Key Digital KD-X444SP Manuale utente

521 East 3rd Street Mt. Vernon, NY 10553 • www.keydigital.com

Rev 1.0 –Apr, 2022

4K 18G HDMI over 50m CAT5e/6 Extender Set

with HDR, Power over Cat, IR or RS-232

521 East 3rd Street Mt. Vernon, NY 10553 • www.keydigital.com

Rev 1.0 –Apr, 2022

Table of Contents

About KD-X444SP 3

Application Diagram 4

Quick Connection Guide 5

Connections, LEDs, Rotaries & Switches 6

Rack Mounting 11

Specifications 11

Product Warnings & Safety Instructions 12

Operation Manual

Please visit www.keydigital.com for the latest product documentation,

firmware, control drivers and software downloads. Product features and

specifications are subject to change without notice

Always follow the instructions provided in this Operation Manual.

521 East 3rd Street Mt. Vernon, NY 10553 • www.keydigital.com

Rev 1.0 –Apr, 2022

About KD-X444SP

Key Digital® KD-X444SP is a 4K/UHD 18Gbps, HDCP2.2 compliant HDMI over CAT5e/6 Transmitter plus

Receiver set for extension of digital video signals with the latest standards in resolution, HDR, and Chroma

over a single CAT cable.

KD-X444SP extends video resolutions up to 4096x2160 at 60hz with 4:4:4 chroma sub-sampling over a

single CAT5e/6 cable up to 164ft (50m).

In addition to HDMI AV, KD-X444SP carries IR or RS-232 for controlling remotely located equipment. An IR

sensor and IR emitter are included, and the Tx unit’s IR Input port supports Serial IR input directly from a

control system / IR block. With Power over CAT (PoC), only one power supply is needed, and it may be

connected at either unit for ease of installation.

KD-X444SP features Key Digital’s proprietary Full Buffer Technology software suite, with EDID handshake

management, fixed hot plug detection, HDCP authentication to the connected source, and TMDS signal re-

clocking for installation with long cabling or many connectivity layers.

Key Features

•Single CAT5e/6 UTP/STP Extension: Fully automatic equalization, and amplification depending on

cabling length.

•4K Resolution Support: 4096x2160 or 3840x2160 24/25/30/60hz at 4:4:4 (signals up to 18Gbps

bandwidth).

•Flexible Power over CAT (PoC): Only one power connection needed. Tx may power Rx, or Rx may

power Tx.

•Visually Lossless Compression: 18G enabling technology applied to all video formats exceeding

10.2Gbps to accommodate transmission channel.

•Low Profile: Super slim chassis design.

•Signal Extension via CAT5e/6:

o4K/UHD (18G) and 1080p: Up to 164ft / 50m

•10G Pass-thru: Mode enables uncompressed 10.2Gbps signal extension.

•HDR10 (High Dynamic Range): More life-like images through a greater range of luminance.

•HDCP 2.2: Compliancy up to HDCP 2.x and backward compliant

•Deep Color Support: Up to UHD/4K 30Hz 4:4:4/12 bits or 60Hz 4:4:4/8 bit

•IR Sensor: Sensor powering via +5V on IR In ports collects line-of-sight IR from remote(s) without

external IR connecting block.

•Up/Down IR: Two channels of IR enable control to/from devices or control systems connected to Tx and

Rx units.

521 East 3rd Street Mt. Vernon, NY 10553 • www.keydigital.com

Rev 1.0 –Apr, 2022

•RS-232: Bi-Directional control to/from Tx and Rx unit on Phoenix connector..

•Full Buffer Technology: Key Digital’s proprietary suite of EDID, HDCP, TMDS, and HPD management

to overcome Pro AV installation obstacles.

•EDID Management: Internal library with 14 internal EDID handshakes including 4K with HDR in addition

to native EDID data copied from CAT5e/6 or HDMI pass-thru outputs.

•HDCP Authentication: HDCP sources are authenticated by HDCP key on transmit unit, for one-to-one

topology.

•Hot Plug Detection Control: Enables integrator to choose if active signal voltage is forced to

connected display/output device.

•TMDS Re-Clocking: Re-generation of TMDS (AV signal) channel data at Transmit unit for brand new

AV signal.

oSurround Audio Support: Up to Dolby®, DTS™ (formats up to 5.1/6.1)

Accessories

•1x 12V/2A, 24W DC Power Supply (Screw-

In Type). SKU: KD-PS12V2ASC

•4x Mounting Brackets

•1x IR Emitter

•1x IR Sensor

Application Diagram

521 East 3rd Street Mt. Vernon, NY 10553 • www.keydigital.com

Rev 1.0 –Apr, 2022

Quick Connection Guide

BeginwiththeTxandRxunitsandallinput/outputdevicesturnedoff withpowercablesremoved

1. Connect your HDMI source to the input port of the Tx unit.

2. Connect your HDMI display to the output port of the Rx unit.

3. Connect a CAT5e/6 cable between Tx and Rx unit. Use 568-B termination.

4. Connect IR emitter from the IR Out port of the Tx or Rx unit and mount over the IR receptor of the

device you wish to control.

5. IR Input is specific on the Tx and Rx unit.

a. The Tx unit supports hard-wired / serial IR connections only with the following pinout:

b. The Rx units supports connection with the included IR Sensor only. Mount the sensor in a

location to easily collect line of sight IR signals from remotes.

6. Connect RS-232 from your control system or computer.

a. TxD from the Controller connects into RxD of the extender

b. RxD from the Controller connects into TxD of the extender

c. Ground from the Controller connects into Ground of the extender

7. BEFORE connecting power supply to power outlet, screw-in the power supply to the Tx or Rx unit.

AFTER all connections are made, plug-in power supply to power outlet

8. Power on source and display

521 East 3rd Street Mt. Vernon, NY 10553 • www.keydigital.com

Rev 1.0 –Apr, 2022

Connections, LEDs, Rotaries & Switches

HDMI Input and Output

HDMI Input: Using a short HDMI cable, connect your source device.

HDMI Output: Using a short HDMI cable, connect your display device.

•For DVI-D/DVI-I sources or monitors,

use appropriate adapters. For Display

Port, use active converters.

•Supports up to UHD/4K @ 50/60 fps

[4:4:4], 18Gbps signals. See Supported

standard 4K Video Formats table

•Supports HDR10

•Compliant with HDCP 2.2 and previous

•Supports CEC and ARC pass thru from

HDMI Input to HDMI Pass-through port.

•HDMI Input & Pass-thru ports support

Dolby®, Dolby® TrueHD, DTS™ and

DTS-HD™ formats up to 7.1ch

•HDMI Output

CAT6/A Output and Input

Connect Tx unit’s CAT6/A Output port to Rx unit’s CAT6/A Input port using CAT5e/6 UTP or STP in 568-B

termination.

521 East 3rd Street Mt. Vernon, NY 10553 • www.keydigital.com

Rev 1.0 –Apr, 2022

•4K/UHD (18G) Extension

owith CAT5e/6: Up to 230ft / 70m

owith CAT6A STP: Up to 328ft / 100m

•1080p Extension

owith CAT5e/6: Up to 230 ft / 70m

owith CAT6A STP: Up to 328ft / 100m

•Supports Dolby®, DTS (5.1 formats max)

•Connect to KD-X444SP only. Damage will occur if connected to non-KD-X444SP products and warranty

will be void.

IR, RS-232 Ports and Selection Switch

Select RS-232 or IR control extension as desired. RS-232 and IR may not be extended simultaneously.

•If IR is selected, both IR In and IR Out ports may be utilized simultaneously.

•The Tx unit’s IR In supports a hard-wired / Serial IR from a control system / IR block only. The incoming

IR signal is output on the Rx unit’s IR Out port.

oPinout of Tx unit IR In port:

•The RX units IR In supports connection with the included IR sensor only. The incoming IR signal is

output on the Tx unit’s IR Out port.

•RS-232 control extension:

oTxD from the Controller connects into RxD of the extender

oRxD from the Controller connects into TxD of the extender

oGround from the Controller connects into Ground of the extender

521 East 3rd Street Mt. Vernon, NY 10553 • www.keydigital.com

Rev 1.0 –Apr, 2022

EDID Management Rotary

Use the EDID rotary if you wish for your source to output a

different video resolution and audio format

•The default EDID handshake setting is “A” (4Kx2K@60,

18G, HDR, 2ch audio).

•If setting 0 is selected, the Rx unit collects the EDID

handshake from the connected display and a handshake

is provided to the source that is similar to the EDID file of

the display, but within KD-X444SP’s capabilities.

•Although it is not necessary, power cycling the Tx unit and HDMI source may help the detection of the

newly selected handshake.

521 East 3rd Street Mt. Vernon, NY 10553 • www.keydigital.com

Rev 1.0 –Apr, 2022

Forced HPD Switch

Troubleshooting tool to help overcome installation obstacles.

•In cases of many connectivity layers or use with non-standard devices, hot plug detection (HPD) voltage

may be lost or drop below detectable levels and lead to a “no source connected” error message and/or

no image on the connected display.

•If set to ON, Hot Plug Detection (HPD) voltage is fixed at the HDMI connection of the Rx unit. The

connected display will be fed a constant voltage to inform the device that a partner is always connected

and active.

•If set to OFF, Hot Plug Detection (HPD) voltage is passed thru from connected source to the display

USB Service Port, Operate / FW Load Switch

Used for firmware updates only.

•Ensure that the Firmware Mode switch is set to Operate on the Tx and Rx units for proper functionality.

•Consult with Key Digital Technical Support (tech@keydigital.com) before upgrading firmrware.

•USB to RS-232 interface required. Not included.

521 East 3rd Street Mt. Vernon, NY 10553 • www.keydigital.com

Rev 1.0 –Apr, 2022

Power Connection

•12V/2A (24W) power supply

•Only one power connection needed. May be connected at Tx or Rx unit

•Flexible Power over CAT (PoC). Tx may power Rx, or Rx may power Tx.

•Not compatible with third-party PoC devices

LED Indicators

•Power (Green)

oSolid illumination during power on state, as provided by healthy connection with power supply

and healthy PoC extension.

oSteady blink if unit has a power short

•HDMI Link (Blue)

oTx Unit HDMI Input: Solid illumination from active signal from connected source

oRx Unit: Solid illumination from active incoming signal from the connected TX and active Hot

Plug Detection voltage from connected display/output device.

•Live (Yellow)

oSteady blink from healthy unit CPU state

•Video (Orange)

oIllumination with active TMDS (video + audio) signal is extended

oOff with no TMDS (video + audio) signal

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