are transmitted uncompressed with near–zero latency.
- Future–proof, Standard Extender — EXT3–H–T is a standard HDBaseT extender, backwards compatible with other standard HDBT extenders. It extends uncompressed HDBaseT signals
- HDMI Signal Extension — HDR HDCP 2.3 compliant. Supports deep color, x.v.Color™, lip sync, HDMI uncompressed audio channels, Dolby TrueHD, DTS–HD, 2K, 4K, and 3D as specified in HDMI 2.0b. EDID and CEC signals are passed through from the source to the display.
- Multi–channel Audio Extension — Up to 32 channels of digital stereo uncompressed signals for supporting studio–grade surround sound.
- Bidirectional RS–232 Extension — Serial interface data flows in both directions, allowing data transmission and device control at baud rates up to 115200 bps with no need for pre configuration.
- Bidirectional Infrared Extension — IR interface data flows in both directions, allowing remote control of peripheral devices located at either end of the extended line.
- Cost–Effective Maintenance — Status LED indicators for HDMI and HDBT ports facilitate easy local maintenance and troubleshooting. Local firmware upgrade via RS–232 connection ensures lasting, field–proven deployment.
- Easy Installation — Compact DigiTOOLS® fan–less enclosure for dropped–ceiling mounting, or side–by–side mounting of 3 units in a 1U rack space with the recommended rack adapter.

Inputs
1 HDMI: On a female HDMI connector
Ports
HDBaseT 3.0: Output port
1 RS-232: On a 3–pin terminal block connector for serial link extension
1 IR: On a 3.5mm mini jack connector
Extension Line
Standard Compression: Up to 40m (130ft) at 4K@60Hz (4:4:4)
High Compression: Up to 70m (230ft) at 4K@30Hz (4:4:4) or full HD (1080p @60Hz 36bpp)
Standards Compliance: HDBaseT 3.0
Note: When using recommended Kramer cables
Video
Max Data Rate: Up to 18Gbps (6Gbps per graphic channel)
Compliance: HDCP 2.3, HDR 10
HDMI Support: Deep color, x.v.Color™, lip sync, HDMI uncompressed audio channels, Dolby TrueHD, DTS–HD, 2K, 4K, and 3D as specified in HDMI 2.0b
EXTENDED BIDIRECTIONAL RS-232
300 to 115200 baud rate
EXTENDED BIDIRECTIONAL IR
20kHz to 100kHz frequency
User Interface
Indicators: IN, OUT, LINK and ON LEDs
Controls: DIP–switches
Power
Source: 12V DC, 2A
Consumption: 450mA
Environmental Conditions
Operating Temperature: 0° to +40°C (32° to 104°F)
Storage Temperature: –40° to +70°C (–40° to 158°F)
Humidity: 10% to 90%, RHL non–condensing
Regulatory Compliance (Standards Compliance)
Safety: CE, UL
Environmental: RoHs, WEEE
Enclosure
Size: DigiTOOLS®
Type: Aluminum
Cooling: Convection ventilation
Accessories
Included: Power adapter, power cord, bracket set
General
Product Dimensions: 12.00cm x 7.15cm x 2.44cm (4.72" x 2.81" x 0.96" ) W, D, H
Product Weight: 0.3kg (0.6lbs) approx
Shipping Dimensions: 49.00cm x 18.60cm x 58.80cm (19.29" x 7.32" x 23.15" ) W, D, H
Shipping Weight: 0.7kg (1.5lbs) approx
Product Dimensions
12.00cm x 7.15cm x 2.44cm (4.72" x 2.81" x 0.96" ) W, D, H
Product Weight
0.2kg (0.5lbs) approx.
Kramer EXT3-H-R 4K60 4:4:4 HDR HDMI Receiver with RS–232 & IR over Long–Reach HDBaseT
HDBaseT 3.0 receiver
Up to 40m (130ft) at 4K@60Hz (4:4:4)
Up to 70m (230ft) at up to 4K@30Hz (4:4:4) or 1080P
Bidirectional RS–232 & IR control extension
Kramer EXT3-U3-T/R USB 3.2 Gen 1 Extender–Receiver
Extra reach (100 m) Extender Receiver for USB3.2 Gen1 device side
USB Hub functionality
Three device ports
RS232 and FSYNC signals passthrough extension
PoE+ powered device
Demi Tool form factor
Kramer EXT3-UE-R USB 2.0 and Ethernet PoC Receiver
4–port remote USB devices
Ethernet and audio extension
Up to 100m (330ft) CAT extension reach
Two–way PoC powering
Kramer EXT3-U-R USB Receiver
4–port remote USB devices
USB 2.0 100m (330ft) receiver
Two–way PoC powering
Compact
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