StarTech.com VS421HDPIP User manual

Manual Revision: 03/22/2018
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
VS421HDPIP
4x1 HDMI Matrix Switch with Picture-in-Picture –
1080p
*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
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 modications 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.
Cet appareil numérique de la classe [B] est conforme à la norme NMB-003 du Canada.
CAN ICES-3 (B)/NMB-3(B)
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
Product Diagram ....................................................................................1
Front View .................................................................................................................................................... 1
Rear View...................................................................................................................................................... 1
Introduction............................................................................................2
Packaging Contents ................................................................................................................................. 2
System Requirements.............................................................................................................................. 2
Specications..........................................................................................3
Technical Support ..................................................................................4
Warranty Information............................................................................4

Instruction Manual
1
Introduction
Packaging Contents
• 1x 4-Port HDMI Switch w/PAP
• 1x Remote Control
• 2x Mounting brackets
• 1x Universal Power Adapter (NA/UK/EU)
• 1x Instruction Manual
System Requirements
• Up to 4 x HDMI-enabled Video Source Devices (i.e. computer, Blu-ray Player)
• Up to 1x HDMI-enabled Display Devices (i.e. television, projector)
• Up to 5x M/M HDMI cables for your display, and video sources

Instruction Manual
2
4
1
235
6
1
2
3
4
7
5
6
Product Diagram
Front View
1. IR Sensor
2. Power Button / LED
3. Menu Button / LED
4. Menu Operation Buttons / LEDs
5. Input Selection Buttons / LEDs
6. Picture-in-Picture Selection Buttons / LEDs (A-H)
7. All Display Operation Buttons / LEDs (E-H)
Back View
1. HDMI Input Ports
2. HDMI Output Port
3. LAN Port
4. USB Service Port
5. DB9 Service Port
6. Power Adapter Port

Instruction Manual
3
Hardware Installation
1. Connect up to four HDMI cables (not included) from each of your HDMI video
source devices (i.e. computers, Blu-ray Players) to each of the HDMI input ports on
the matrix switch.
2. Connect up to an HDMI cable (not included) from the HDMI output port on the
matrix switch to the HDMI input port on your display device (i.e. televisions,
projectors).
3. Connect the power adapter from an available power outlet to the Power adapter
port the Matrix switch.
4. (Optional) If you would like to control your Matrix Switch over your network,
connect a network cable (not included) from the LAN port on the matrix switch to
an available LAN port on your network device.
Hardware Operation
Full Screen Display Operation
1. Press the Output select button (that corresponds with the numbered output
display) you wish to select.
2. Your selected video input will now be displayed on your video output.
Dual Mode Picture-in-Picture Operation
1. Select your primary video input, by pressing the Output select button (that
corresponds with the numbered output display) you wish to select.
2. Press the Picture-in-Picture Selection Button (A through D) that corresponds with
your desired secondary video output.
Note: A through D represents video Inputs 1 through 4 respectively.
3. Your secondary display is displayed along with your primary display.
All Input Display Operation
1. Press the All Display button (E through H) that corresponds with your desired
display conguration.
2. All Video sources will now display in your desired video output.
Note: The Audio output will be the source device connected to Input 1.

Instruction Manual
4
On Screen Display Menu
The OSD menu gives you access to advanced functionality. The below table lists
each OSD menu option. The description eld outlines the functionality of each menu
selection.

Instruction Manual
5
Main Menu Sub Menu Sub
Menu Adjustments Default Description
I/O Setup
Output Resolution
480P, 579P,
720P50/60,
1080P24/25/
30/50/60,
1024x768,
1280x800,
1280x1024,
1366x768,
1440x900,
1600x900,
1600x1200,
1680x1050,
1920x1200,
NATIVE
720p60
Enables you
to select your
desired output
resolution.
Menu Back Returns to
main menu.
OSD Settings
Info display On/O O
H Oset 0~20 (5) 5 Enables you
to adjust the
specied
attributes in
relation to
the On the
Screen display
positioning
and operation.
Note: TIMEOUT
=OFF means
MENU and
INFO will
continue
showing on
the screen
V Oset 0~20 5
Timeout O~50 O
Gain 0~10 2
Menu Back Returns to
previous menu.
Menu Exit Returns to
main menu.

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Image Adjust
Brightness
Adjust
CH 1 0~100 50
Enables you
to adjust the
specied
attributes for
your desired
picture quality.
CH 2 0~100 50
CH 3 0~100 50
CH 4 0~100 50
Contrast
Adjust
CH 1 0~100 50
CH 2 0~100 50
CH 3 0~100 50
CH 4 0~100 50
Value Reset
Restores
default image
settings.
Menu Exit Returns to
Main Menu.
Window
Setup
Channel 1
Select
Size
CH1 Wxxx Hxxx
Enables you
to physically
dene the size
of the video
source on your
display.
Width Unit
Width Ten
Width Hundred
Height Unit
Height Ten
Height Hundred
Position
CH1 Hxxx Vxxx
Enables you
to physically
dene the
position of the
video source
on your display.
Horizontal Unit
Horizontal ten
Horizontal Hundred
Vertical Unit
Vertical Ten
Vertical Hundred

Instruction Manual
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Window
Setup
Channel 1
Select
Image
Output On/O On
Enables or
disables the
output of the
specic video
source.
Priority
CH1->4, CH2 -> 3,
CH 3->2, CH4->4
CH1->4,
CH2 -> 3,
CH 3->2,
CH4->4
Enables you
to dene the
device priority
for automatic
switching.
Window Reset
Restores
your default
settings for
the specied
source
device.
Menu Exit Returns to
Main Menu.
Channel 2
Select
Size
CH1 Wxxx Hxxx
Enables you
to physically
dene the
size of the
video source
on your
display.
Width Unit
Width Ten
Width Hundred
Height Unit
Height Ten
Height Hundred
Position
CH1 Hxxx Vxxx
Enables you
to physically
dene the
position of
the video
source on
your display.
Horizontal Unit
Horizontal ten
Horizontal Hundred
Vertical Unit
Vertical Ten
Vertical Hundred

Instruction Manual
8
Window
Setup
Channel 2
Select
Image
Output On/O On
Enables or
disables the
output of
the specic
video source.
Priority
CH1->4, CH2
-> 3, CH 3->2,
CH4->4
CH1->4,
CH2 ->
3, CH
3->2,
CH4->4
Enables you
to dene
the device
priority for
automatic
switching.
Window Reset
Restores
your default
settings for
the specied
source
device.
Menu Exit Returns to
Main Menu.
Channel 3
Select
Size
CH1 Wxxx Hxxx
Enables you
to physically
dene the
size of the
video source
on your
display.
Width Unit
Width Ten
Width Hundred
Height Unit
Height Ten
Height Hundred
Position
CH1 Hxxx Vxxx
Enables you
to physically
dene the
position of
the video
source on
your display.
Horizontal Unit
Horizontal ten
Horizontal Hundred
Vertical Unit
Vertical Ten
Vertical Hundred

Instruction Manual
9
Window
Setup
Channel 3
Select
Image
Output On/O On
Enables or
disables the
output of
the specic
video source.
Priority
CH1->4, CH2
-> 3, CH 3->2,
CH4->4
CH1->4,
CH2 ->
3, CH
3->2,
CH4->4
Enables you
to dene
the device
priority for
automatic
switching.
Window Reset
Restores
your default
settings for
the specied
source
device.
Menu Exit Returns to
Main Menu.
Channel 4
Select
Size
CH1 Wxxx Hxxx
Enables you
to physically
dene the
size of the
video source
on your
display.
Width Unit
Width Ten
Width Hundred
Height Unit
Height Ten
Height Hundred
Position
CH1 Hxxx Vxxx
Enables you
to physically
dene the
position of
the video
source on
your display.
Horizontal Unit
Horizontal ten
Horizontal Hundred
Vertical Unit
Vertical Ten
Vertical Hundred

Instruction Manual
10
Window
Setup
Channel 4
Select
Image
Output On/O On
Enables or
disables the
output of
the specic
video source.
Priority
CH1->4, CH2
-> 3, CH 3->2,
CH4->4
CH1->4,
CH2 ->
3, CH
3->2,
CH4->4
Enables you
to dene
the device
priority for
automatic
switching.
Window Reset
Restores
your default
settings for
the specied
source
device.
Menu Exit Returns to
Main Menu.
Label Select
VIDEO 1 Enables you
to specify
a label for
each video
output.
VIDEO 2
VIDEO 3
VIDEO 4
Menu Exit
Returns to
previous
menu.
Favours
Store
FAV 1 Store Enables you
to access
the save
and recall
features from
the OSD
menu.
FAV 2 Store
FAV 3 Store
FAV 4 Store
Menu Exit
Returns to
previous
menu.
Menu Exit Returns to
Main Menu.

Instruction Manual
11
Window
Convert
Channel 1
Convert
Mirror On/O O
Enables you
to mirror the
specied
video source
on your
display.
Fade In-
Out
O/1.0/1.1/1.2
Convert /1.3/1.4
/1.5/1.6/1.7/1.8/
1.9/2.0/2.1/2.2/
2.3/2.4/2.5/2.6/
2.7/2.8/2.9/3.0
O
Enables
you to
implement
transition
eects while
switching
between
video
sources.
Rotation R90/L90/Up-Side
Down180/O O
Enables you
to rotate the
video source
on your
display.
Window Reset
Restores
default
Convert
settings for
the specied
display.
Menu Exit
Returns to
previous
menu.
Channel 2
Convert
Mirror
Enables you
to mirror the
specied
video source
on your
display.
Fade In-
Out
O/1.0/1.1/1.2
Convert /1.3/1.4
/1.5/1.6/1.7/1.8/
1.9/2.0/2.1/2.2/
2.3/2.4/2.5/2.6/
2.7/2.8/2.9/3.0
O
Enables you
to implement
transition
eects while
switching
between
video sources.

Instruction Manual
12
Window
Convert
Channel 2
Convert
Rotation R90/L90/Up-Side
Down180/O O
Enables you
to rotate the
video source
on your
display.
Window Reset
Restores
default
Convert
settings for
the specied
display.
Menu Exit
Returns to
previous
menu.
Channel 3
Convert
Mirror
Enables you
to mirror the
specied
video source
on your
display.
Fade In-
Out
O/1.0/1.1/1.2
Convert /1.3/1.4
/1.5/1.6/1.7/1.8/
1.9/2.0/2.1/2.2/
2.3/2.4/2.5/2.6/
2.7/2.8/2.9/3.0
O
Enables you
to implement
transition
eects while
switching
between
video sources.
Rotation R90/L90/Up-Side
Down180/O O
Enables you
to rotate the
video source
on your
display.
Window Reset
Restores
default
Convert
settings for
the specied
display.

Instruction Manual
13
Window
Convert
Channel 3
Convert Menu Exit
Returns to
previous
menu.
Channel 4
Convert
Mirror
Enables
you to
mirror the
specied
video
source
on your
display.
Fade
In-Out
O/1.0/1.1/1.2
Convert /1.3/1.4
/1.5/1.6/1.7/1.8/
1.9/2.0/2.1/2.2/
2.3/2.4/2.5/2.6/
2.7/2.8/2.9/3.0
O
Enables
you to
implement
transition
eects
while
switching
between
video
sources.
Rotation
R90/L90/Up-
Side Down180/
O
R90/L90 /
Up-Side
Down180
/O
Enables
you to
rotate
the video
source
on your
display.
Window Reset
Restores
default
Convert
settings
for the
specied
display.

Instruction Manual
14
Chromakey
Setup
Minimum
For R 000~255 0
The Chromakey
Setup section
enables you to
isolate a particular
color for chroma
keying special
eects.
Maximum
For R 000~255 15
Minimum
For G 000~255 0
Maximum
For G 000~255 15
Minimum
For B 000~255 0
Maximum
For B 000~255 15
Switch O
Exit Returns to main
menu
Ethernet
Setup
IP Mode Static/DHCP DHCP
Enables you to
dene Network
communication
protocols for remote
operation.
Static Set IP/Mask/Gate
Byte1 High XXX 192 255
192 000~255
Byte2 XXX 168 255
168 000~255
Byte3 XXX 5 255 5 000~255
Byte4 Low XXX 159 0
254 000~255
Re-Link No/Yes
Exit
Static/
DHCP IP LINKED/NOT LINKED

Instruction Manual
15
Ethernet
Setup
IP IP/Mask/Gate
Mask XXX.XXX.XXX.XXX
Gate XXX.XXX.XXX.XXX
Mac XXX.XXX.XXX.XXX
Sink HDMI / DVI
Information
Model Enables you to
view the technical
specications of the
specied attributes.
Native
F/V Version
Menu Exit Closes OSD menu.
IR Remote Control Operation
An IR remote control is included with the VS421HDPIP for hassle-free remote
operation. Please review the legend below for a detailed description of each remote
control function.
1. Power: Press this button to switch on the device or press it again to set it to standby
mode.
2. Info: Press this button to show the device’s rmware version.
3. Input CH 1~4: Press these buttons to rotate HDMI 1~4 input source on each

Instruction Manual
16
channel to be
4. WA~WH: Press these hot keys to select the screen setting where WA~WD are display
a full screen of each channel and WE~WH are a dierent combination of a full screen
setting with all 4 channels.
Note: Functions are limited to Window A to D. The system will force to switch to
Window A when operate under Window E~H.
5. Mute: Press this button to disable the audio from HDMI output port.
6. & OK: Press this buttons to scroll through the OSD selection and press OK
to enter and conrm the setting.
7. Menu: Press this button to enter into the OSD menu.
8. Exit: Press this button to exit the OSD menu or the OSD settings.
9. FAV. 1~4: Press these buttons to bring up the customized screen settings.
10. Fade-In-Out: Press this button to switch on or o the Fade-in-out function.
11. Chromakey: Press this button to enter into Chroma function where CH 1 is the
background and CH 2 is the top image.
12. Mirror: Press this button to display the screen in mirror image.ç
13. Rotation: Press this button to rotate the image 90˚ left and right or 180˚ upside
down.
14. Audio 1~4: Press these buttons to select audio from HDMI input source 1~4.

Instruction Manual
17
RS232 Protocols
Baud Rate: 115200bps
Data Bit: 8 bits
Parity: None
Flow Control: None
Stop Bit: 1
RS232 Telent Commands
Note: All commands will be not executed unless followed with a carriage
return (0x0D) and commands are case-sensitive.
RESO 0~18
SET OUTPUT RESOLUTION
(0) 480p, (1) 576p, (2) 720p 50Hz, (3)
720p 60Hz, (4)
1080p 24Hz, (5) 1080p 25Hz, (6) 1080p
30Hz, (7) 1080p
50Hz, (8) 1080p 60Hz, (9) 1024x768
60Hz, (10) 1280x800
60Hz, (11) 1280x1024 60Hz, (12)
1366x768 60Hz, (13)
1440x900 60Hz, (14) 1600x900 60Hz,
(15)1600x1200
60Hz, (16) 1680x1050 60Hz,
(17)1920x1200 60Hz,
(18) Native
OSDDIS 0/1 ENABLE/DISABLE ONSCREEN DISPLAY
(0) OFF, (1) ON
OSDH 0~20 OSD H OFFSET
0~20
OSDV 0~20 OSD V OFFSET
0~20
OSDTIME 0~50 OSD TIMEOUT
0~50