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LDX-4P

Quad Head DVI-D, USB Keyboard, Mouse 

and Audio Extender Over CAT5e/6

Quick Start Guide

PART NO.

QTY DESCRIPTION

LDX-4P-TX

1

Quad DVI-D, USB 1.1, RS232,  

Audio over CAT5/5e/6 Transmitter

LDX-4P-RX

1

Quad DVI-D, USB 1.1, RS232,  

Audio over CAT5/5e/6 Receiver

Power Supply

2

PS5VD4A

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is subject to change without notice. Smart-AVI makes 

no warranty of any kind with regard to this material, 

including but not limited to, implied warranties of 

merchantability and fitness for any particular purpose.

Smart-AVI will not be liable for errors contained herein or for 

incidental or consequential damages in connection with the 

furnishing, performance or use of this material.

No part of this document may be photocopied, reproduced or 

translated into another language without prior written consent 

from Smart-AVI.

For more information, visit www.smartavi.com.

SmartAVI, Inc. / Twitter: @smartavi

2455 W Cheyenne Ave, Suite 112 

North Las Vegas, NV 89032

http://www.SmartAVI.com

Extend quad DVI-d, dual RS232,  

USB Keyboard, Mouse and Audio up to 

245 ft over dual CAT5/5e/6 cable

VIDEO

Format

DVI-D Single-link

Max. Pixel Clock

165 MHz

Input Interface (TX)

(4) DVI-D 29-pin female

Output Interface (RX)

(4) DVI-D 29-pin female

Resolution

Up to 1920 x 1200 @ 60 Hz

Up to 3840 x 2160 @ 30 Hz

DDC

5 volts p-p (TTL)

Input Equalization

Automatic

Input/Output Cable 

Length

Up to 20 ft

USB

Signal Type 

OHCI/UHCI (USB1.1)

Input Interface (TX)

(1) USB Type-B (female)

Output Interface (RX)

(2) USB Type-B (female)

RS232

Input Interface (TX)

(2) DB9 (female)

Output Interface (RX)

(2) DB9 (female)

Speed 

Up to 115 Kbps

AUDIO

Signal Type 

Stereo Audio

Bandwidth

15 MHz, 0dB

Impedance

100 Ohm

Connector

3.5 mini jack (female)

OTHER

Power Supply

External 100-240 VAC/5VDC4A

Dimensions

5.125” W x 1” H x 3.625” D

Weight

1 lb

Operating Temp.

32 to 131°F (0 to 55 °C )

Storage Temp.

-4 to 185°F (-20 to 85 °C )

Humidity

Up to 95%

Max Resolution Video 

Extension Distance

245 ft w/ CAT6 STP

ORDER INFO

Part No.

Description

LDX-4PS

Complete 1U Rackmount system to extend Quad 

DVI-D, USB Keyboard/Mouse, RS232 and Audio 

over CAT5e/6 cable, up to 245 ft. Includes:  

[LDX-4P-TX, LDX-4P-RX, and 2 x CCPWR06]

LDX-4P-TX

Quad DVI-D , USB 1.1 , RS232 , Audio over 

CAT5/5e/6  Transmitter. Includes: [LDX-4P-TX, 

PS5VD4A-WLLMNT]

LDX-4P-RX

Quad DVI-D , USB 1.1 , RS232 , Audio over 

CAT5/5e/6  Receiver. Includes: [LDX-4P-RX, 

PS5VD4A-WLLMNT]

What’s in the Box?

Technical Specifications

*

Designed and Manufactured in the USA

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