NTI SE-DVI-2A User manual

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INSTALLATION GUIDE FOR THE
2/4/8-PORT DVI VIDEO/AUDIO
SWITCH
SE-DVI-2A / SE-DVI-4A / SE-DVI-2ARS /
SE-DVI-4ARS/SE-DVI-8ARS
INTRODUCTION
The VIDMUX® DVI/HDMI video/audio switch (VIDMUX) enables one DVI/HDMI display and speakers to be switched between up
to eight single-link digital DVI/HDMI video sources.
•Supports DVI interface for crisp and clear video quality on flat panel display.
•Supports HDTV resolutions up to 1080p and computer resolutions to 1920x1200 (WUXGA).
•Eliminates redundant video displays.
•Compliant with HDMI 1.3 and HDCP standards.
•Supports the DDC2B protocol.
•3.5mm stereo audio input for each channel.
•Passes HDMI audio signal through DVI-I port.
oTransmit audio and video over a single cable with the DVI-HDMI-xx-MM male DVI-D to male HDMI cable.
•Control via push button, infrared remote (IR) control, or optional RS232.
•IR remote control includes power ON/OFF, mute function, and break-away audio (switch audio independent of video).
Optional: RS232 Control in models with “RS” (i.e. SE-DVI-2ARS).
Front and Rear View of
SE-DVI-4ARS

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MATERIALS
Models SE-DVI-2/4A(RS)
Materials supplied with this kit:
•VIDMUX DVI/HDMI Video/Audio Switch
•110-240VAC, 50 or 60Hz-5VDC/1A AC Adapter
•6” Male-to-Male stereo audio cables (2pcs-2 port, 4pcs-4 port)
•Infrared Remote Control (RS models only)
•CD containing a pdf of this manual and an RS232 program
Model SE-DVI-8ARS
Materials supplied with this kit:
•VIDMUX DVI/HDMI Video/Audio Switch
•110-240VAC, 50 or 60Hz-5VDC/1A AC Adapter
•5 Foot CAT5e patch cable
•RJ45-DB9F Serial Adapter (CT6182)
•Infrared Remote Control
•CD containing a pdf of this manual and an RS232 program
Materials Not supplied but REQUIRED:
•DVI-IS-xx-MM DVI-I cable to connect a DVI-D source or display
•SA-xx-MM Male to Male Stereo Audio cable to connect an audio source
•DVI-HDMI-xx-MM DVI-D to HDMI interface cable to connect the video source or display with integrated speakers

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INSTALLATION
1. Turn OFF power to video source(s), display and speakers.
FOR MODEL SE-DVI-2/4A
2. Connect the video port of one DVI video source to the “DVI IN 1” port on the unit using a DVI-IS-xx-MM cable (xx= 3, 6, and 10
foot lengths- sold separately.) Repeat for each video source, connecting to each “DVI IN x” port.
3. Connect the stereo audio port of an audio source to the “AUDIO IN 1” port on the unit. Six inch cables are supplied, but for
longer cable use SA-xx-MM (xx= 3, 6, 10, 15, 25, 25, 50, and 100 foot lengths- sold separately). Repeat for each audio
source, connecting to each “AUDIO IN x” port.
4. Connect the monitor using a DVI-HDMI-xx-MM cable to the “DVI OUT” port on the unit (xx- 3, 6, 10 and 15 foot lengths- sold
separately).
Note: If speakers are not built into your display, connect your self-powered stereo speakers to the “Audio Out” port.
Figure 1- Cable connections to the VIDMUX
5. Secure the power cable to the cable tie on the VIDMUX and connect the power plug from the AC adapter to the
connection port.
6. Plug in the AC adapter and power-up the switch. To switch ON, press and hold the “Source Select” (or “AV Sync”) button for
5 seconds until the “DVI 1” LED and “AUD IN 1” LED on top of the VIDMUX illuminates, indicating a connection between the
display and the video and audio source connected to “DVI IN 1” and “AUD IN 1”. To switch OFF, press and hold the “Source
Select” (or “AV Sync”) button again for 5 seconds.
Note: If the RS232 feature is present, the VIDMUX will switch ON automatically when power is applied.

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7. Apply power to the video and audio sources and display.
Figure 2- Connect AC adapter to VIDMUX
FOR MODEL SE-DVI-8ARS
2. Connect the video port of one DVI video source to the “DVI” port in any of the numbered port groups 1-8 using a DVI-IS-xx-
MM cable (xx= 3, 6, and 10 foot lengths- sold separately.) Repeat for each video source, connecting to any remaining numbered
“DVI-I” port groups.
3. Connect the stereo audio port of an audio source to any green port with a “ “ (headphones) symbol next to it in any of
the numbered port groups. Use SA-xx-MM (xx= 3, 6, 10, 15, 25, 25, 50, and 100 foot lengths- sold separately). Repeat for
each audio source, connecting to other numbered green headphone ports.
4. Connect the microphone port of an audio source to any orange port with a “ “ (microphone) symbol next to it in any of
the numbered port groups. Use SA-xx-MM (xx= 3, 6, 10, 15, 25, 25, 50, and 100 foot lengths- sold separately). Repeat for
each audio source, connecting to other numbered orange microphone ports.
5. Connect the monitor using a DVI-HDMI-xx-MM cable (xx- 3, 6, 10 and 15 foot lengths- sold separately). to the “DVI I” port in
the grey “DEVICE” section on the unit.
6. Connect self-powered speakers or headphones to the green headphone port in the “DEVICE” section.
7. Connect a microphone to the orange microphone port in the “DEVICE” section.

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Figure 3- Connections to an SE-DVI-8ARS

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SWITCH CONTROL
The VIDMUX can be controlled using either the
“AV Sync” button on the top (SE-DVI-2/4A models only)
“Source Select” button on the front (SE-DVI-2/4ARS models only)
“Audio” and “Video” front panel buttons (SE-DVI-8ARS model only)
Infrared Remote Control
RS232 Control (SE-DVI-2/4/8ARS models only)
PUSH BUTTON CONTROL
2- and 4-Port Models
The push button on the VIDMUX (“AV Sync” or “Source Select” depending upon your model) will change the connected input to
the next consecutive input (video and audio together) with each press. To switch video or audio separately, use the infrared
control.
8-Port
The push buttons on the front of the SE-DVI-8ARS (“Audio” or “Video”) enable you to switch the video and audio independently.
When switching audio, the microphone and speaker ports will switch together. To switch video and audio together, press the
“Sync” button (the Sync LED will illuminate). The buttons associated with the active ports will illuminate. To power cycle the
SE-DVI-8ARS, press the “Reset” button.
“AV Sync”
Button “Source Select” Button
SE-DVI-4ARS
Front View
SE-DVI-2A
Front View
SE-DVI-8ARS
Front and Rear View
“Audio” and
“Video” Buttons

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INFRARED CONTROL
The infrared remote control can be used to change connections or disconnect video and
audio altogether.
2/4 Port Models
Press “Power Off” to blank the video to the DVI OUT port and mute the AUDIO OUT signal.
Press “Power On” to restore video and audio connections.
Press “Mute” to disrupt the AUDIO OUT signal, and press any button in the Audio column to
restore audio, or press “Mute” again.
Press any button in the Video or Audio column to switch the respective input to the output.
Video and audio inputs will change independently.
8 Port Models
Use the upper buttons to make connection to a video input.
Use the lower buttons to make connection to an audio input, independent
of the video input.
Use the Sync button (press to toggle On/Off) to force the switch to synchronize
video and audio changes to happen together.
Use the Volume Adjust button (blank white button) to control the audio volume.
Press repeatedly to increase to maximum and then decrease.

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RS232 CONTROL(SE-DVI-2/4/8ARS Only)
RS232 Control enables the SE-DVI-xARS to be remotely controlled via RS232. To control the SE-DVI-xARS via RS232 the user
has three options:
•write a program that runs on a PC using the Command Protocol (below)
•use the NTI Switch Control Program (page 10) provided on the CD
•use the SerTest program (page 10) provided on the CD
If your VIDMUX includes the RS option, a terminal can be connected to it to control the VIDMUX using RS232 control from a
separate user terminal or CPU with a terminal program. To make a terminal connection, connect a serial cable (specifications on
page 3) between the user terminal and the 9 pin DIN female connector on the VIDMUX labeled "RS232". Configure the terminal
program for the default baud rate of 9600.
Figure 4- Connect Terminal to VIDMUX with RS232 Support
Figure 5- Connect Terminal to 8-port VIDMUX

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RS232 CONNECTOR (9DB FEMALE)
PIN SIGNAL FUNCTION
1 CD Carrier Detect
2 TXD Transmit data (RXD at host)
3 RXD Receive data (TXD at host)
4 DTR Data terminal ready
5 GND Signal ground
6 DSR Data set ready
7 RTS Request to send
8 CTS Clear to send
9 - No connection
REMOTE CONNECTION
The RS232 Interface is designed to meet the RS232C standard and can be controlled from any CPU or other controller with an
RS232 communications port. The pin-out for the 9DB connector on the unit is as follows:
On the 9DB female connector, pins 1 (DCD), 4 (DTR), and 6 (DSR) are shorted and pins 7 (RTS) and 8 (CTS) are shorted.
Therefore, host handshaking is bypassed and TXD and RXD are the only active signals. A straight-through 9DB serial cable (not
null modem) will work for most CPUs.
COMMAND PROTOCOL
CPU controller commands supported by the unit are defined below. All commands should be terminated with a <CR> (carriage
return). All characters in the command string should be upper case, and all numbers below 10 should have a leading 0
(ex: 1 = 01).
Legend: (All numbers must be two digits)
BR : Baud Rate Code (12,24,48,96)
IP : Input Port (01,02…..08)
<CR> : Carriage Return (Hex 0xD)
Command Definitions
Command
String Good Response Description
CS 01,IP,01 *<CR> Connect Video Output to Specified Video Input Port
AS 01,IP,01 *<CR> Connect Audio Output to Specified Audio Input Port
RO 01,01 *<CR>IP<CR> Read Video Input Connection to the Output Port
AO 01,01 *<CR>IP<CR> Read Audio Input Connection to the Output Port
PO 01,01 *<CR>string\0<CR> Power On Outputs (2 and 4 port models only)
PF 01,01 *<CR>string\0<CR> Power Off Outputs (2 and 4 port models only)
AM 01 *<CR> Mute Audio Input (2 and 4 port models only)
CB 00,BR None Change baud rate of serial line BR=12(00),24(00),48(00),96(00)
Factory default is 9,600 (see note below)
RS 01 *<CR> Internal Reset (2 and 4 port models only)
RV 01 *<CR>string\0<CR> Read NTI Version String
RU 01 *<CR>IP,01<CR> Read Unit Size
SY 01 sync audio and video port changes together (toggle function) (8 port
model only)
AV 01 audio volume control ramps a single tick up to top then down(8 port
model only)
If the syntax of a command is incorrectly entered, the command will be ignored or the switch will answer with a bad response
?<CR>.
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Note: The baud rate as changed via RS232 will hold only until the VIDMUX is power cycled. On power-up, the VIDMUX
will resume the default baud rate of 9600.
Note: If the baud rate of the VIDMUX is changed from 9600, be sure to change the baud rate of the user terminal as well.
Note: Each time the VIDMUX is power-cycled, it will connect the video to “DVI IN 1” and the audio to “AUD IN 1” by
default.
Note: If the Input to Output connection is changed using the infrared control or the push button method, the RO and AO
commands may not report back accurate connection information.
NTI Switch Control Program For Windows 9X, NT, 2000, XP and 7
The NTI Switch Control Program is an easy and powerful graphical program that controls NTI switches through an RS232
interface. The NTI Switch Control Program is included on the manual CD packaged with the SE-DVI-xARS. The NTI Switch
Control Program can be downloaded to your computer by clicking on the link "Download NTI Switch Control Program" found on
the web page that appears when you insert the instruction manual CD into your CD ROM drive.
To install the NTI Switch Control Program after downloading it to your computer from the manual CD:
1. Locate the Setup.exe in the directory the program was downloaded to and double-click on it
2. Follow the installation instructions on the screen
The NTI Switch Control Program performs best on monitors set to a screen resolution of at least 800 X 600. Instruction for using
the NTI Switch Control Program is available by opening "MSCP Help" in the "NTI" program group once the program has been
installed and is open on the screen.
To open "MSCP Help" from the Windows desktop:
1. Click on START
2. Click on PROGRAMS
3. Click on NTI
4. Click on MSCP Help
SerTest- RS232 Interface Test Program
This software allows a user to test the functions of an NTI server switch, matrix switch, Ethernet switch, or Multi-user/Multi-
platform switch RS232 interface. The program SERTEST along with the NTI Switch Control Program (above) is installed from
the CD packaged with this switch. SERTEST generates a main menu with the 4 selections described below:
Main Options
•Switch Operations - send commands to the SE-DVI-xARS
•Ethernet Operations - set Ethernet connection variables (not applicable to this switch)
•Setup Options - set COM port, baud rate, and unit address
•About SerTest - display the program version
Switch Operations
Key Selection Description
1) Connect Video Output/User to an Input/CPU - connect an output (COMMON) to an input(SELECTABLE)
2) Connect All Video Outputs/Users to an Input/CPU - connect all outputs to an input
3) Connect Audio Output/User to an Input/CPU - connect an output to an input (audio ports only)
4) Connect All Audio Outputs/Users to an Input - connect all outputs to an input (audio ports only)
5) Change Mute Status for Audio Output/User - mute or un-mute the Audio port output
Selections in the "Key" column that are gray are not applicable to this product.

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Key Selection Description
6) Change Volume for Audio Output/User - change Audio port output volume
7) Read Connection for Video Output/User -read the connection of a specific video output (COMMON (01))
8) Read Connection for Audio Output/User -read the connection of a specific audio output
9) Read Mute and Volume for Audio Output/User - read the volume and the mute status of the specified audio output
a) Save I/O Connections into Unit Memory -save the connections into switch memory bank
b) Restore I/O Connections from Unit Memory -restore the connections from switch memory bank
c) Change All Units Baud Rate (9600/COM1:) -change RS-232 Baud rate of all switches
-the current baud rate and serial port are displayed in parentheses
d) Reset Unit - send a reset command to the switch
- the current unit address is displayed in parentheses
e) Reset All Units - send an internal reset command to all switches
f) Read Unit Size - read the switch size (number of inputs and outputs)
g) Read Unit Version/Revision String -read a string containing the switch version, type, and size
h) Save All Units I/O Connections into Units Memory -save the connections into switch memory bank, command for all
switches
i) Restore All Units I/O Connections from Units
Memory -restore the connections from switch memory bank, command for all switches
Selections in the "Key" column that are gray are not applicable to this product.
Setup Options
Key Selection Description
1) select Com port current:
(COM1:) - select PC serial port
- the current PC serial port is displayed in parentheses
2) select Baud rate current:
(9600) - select PC serial port baud rate
- the current baud rate is displayed in parentheses
3) set unit Address current:
(1) - select the unit address
- the current address is displayed in parentheses
For any selection that requires user input, the user is prompted. When commands are sent to the switch, the command string and
switch responses are echoed to the screen. All commands generated by the program are formatted according to the information
provided in sections above. If any transmission problems are detected, an error message is displayed.
Press <Esc> or <Enter> to back out to the main menu and press again to exit.

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SPECIFICATIONS FOR STRAIGHT-THROUGH RS232 SERIAL CABLE
VIDMUX to PS2 CPU (9 PIN)
VIDMUX PS/2 CPU
9 pin Signal 9 pin
Function Pin # Direction Pin # Function
RxD 3 3 TxD
TxD 2 2 RxD
CTS 7 7 RTS
RTS 8 8 CTS
DSR 4 4 DTR
DTR 6 6 DSR
SG 5 5 SG
Terminals 7 and 8 are jumpered together and terminals 4 and 6 are jumpered together.
TECHNICAL SPECIFICATIONS
Video Input Female DVI-I connectors- supports single link DVI sources
Audio Input 3.5mm stereo audio jacks
Video Output Connector 1-Female DVI-I connector - supports single link DVI-D Signal
Resolutions supported HDTV- to 1080p
Computer- 1920X1200 (WUXGA)
Audio Output Connector 1- 3.5mm Stereo Audio Jack
RS Control DB9 Female connector
Baud Rates 1200 through 9600
Power 120VAC or 240VAC@50 or 60Hz-5VDC/1.0A AC Adapter
WARRANTY INFORMATION
The warranty period on this product (parts and labor) is two (2) years from date of purchase. Please contact Network
Technologies Inc at [phone] (800-RGB-TECH) in the U.S. and Canada or 330-562-7070 (worldwide) for information
regarding repairs and/or returns. A return authorization number is required for all repairs/returns.
COPYRIGHT
Copyright 2011, 2014 by Network Technologies Inc. All rights reserved. No part of this publication may be reproduced, stored in
a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise,
without the prior written consent of Network Technologies Inc, 1275 Danner Drive, Aurora, OH 44202.
CHANGES
The material in this guide is for information only and is subject to change without notice. Network Technologies Inc reserves the
right to make changes in the product design without reservation and without notification to its users.
MAN132 Revised 7/10/14
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