StarTech Over CAT5 or CAT6 Extender User Guide

: June 7, 2024
: StarTech

StarTech

HDMI® Over CAT5 or CAT6 Extender
4K 60Hz
ST121HDBT20S

Instruction manual

*actual product may vary from photos

For the latest information, technical specifications, and support for this product, please visit www.startech.com/ST121HDBT20S
Manual Revision: 05/02/2018

FCC Compliance Statement
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
Consult the dealer or an experienced radio/TV technician for help

This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
Changes or modifications not expressly approved by StarTech.com could void the user’s authority to operate the equipment.

Industry Canada Statement
This Class B digital apparatus complies with Canadian ICES-003.
CAN ICES-3 (B)/NMB-3(B)

This device complies with Industry Canada licence-exempt RSS standard(s).
Operation is subject to the following two conditions: (1) This device may not cause interference, and (2) This device must accept any interference, including interference that may cause undesired operation of the device.

Use of Trademarks, Registered Trademarks, and other Protected Names and Symbols
This manual may make reference to trademarks, registered trademarks, and other protected names and/or symbols of third-party companies not related in any way to StarTech.com. Where they occur these references are for illustrative purposes only and do not represent an endorsement of a product or service by StarTech.com, or an endorsement of the product(s) to which this manual applies by the third-party company in question. Regardless of any direct acknowledgment elsewhere in the body of this document, StarTech.com hereby acknowledges that all trademarks, registered trademarks, service marks, and other protected names and/or symbols contained in this manual and related documents are the property of their respective holders.

Product Diagram

Actual product may vary from photos.

Transmitter Front View

LED Indicator
IR Out Port
IR In Port

Transmitter Rear View

Grounding Screw
LINK (RJ45 Connector)
DC 18V Power Port
HDMI In Port

Receiver Front View

LED Indicator
IR In Port
IR Out Port

Receiver Rear View

Grounding Screw
LINK (RJ45 Connector)
DC 18V Power Port
HDMI Out Port

Package Contents

1 x HDMI Transmitter
1 x HDMI Receiver
1 x Universal Power Adapter (NA/JP, EU, UK, ANZ)
2 x Mounting Brackets
8 x Rubber Feet
1 x Quick-Start Guide
1 x IR (Infrared) Receiver
1 x IR (Infrared) Blaster

Requirements

Operating system requirements are subject to change. For the latest requirements, please visit www.startech.com/ST121HDBT20S.

HDMI Enabled Video Source Device (e.g. computer)
HDMI Enabled Display Device (e.g. projector)
Available AC Electrical Outlet for Transmitter or Receiver
HDMI Cables for Transmitter and Receiver
Phillips Head Screwdriver

Installation

Installing the HDMI Transmitter/Receiver

Note : Make sure that the HDMI Transmitter and Receiver are each located near an AC Electrical Outlet and that all devices connected to them are turned off.

Setup the Local Video Source (e.g. computer) and the Remote Display (place/mount the display appropriately).
Position the HDMI Transmitter near the Video Source you set up in step 1.
On the back of the HDMI Transmitter, connect an HDMI cable from the Video Source (e.g. computer) and to the HDMI IN port.
Position the HDMI Receiver near the Video Display you set up in step 1.
On the back of the HDMI Transmitter, connect an RJ45 terminated CAT5e/CAT6 Ethernet cable (cables sold separately) to the RJ45 connector.
Connect the other end of the CAT5e/CAT6 Ethernet cable to the RJ45 connector on the back of the HDMI Receiver..
Notes : Properly grounding the HDBase Transmitter and HDBaseT Receiver can prevent damage and improve audio/video signal quality.
The cabling should not go through any networking equipment (e.g. router, switch, etc).
On the back of the HDMI Receiver, connect an HDMI cable from the Video Sink
Device into the HDMI Out port.
Connect the Universal Power Adapter to the DC 18V Power Port on either the HDMI Transmitter or HDMI Receiver and to an AC Electrical Outlet to power both the HDMI Transmitter and HDMI Receiver (using the Power Over Cable feature).

(Optional) Installing the Ground Wires.

Note: Grounding is recommended in environments with high levels of electromagnetic interference (EMI), or frequent electrical surges.
Transmitter/Receiver (Back)

Using a Phillips head screwdriver (sold separately) remove the Grounding Bolt.
Attach the Grounding Wire to the shaft of the Grounding Bolt.
Insert the Grounding Bolt back into the Ground.
Tighten the Grounding Bolt, making sure not to over-tighten.
Attach the other end of the Grounding Wire (not connected to the HDMI Transmitter/HDMI Receiver) to a proper earth ground connection.

Installing the IR Receiver and IR Blaster

The IR Receiver and IR Blaster can be connected to either the HDMI Transmitter or HDMI Receiver.

HDMI Transmitter:

If the device receiving the IR signal is at the remote side:

Connect the IR Receiver to the IR In Port on the front of the HDMI Transmitter
Position the IR Sensor where you’ll point your IR Remote Control. If the device receiving the IR signal is at the local side:
Connect the IR Blaster to the IR Out port on the front of the HDMI Transmitter.
Position the IR Sensor directly in front of the video source’s IR Sensor (if you’re unsure, check the manual of your video source to determine the IR sensor location).

HDMI Receiver:

If the device receiving the IR signal is at the remote side:

Connect the IR Blaster to the IR Out Port on the HDMI Receiver.
Position the IR Sensor directly in front of the device’s IR Sensor (if you’re unsure, check the manual of your video source to determine the IR sensor location).

If the device receiving the IR signal is at the local side:

Connect the IR Receiver to the IR In Port on the HDMI Receiver.
Position the IR Sensor where you’ll point your IR Remote Control.

Video Resolution Performance

The video resolution performance of this extender will vary depending on the length of your network cabling. For best results, StarTech.com recommends using a shielded CAT6 cable.

Distance	Maximum Resolution
30 m (115 ft.) or less	4K at 60Hz
Up to 70 m (230 ft.)	1080p at 60Hz

LED Indicators

LED

|

Connection

---|---
| Link| Video| CP/DCP| HDCP| Monitor
Transmitter
Green/Flash Off x 1 or x 2| X| X| X| X| X
Green/Flash Blue x 3| X| √| X| X| X
Green/Flash Purple x

1 or x 2

| X| √| X| √| X
Flash Blue x 1| √| X| X| X| X
Blue/Flash Off x 1| √| √| X| X| X
Blue/Flash (Blue & Green) x 1| √| √| √| X| X
Purple/Flash off x 1 or x 2| √| √| X| √| HDCP

Match

Purple/Flash (Blue & Green) x 1 or x 2| √| √| √| √| HDCP

Match

Purple/Flash Red x 1 or x 2| √| √| X| √| HDCP NonMatch
Receiver
Green/Flash Blue x 3| X| √| X| X| X
Green/Flash Purple x 1 or x 2| X| √| X| √| X
Flash x 1 = HDCP (High-brandwidth Digital Content Protection) 1.4| Flash x 2 – HDCP 2.2|
CP = Compress| | DCP = Decompress
X = No connection established| √ = Connection established

Product Support

Technical Support

StarTech.com’s lifetime technical support is an integral part of our commitment to provide industry-leading solutions. If you ever need help with your product, visit www.startech.com/support and access our comprehensive selection of online tools, documentation, and downloads.
For the latest drivers/software, please visit www.startech.com/downloads

Warranty Information

This product is backed by a two-year warranty.
StarTech.com warrants its products against defects in materials and workmanship for the periods noted, following the initial date of purchase. During this period, the products may be returned for repair, or replacement with equivalent products at our discretion. The warranty covers parts and labor costs only. StarTech.com does not warrant its products from defects or damages arising from misuse, abuse, alteration, or normal wear and tear.

Limitation of Liability

In no event shall the liability of StarTech.com Ltd. and StarTech.com USA LLP (or their officers, directors, employees or agents) for any damages (whether direct or indirect, special, punitive, incidental, consequential, or otherwise), loss of profits, loss of business, or any pecuniary loss, arising out of or related to the use of the product exceed the actual price paid for the product. Some states do not allow the exclusion or limitation of incidental or consequential damages. If such laws apply, the limitations or exclusions contained in this statement may not apply to you.

Hard-to-find made easy. At StarTech.com, that isn’t a slogan. It’s a promise.
StarTech.com is your one-stop source for every connectivity part you need. From the latest technology to legacy products — and all the parts that bridge the old and new — we can help you find the parts that connect your solutions.
We make it easy to locate the parts, and we quickly deliver them wherever they need to go. Just talk to one of our tech advisors or visit our website. You’ll be connected to the products you need in no time.
Visit www.startech.com for complete information on all StarTech.com products and to access exclusive resources and time-saving tools.
StarTech.com is an ISO 9001 Registered manufacturer of connectivity and technology parts. StarTech.com was founded in 1985 and has operations in the United States, Canada, the United Kingdom and Taiwan servicing a worldwide market.