Safety precautions
To ensure the best from the product, please read all instructions carefully before using the device. Save this manual for further reference.
- Unpack the equipment carefully and save the original box and packing material for possible future shipment.
- Follow basic safety precautions to reduce the risk of fire, electrical shock and injury to persons.
- Do not dismantle the housing or modify the module. It may result in electrical shock or burn.
- Using supplies or parts not meeting the products’ specifications may cause damage, deterioration or malfunction.
- Refer all servicing to qualified service personnel.
- To prevent fire or shock hazard, do not expose the unit to rain, moisture or install this product near water.
- Do not put any heavy items on the extension cable in case of extrusion
Introduction
The HDMI 18Gbps Repeater is the most advanced solution for HDMI signal extension/cascade. It can amplify and equalize signals to improve the quality of audio and video signal. It supports the transmission distance for input and output respectively up to 10m and 5m at the resolution of 4K2K@50/60Hz(YUV_444), 15m and 10m at 4K2K@60Hz (YUV_420), 20m and 20m at 1080p@60Hz. Capable of receiving and transmitting 18Gbps bandwidth rate with CDR (Clock Data Recovery) to ensure no data loss.
Features
- Compliant with HDMI 2.0b, HDCP 2.3 / 1.x and DVI 1.0
- Support 18Gbps video bandwidth
- Support resolution up to 4K2K@60Hz 4:4:4
- Built-in TMDS equalization and CDR (Clock Rate Recovery) for extending HDMI cable distance
- Support HDR, HDR10, HDR10+, Dolby Vision, ARC and CEC pass-through
- Signal amplification, jitter cleaning and signal conditioning of HDMI2.0 signal with cascade function
- Simple plug and play, no drive and installation setting are required
- Compact professional mountable housing with locking power connector
Package List
- 1 × HDMI Repeater
- 1 × USB to DC 5.5mm locking cable (Male, 1.5m)
- 1× User Manual
Receiver panel

HDMI OUT
HDMI output port, connect to HDMI display device such as TV or monitor with an HDMI cable.
Power LED, lights red when the repeater is powered on.
| No. | Name | Function Description |
|---|---|---|
| 1 | HDMI IN | HDMI input port, connect to HDMI source device such as DVD or PS3 with an HDMI cable. |
| 2 | HDMI OUT | HDMI output port, connect to HDMI display device such as TV or monitor with an HDMI cable. |
| 3 | PWR | Power LED, lights red when the repeater is powered on. |
| 4 | DC 5V | Power input port. |
Specification
| Technical | |
|---|---|
| Video Resolution | Up to 4K2K@60Hz YUV 4:4:4 |
| HDCP Compliance | HDCP 2.3 / 1.x |
| HDMI Compliance | HDMI 2.0 |
| Color Depth | 8-bit, 10-bit, 12-bit (1080p@60Hz) 8-bit (4K2K@60Hz YUV4:4:4) 8-bit, 10-bit, 12-bit (4K2K@60Hz YCbCr 4:2:2/4:2:0) |
| HDMI Audio Formats | PCM2.0/5.1/7.1CH, Dolby 5.1, DTS5.1, Dollby-TrueHD, DTS-HD |
| Color Space | RGB, YCbCr 4:4:4, YUV 4:4:4, YCbCr 4:2:2/4:2:0 |
| ESD Protection | Human body model — ±8kV (Air-gap discharge) &±4kV (Contact discharge) |
| Video Bandwidth | 594MHz/18Gbps |
| Power Supply | DC 5V/1A |
| Power Consumption | 0.5 W |
| Operating Temperature | 0 - 40°C |
| Storage Temperature | -20 - 60°C |
| Relative Humidity | 20 - 90% RH (no condensation) |
| Dimensions | 70mm[W] x 75mm[D] x 18mm[H] |
| Color | Black |
| Housing | Metal Enclosure |
| Weight | 125g |
| Input | 1x HDMI Type A [19-pin female] |
| Output | 1x HDMI Type A [19-pin female] |
System Diagram
The following diagrams illustrate typical input and output connections that can be utilized with this repeater:

- Connect a source such as a PC to the repeater’s HDMI IN port by HDMI cable.
- Connect a TV to the HDMI OUT port on the repeater.

- Power on the repeater by connecting to a DC 5V power supply.

PC
HDMI cable
HDMI cable
Power Supply
TV
Repeater
Usage Precaution
- Make sure all components and accessories included before installation.
- System should be installed in a clean environment with proper temperature and humidity.
- All of the power switches, plugs, sockets, and power cords should be insulated and safe.
- All devices should be connected before power on.
After-Sales Service
If there appear some problems when running the product, please check and deal with the problems referring to this user manual. Any transport costs are borne by the users during the warranty.
- Product Limited Warranty: This workmanship for three years (The Proof of purchase in the form of a bill of sale or receipted invoice which is Proof of purchase in the form of a bill of sale or receipted invoice which is evidence that the unit is within the Warranty period must be presented to warranty service.
- What the warranty does not cover (servicing available for a fee):
- Warranty expiration.
- Factory applied serial number has been altered or removed from the product.
- Damage, deterioration or malfunction caused by:
- Normal wear and tear
- Use of supplies or parts not meeting our specifications
- No certificate or invoice as the proof of warranty
- The product model showed on the warranty card does not match with the model of the product for repairing or had been altered
- Damage caused by force majeure
- Servicing not authorized
- Any other causes which does not relate to a product defect
- Delivery, installation or labor charges for installation or setup of the product
Technical Support: For any questions or problems, contact your distributor or reseller and tell them the respective product name and version, the detailed failure situation as well as the formation of the cases.
Asking for Assistance
Technical Support:
Phone: +49 5971 800299
Fax: +49 5971 800299
Technical Support Hours:
8:30 AM to 5:00 PM Monday thru Thursday
8:30 AM to 4:00 PM Friday
Write to:
PareLink GmbH
Von-Liebig-Straße 10
D - 48432 Rheine
www.purelink.de
info@purelink.de
Legal & Compliance
Product identification
Model: PT-R-HD21 – manual version 1.0
Trademarks and disclaimer
Product model and logo are trademarks. All other company and product names mentioned are trademarks of their respective owners. All rights reserved. No part of this publication may be copied or reproduced without prior written permission. We reserve the right to make changes to the device, packaging or manual and accept no liability for misprints.
FCC
FCC FCC FCC FCC Statement It has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules.
Disposal of electrical and electronic equipment
WEEE reg. no.: DE 93847290
The crossed-out wheelie bin symbol on the product, packaging or in this manual means that electrical and electronic equipment must not be disposed of with household waste at the end of its life. Hand in old devices free of charge at a public collection point or return them to a distributor obliged to take them back. Remove batteries and lamps that can be removed without destroying the device before handing it in, and delete any personal data stored on the device. Details are regulated by national law. By returning old devices you help protect the environment.
Packaging
Dispose of packaging separately by material (paper/cardboard, plastics) via the local collection systems. Keep packaging material away from children – risk of suffocation. Packaging register LUCID: DE5958616449295.

