DS-55512 4K HDBaseT HDMI KVM Extender Set 70 m
Installation Guide
Introduction
The HDBaseT™ HDMI KVM Extender Set enables signal transmission over large distances using a simple copper data cable. The maximum transmission distance is 70 m (Full HD). 4K signals can be extended to up to 40 m. Thanks to PoC, only one unit needs to be supplied with power by an external power adapter. Bi-directional IR transmission and KVM functionality (USB 1.1) for connection to mouse and keyboard are also included as features.
Main Features
- Extends the maximum length for HDMI cables to up to 70 m (Full HD, 1080p/60Hz) or 40 m (UHD, 4K/30Hz) via a simple network cable
- KVM functionality (USB 1.1) for connection to mouse and keyboard
- PoC (Power over Cable) – Only the unit requires an external power adapter
- Supports Cat5e, CAT 6, CAT 6A, CAT 7, and CAT 8 network cable
- Video bandwidth: 10.2 Gbps
- Supports HDBaseT™ 1.0
- HDCP 2.2, 1.4
- IR transmission (bi-directional)
- Compact design for easy and flexible installation
- Sturdy metal housing
Package Contents
- 1x Transmitter unit
- 1x Receiver unit
- 1x IR transmission cable (1.5 m)
- 1x IR receiver cable (1.5 m)
- 1x Power adapter (DC 12V/1A, 1.45 m)
- 1x USB-B-A cable (1.5 m)
- 4x Mounting plate
- 1x User manual
Specification
| Technical | |
| HDMI Compliance | HDMI 1.4b |
| HDCP | HDCP 2.2/1.4 |
| USB Version | USB 1.1 |
| Video Bandwidth | 340MHz/10.2Gbps |
| Video Resolution | 480i –1080p50/60Hz, 4Kx2K@24/30Hz |
| Color Depth | 8/10/12-bit (1080P@60Hz) 8-bit (4K2K@30Hz) |
| Color Space | RGB, YCbCr 4:4:4/4:2:2. YUV 4:2:0 |
| Audio Format | LPCM, Dolby Digital/Plus/EX, Dolby True HD, DTS, DTS-EX, DTS-96/24, DTS High Res, DTSHD Master Audio, DSD |
| Transmission Distance | Max. distance (1080P@60Hz): 230ft /70m over CAT Se/6 Max. distance (4K2K@30Hz): 131ft / 40m over CAT Se/6 |
| ESD Protection | Human body model — ±8kV (Air-gap discharge) & ±4kV (Contact discharge) |
| Connection | |
| Transmitter | Inputs: lx HDMI IN (TypeA, 19-pin female] lx USB [USB-B, female] Output: lx HDBaseT OUT [RJ45] Controls: lx IR IN [3.5mm Stereo Mini-jack] lx IR OUT (3.5mm Stereo Mini-jack] |
| Receiver | Input: lx HDBaseT IN [RJ45] Outputs: lx HDMI OUT [TypeA, 19-pin female] 2x USB [USB-A, female] Controls: lx IR IN [3.5mm Stereo Mini-jack] lx IR OUT [3.5mm Stereo Mini-jack] |
| Mechanical | |
| Housing | Plastic Enclosure |
| Color | Black |
| Dimensions | Transmitter / Receiver: 140mm (W) x 65mm (D) x 18mm (H) |
| Weight | Transmitter: 224g; Receiver: 227g |
| Power Supply | Input: AC100 – 240V 50/60Hz Output: DC 12V/1A (US/EU standards, CE/FCC/UL certificated) |
| Power Consumption | 6.6W (max) |
| Operating Temperature | 0°C — 40°C / 32°F — 104°F |
| Storage Temperature | -20°C — 60°C / -4°F — 140°F |
| Relative Humidity | 2090% RH (non-condensing) |
Operation Controls and Functions
Transmitter Panel 
| No. | Name | Function Description |
| 1 | Power LED | The red LED is on when the The transmitter is powered on. |
| 2 | DC 12V | DC 12V/1A power input port. Note that the extender supports the POC function, it means that either Transmitter or Receiver is connected to a 12V/1A power supply, and the other doesn’t need a power supply. |
| 3 | HDBT OUT | R145 connector for connecting the HDBT IN port of the Receiver with CAT 5e/6 cable. |
| 4 | Connection Signal Indicator (Green) | • Illuminating: Transmitter and Receiver are in good connection status. • Flashing: Transmitter and Receiver are in poor connection status. • Dark: Transmitter and Receiver are not connected |
| 5 | Data Signal Indicator (Yellow) | • Illuminating: HDMI signal with HDCP. • Flashing: HDMI signal without HDCP. • Dark: No HDMI signal |
| 6 | HDMI IN | HDMI signal input port. Connect to HDMI source devices such as DVD or PC |
| 7 | IR IN | Connect to IR receiver cable for receiving the signal from the IR remote |
| 8 | IR OUT | Connect to IR blaster cable to control the source device. This IR output signal is from the IR IN port of the Receiver. |
| 9 | PC | USB type B port, connect to PC. |
Receiver Panel

| No. | Name | Function Description |
| 1 | Power LED | The red LED is on when the The transmitter is powered on. |
| 2 | DC 12V | DC 12V/1A power input port. Note that the extender supports the POC function, it means that either Transmitter or Receiver is connected to a 12V/14 power supply, and the other doesn’t need a power supply. |
| 3 | HDBT IN | RJ45 connector for connecting the HDBT OUT port of Transmitter with CAT 5e/6 cable. |
| 4 | Connection Signal Indicator (Green) | • Illuminating: Transmitter and Receiver are in good connection status. • Flashing: Transmitter and Receiver are in poor connection status. • Dark: Transmitter and Receiver are not connected |
| 5 | Data Signal Indicator (Yellow) | • Illuminating: HDMI signal with HDCP. • Flashing: HDMI signal without HDCP. • Dark: No HDMI signal |
| 6 | HDMI OUT | HDMI signal output port. Connect to an HDMI display device with an HDMI cable. |
| 7 | IR IN | Connect to IR receiver cable for receiving the signal from the IR remote. |
| 8 | IR OUT | Connect to IR blaster cable to control the source device. This IR output signal is from the IR IN port of the Receiver. |
| 9 | USB | USB Type-A ports, connect to key- board or mouse for KVM function |
IR Pin Definition
IR Receiver and Blaster pin’s definition is as below:

Note:
When the angle between the IR receiver and the remote control is ± 45°, the transmission distance is 0-5 meters;
When the angle between the IR receiver and the remote control is ± 90°, the transmission distance is 0-8 meters
Application Example
Transmitter

| 1 | Power Adapter | 7 | UHDTV |
| 2 | CAT 5e/6 cable | 8 | IR Receiver |
| 3 | DVD or Blu-ray Player | 9 | IR Blaster |
| 4 | IR Receiver | 10 | Keyboard |
| 5 | IR Blaster | 11 | Mouse |
| 6 | PC |
Disclaimer
The terms HDMI and HDMI High-Definition Multimedia Interface, and the HDMI Logo are trademarks or registered trademarks of HDMI Licensing LLC in the United States and other countries.
HDBaseT™ and the HDBaseT Alliance logo are trademarks of the HDBaseT Alliance.
Hereby ASSMANN Electronic GmbH declares that the Declaration of Conformity is part of the shipping content. If the Declaration of Conformity is missing, you can request it by post under the below-mentioned manufacturer address.
www.assmann.com
Assmann Electronic GmbH
Auf dem Schüffel 3
58513 Lüdenscheid
Germany![]()




















