StarTech.com VS410RVGAA User manual

Manual Revision: 04/11/2012
For the most up-to-date information, please visit: www.startech.com
DE: Bedienungsanleitung - de.startech.com
FR: Guide de l'utilisateur - fr.startech.com
ES: Guía del usuario - es.startech.com
IT: Guida per l'uso - it.startech.com
NL: Gebruiksaanwijzing - nl.startech.com
PT: Guia do usuário - pt.startech.com
VS410RVGAA
4 Port VGA Video Audio Switch with RS232 control
*actual product may vary from photos

Instruction Manual
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 o 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 dierent from that to which the receiver
is connected.
• Consult the dealer or an experienced radio/TV technician for help.
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 acknowledgement 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.

Instruction Manual i
Table of Contents
Introduction ..............................................................................................1
Packaging Contents .............................................................................................................................1
System Requirements .........................................................................................................................1
Front View ...............................................................................................................................................2
Rear View .................................................................................................................................................2
Remote Control .....................................................................................................................................2
Installation ................................................................................................3
Hardware Installation ..........................................................................................................................3
How to Use ................................................................................................4
RS232 Serial Control ............................................................................................................................4
RS232 Pinout ..........................................................................................................................................4
Commands ..............................................................................................................................................4
Troubleshooting .......................................................................................5
Specications ............................................................................................7
Technical Support ....................................................................................8
Warranty Information ..............................................................................8

Instruction Manual 1
Introduction
This 4 Port VGA Video and Audio Switch lets you switch between four separate VGA signals,
as well as the corresponding audio, for output to a single display or projector.
An ideal solution for situations where VGA and audio input ports are scarce, the VGA switch
eliminates the hassle of having to swap out connections to your display and audio receiver,
while letting you select the video source at the push of a button.
The VGA switch also features convenient remote switching capability, through either
RS232 serial remote control or the included IR remote control - allowing you to switch
between VGA input signals from a distance and in turn providing a convenient addition to
presentation displays, trade shows, security environments and more.
Packaging Contents
• VGA Video Switch
• 3ft VGA Cable
• IR Remote Control
• Power Adapter
• Instruction Manual
System Requirements
• VGA enabled video source device (i.e. computer, DVR/PVR, etc.)
• VGA enabled display device (i.e. monitor, projector, etc.)
• Available AC electrical outlet

Instruction Manual 2
Front View
Rear View
Remote Control

Instruction Manual 3
Installation
Hardware Installation
1. Make sure all devices are powered o before beginning the installation.
2. Connect a male/male VGA cable from the “Output” connector on the switch to the VGA
connector on the display device (e.g. monitor).
3. Connect a male/male VGA cable from one of the VGA video sources (e.g. computer) to
input 1 on the video switch. Repeat for Port 2 ~ 4.
4. Connect the power adapter from an AC electrical outlet to the video switch. Press the
power button on the front panel. The Power LED and Port 1 Selection LED should light
up to indicate the currently active input.
5. Power on the display device rst, followed by the video source on port 1.
6. Once video output is conrmed, switch to the next port by pressing the front panel
button or remote control and power up the next video source. Repeat this process for
each video source.
7. To switch between the inputs on the switch, the front panel buttons or the IR remote
control can be used.
OPTIONAL: If using RS232 serial control, connect a DB9 (9-pin) serial cable from the DB9
connector on the video switch, to the RS232 serial port on the host system (i.e. computer).

Instruction Manual 4
How to Use
RS232 Serial Control
The video switch can be controlled from a remote terminal (e.g. computer) through RS232
serial. A DB9 (9-pin) cable needs to be connected between the video switch and the
remote terminal. A regular PC should be connect via straight-through male/female serial
cable.
Baud Rate: 9600 bps
Data Bits: 8
Parity: None
Stop Bits: 1
RS232 Pinout
VS410RVGAA
Pin Signal
1 NC
2 TxD
3 RxD
4 NC
5 GND
6 NC
7 NC
8 NC
9 NC
Commands
Command Description
“I” + “1” Select Port 1
“I” + “2” Select Port 2
“I” + “3” Select Port 3
“I” + “4” Select Port 4
“P” +”1” Power On video switch
“P” + “0” Power O video switch

Instruction Manual 5
Troubleshooting
Symptom Solution
Remote Control does not work/
stopped working
Make sure the front panel of the video switch is not
blocked or obscured by other objects.
Make sure you are pointing the remote control
directly at the front panel of the video switch.
Try switching using the buttons on the front panel
of the video switch:
If this works correctly, replace the battery (CR-23) in
the remote control.
If this does not work, the video switch has locked
up (see below).
No video
Check the front panel of the video switch to make
sure the correct input is selected.
Make sure the video source connected to the input
is turned on or awake.
Make sure that the monitor/display is set to the
VGA input.
If the video source has multiple outputs (e.g.
laptop), make sure the VGA port is active.
Check that the VGA cables are securely connected:
Between the video source and the input on the
video switch.
Between the monitor/display and the output on
the video switch.
Connect the display directly to the video source to
make sure the output video resolution is supported
by the display (e.g. 1920x1200 or 1080p).
Ensure this video resolution is also supported by
the video switch.
If all other checks fail, try replacing the VGA cables.
Video is blurry and/or has bad color
Check that the VGA cables are securely connected:
Between the video source and the input on the
video switch.
Between the monitor/display and the output on
the video switch.
Try replacing the VGA cables.

Instruction Manual 6
Symptom Solution
Image is not centered properly on
the monitor/display
Turn the display o, then back on.
Look for an auto adjust button or setting on the
display.
Make sure the video source is outputting a
standard video resolution that is supported by the
video switch and the display.
Manually adjust the vertical and/or horizontal
positioning from the display’s on screen menu.
Try replacing the VGA cables.
No audio
Check that the audio cables are securely
connected:
Between the audio source and the input on the
video switch.
Between the speakers and the output on the video
switch.
Check that the audio source is outputting sound by
plugging in speakers or headphones directly to the
audio source
Try replacing the audio cables.
The video switch is locked up
Unplug the power adapter from the video switch
or electrical outlet, wait 20 seconds, then plug the
power adapter back in.

Instruction Manual 7
Specications
Video Signal VGA (RGBHV): 0.7Vp-p or 1Vp-p with sync
75 Ohm
External Connectors (Input)
4 x DE-15 VGA female
4 x 3.5mm Audio mini-jack female
1 x DB9 female
1 x DC Power female
External Connectors (Output) 1 x DE-15 VGA female
1 x 3.5mm Audio mini-jack female
LEDs 1 x Power
4 x Port Selection Indicator
Maximum Video Resolution 1920 x 1200 / 1080p
Video Bandwidth 650 MHz (-3dB)
Dierential Gain 0.05%
Dierential Phase 0.05 degrees
Switching Methods Front Panel Buttons, IR Remote Control,
RS232 Serial
Power Consumption 5W (max)
Power Adapter 5VDC, 2600mA, center positive
Enclosure Material Aluminum
Dimensions (LxWxH) 292.0mm x 73.0mm x 44.0mm
Weight 1500g