Presentation Switchers PS190 User manual

Users Guide
PS190
September, 2015 • PN: DOC-000025-01a
Presentation
Switchers
digital presentation systems

Page 2 Presentation Switchers, Inc.
Trademark Informaon
Presentaon Switchers®, the “PS Box” logo or icon, and the names and marks associated with Presentaon
Switchers’ products are trademarks and/or service marks of Presentaon Switchers, Inc., and are registered
and/or common-law marks in the United States and various other countries.
All other trademarks are the property of their respecve owners.
Patent Informaon
The accompanying product is protected by one or more U.S. and foreign patents and/or pending patent
applicaons held by Presentaon Switchers, Inc.
Customer Feedback
We are constantly working to improve the quality of our documentaon, and we would appreciate your
feedback. Please send email to sales@PSwitchers.com.
© 2015 Presentaon Switchers, Inc. All rights reserved.
Presentaon Switchers, Inc.
2324 Cheney-Spokane Road
Cheney, WA 99004 USA
No part of this document may be reproduced or transmied in any form or by any means, electronic or
mechanical, for any purpose, without the express wrien permission of Presentaon Switchers, Inc.
Under the law, reproducing includes translang into another language or format. As between the pares,
Presentaon Switchers, Inc., retains tle to and ownership of all proprietary rights with respect to the
soware contained within its products. The soware is protected by United States copyright laws and
internaonal treaty provision. Therefore, you must treat the soware like any other copyrighted material
(e.g., a book or sound recording).
Every eort has been made to ensure that the informaon in this manual is accurate. Presentaon Switch-
ers, Inc., is not responsible for prinng or clerical errors.
Informaon in this document is subject to change without noce.

Page 3PS190 Users Guide
Contents
Contents��������������������������������������������������������������������������������������������3
Introduction���������������������������������������������������������������������������������������4
Introducing the PS190 - 5 X 1 HDMI Auto-Switcher with Integrated Audio
Mixer, Injector, & Stereo Output ��������������������������������������������������������������������� 4
Getting to Know the PS190����������������������������������������������������������������������������� 4
Front View ������������������������������������������������������������������������������������������������������� 4
Back View ������������������������������������������������������������������������������������������������������� 4
Installation�����������������������������������������������������������������������������������������5
Connecting Input Devices������������������������������������������������������������������������������� 5
Compatible Input Devices ������������������������������������������������������������������������������� 5
HDMI Extenders���������������������������������������������������������������������������������������������� 5
Connecting the Display����������������������������������������������������������������������������������� 6
Compatible Displays ��������������������������������������������������������������������������������������� 6
Image Resolutions ������������������������������������������������������������������������������������������ 6
Stereo Audio (Line) Input �������������������������������������������������������������������������������� 6
Stereo Audio Output���������������������������������������������������������������������������������������� 6
RS-232 Communication Interface ������������������������������������������������������������������ 7
RS-232 Port Pinout ����������������������������������������������������������������������������������������� 7
RS-232 Communication Settings�������������������������������������������������������������������� 7
Power ���������������������������������������������������������������������������������������������������������������� 7
Basic Operation��������������������������������������������������������������������������������8
Auto-Sense, Auto-Switching��������������������������������������������������������������������������� 8
Automatic Display On/O ������������������������������������������������������������������������������� 8
Changes to the PS190��������������������������������������������������������������������10
RS232/DB9 Cable Pin-Out����������������������������������������������������������������������������� 10
Making a Switch / Selecting an Input to Display����������������������������������������� 11
Adjust Volume������������������������������������������������������������������������������������������������ 11
Input Device Gain Adjustments�������������������������������������������������������������������� 11
Audio Line Input Mix ������������������������������������������������������������������������������������� 12
Change Display Resolution �������������������������������������������������������������������������� 12
EDID Table Settings �������������������������������������������������������������������������������������� 13
Auto-Switch On / O�������������������������������������������������������������������������������������� 13
Display Control ���������������������������������������������������������������������������������������������� 14
Display On / O���������������������������������������������������������������������������������������������� 14
Freerun On / O ��������������������������������������������������������������������������������������������� 14

Page 4 Presentation Switchers, Inc�
Introducing the PS190 - 5 X 1 HDMI Auto-Switcher
with Integrated Audio Mixer, Injector, & Stereo Output
The PS190 allows 5 HDMI sources to share one display or projector with resolu ons up to
UHDTV (3840x2160). The 3.5mm stereo input port allows line level microphone or mobile
device to be mixed with audio extracted from the selected HDMI input then re-injected into the
HDMI stream. An RCA stereo output provides a pre-ampli ed output for local speakers if the
volume from the display is inadequate or if ADA assisted listening equipment is required. The
system’s auto-sense, auto-switch feature combined with the automa c integrated display power
on and o makes this solu on extremely easy to use. For installs that require Crestron, AMX, or
other 3rd party control systems, an RS-232 connector is provided for power, source selec on,
and volume control.
Getting to Know the PS190
Front View
Back View
Introduction
Connect Sources Devices Here
USB Firmware Update
Power and Power
Indicator
Stereo Input Port
Stereo Output
Communication Port
Display Output

Page 5PS190 Users Guide
Installation
Connecting Input Devices
Input or source devices are connected on the back side of the PS190 using the HDMI connectors
labeled “Input 1” through “Input 5”. See image call-out on Page 4 of this manual.
Compable Input Devices
PS190 compable devices must support the HDMI signal format. These physical devices may be
any of the following:
• A nave HDMI device
• A DVI-D or DVI-I device using a DVI to HDMI cable
• A DisplayPort device using a DisplayPort to HDMI cable
• A MDL mobile device using a MDL to HDMI cable
The PS190 also supports indirect connecons. The input device may be connected to a
connecvity box such as Extron® Cable Cubby™ or Alnex® Tilt ‘N Plug™ rst before being
connected to the PS190.
HDMI Extenders
The input may also be indirectly connected using an HDMI extender. By default, the PS190 keeps
its display informaon (EDID) local to each input. There is very lile delay from the me an input
device asks for the display informaon to the me the informaon is sent. A device connected
to an extender may “me-out” waing for a response from the display device. If a me-out
occurs, the input device will not send its content. It is important to use high quality extenders so
any delay caused by the extender technology is minimized and me-outs are less likely to occur.
The PS190 has a “pass through” mode that passes all display informaon requests directly to
the display. If this feature is enabled and the system is congured with extenders on the input
and output ports of the PS190 it is possible to have me-outs on certain input devices.

Page 6 Presentation Switchers, Inc.
Connecting the Display
Displays (or other output devices) are connected on front side of the PS190 on the HDMI
connector labeled “Video Output”. See image call-out on Page 4 of this manual.
Compable Displays
PS190 is compable with nave HDMI, DVI, or DisplayPort displays.
Image Resoluons
The PS190 supports resoluons up to UHDTV (3840 x 2160 @ 30Hz [4:2:2] or 60Hz [4:2:0]), all
HDTV resoluons, and VESA monitor resoluons up to 1920 x 1200.
Stereo Audio (Line) Input
Connect the audio from a mobile device or wireless microphone system (line level) to the
3.5mm stereo jack of the PS190. See image call-out on Page 4, “Stereo In”.
The audio from this connector is automacally mixed and sent to the HDMI display and stereo
output. Gain adjustments are available through the RS-232 interface.
Stereo Audio Output
If external speakers are required, connect an RCA cable from the PS190 “Stereo Out” connectors
to your amplier or powered speakers. See image call-out on Page 4, “Stereo In”.
The stereo output is a mix of program audio (audio extracted from the selected HDMI input)
and stereo audio line input (3.5mm jack). The default mix and level should be adequate for most
installaons. However, gain and volume level adjustments are available through the RS-232
interface.

Page 7PS190 Users Guide
235
235
COMPUTER SWITCHER
STRAIGHT THROUGH
SERIAL CABLE
RS-232 Communication Interface
The PS190 uses an RS-232 serial interface to change aributes and behavior of the PS190. The
communicaon parameters are as follows: 115200 baud, 8 bit, no parity, and 1 stop bit. The
baud rate is xed and unchangeable. Pins 2 (Rx), 3 (Tx), and 5 (GND) are used.
RS-232 Port Pinout
Computer PS190
Pin 2 Pin 2
Pin 3 Pin 3
Pin 5 Pin 5
RS-232 Communication Settings
Baud Rate 115,200 Fixed
Packet Size 8 Bit
Parity None
Stop Bit 1
See Page 10 for more detailed discussions on RS-232 commands and/or review the
PS190 Programming Guide.
Power
Using the AC to DC power supply shipped with the PS190, connect the round connector to the
PS190. The Power Indicator LED will illuminate above of the DC/5V locaon to indicate that
power is being received.

Page 8 Presentation Switchers, Inc.
Basic Operation
In most situaons, the PS190 performs exceponally right out of the box. Simply hook up the
input devices and display in any order, power up the system. The PS190 will begin in an auto-
sense, auto-switching mode with audio output and display control enabled. Keep in mind that
features can be turned on and o using the RS-232 interface. See Page 10 for more informaon.
Two key features of the PS190 are related to automaon: auto-switching and display
management.
Auto-Sense, Auto-Switching
Auto-sense, automac switching (ASW) is a very powerful feature of the PS190 and will be
explained further to best understand how it can be ulized. ASW is enabled by default and can
be disabled using the RS-232 interface.
The PS190 is very sensive. When a user connects a device to one of the 5 HDMI input ports,
the PS190 responds immediately by roung the video from the newly connected device to the
display. If the color space is dierent than the display, color is automacally converted internally
to ensure the highest quality image is displayed at the highest resoluon praccable.
If another person connects a computer or mobile device to an HDMI input port, that device will
immediately appear on the display. The rule is: The last to connect will always appear on the
display.
Should an acvely displayed device be disconnected, the PS190 will search from input 1 through
input 5 for the rst acve signal. Once found, the image from that device will appear on the
display. From a design standpoint, consider having the home room computer on input 1 and any
ancillary or guest connecons on inputs 2 through 5.
Automatic Display On/O
Automac display on/o (CEC) is another powerful feature of the PS190. CEC is enabled by
default but can be disabled using the RS-232 interface.
CEC must be enabled on the display itself for this feature to work with the PS190.
Trade names for CEC are Anynet+ (Samsung), Aquos Link (Sharp), BRAVIA Link and BRAVIA
Sync (Sony), HDMI-CEC (Hitachi), E-link (AOC), Kuro Link (Pioneer), INlink (Insignia), CE-Link
and Regza Link (Toshiba), RIHD (Remote Interacve over HDMI) (Onkyo), RuncoLink (Runco
Internaonal), SimpLink (LG), T-Link (ITT), HDAVI Control, EZ-Sync, VIERA Link (Panasonic),
EasyLink (Philips), and NetCommand for HDMI (Mitsubishi).

Page 9PS190 Users Guide
If a user connects to the PS190, the PS190 will automacally turn the display on. When the last
person disconnects, the PS190 will wait 30 seconds of inacvity then turn o the display. In
many cases, this feature eliminates the need for television remotes, extends display life, saves
power, and simplies classrooms, conference rooms, and huddle spaces, making them more
user friendly.

Page 10 Presentation Switchers, Inc.
Changes to the PS190
The PS190’s RS-232 interface allows users and integrators the ability to control switching and
change the behavior of the PS190. This secon will describe the commands that are available
and detail their aect on the system.
RS232/DB9 Cable Pin-Out
See Page 7 for the RS-232 cable pin-out conguraon.
Upon power up the following image will appear:
PS190 by Presentation Switchers
Firmware Revision 1.0
$
The “$” indicates that the PS190 is ready to receive a command. For a list of the available
commands, type “HELP” and hit the return key.
PS190 by Presentation Switchers
Firmware Revision 1.0
$ HELP
PS190 Published Commands
-------- -----------------------------------------------
HELP - This page.
ID - Displays Device Identication
FRUN # - Freerun Mode (0 = Disable, 1 = Enable)
ASW - Displays Auto-Switch Feature Status.
ASW # - Selects Auto-Switch (0=O, 1=On).
SW - Displays currently selected input being displayed.
SW # - Selects input ‘#’ (1-5) to be displayed.
RES - Displays EDID output resolution.
RES # - Selects output resolution from table (1-7), 1=1080p
MUTE # - Mutes Audio Output (0=Unmute, 1=Mute)
VOL - Displays Volume Level
VOL # - Set Volume Level (1-100)
+ - Increase Volume by 1 Step (1-100)
- - Decreases Volume by 1 Step (1-100)
LIN - Displays Line Input Volume Level (1-100)
LIN # - Changes Line In Level (1-100)
TRIM - Displays all TRIM Settings
TRIM # # - Sets Selected Input (#) to TRIM Setting (#)
DBG # - Sets Devices to Debug Mode
TV # - Uses CEC to control Display (0=O, 1=On)
CEC # - Turns CEC On/O (0=O, 1=On)

Page 11PS190 Users Guide
Making a Switch / Selecting an Input to Display
The most basic capability of the PS190 is roung signals from “Input Ports” to the “Output Port”.
This process is oen called “switching”. To do this with the PS190, use the SW command:
PS190 by Presentation Switchers
Firmware Revision 1.0
$ SW 3
SW 3
In the example above, the audio and video from the device connected on Input 3 will be routed
to the display. Audio from this device will be heard on the display as well as the stereo audio
output port.
To obtain the current input, simply type “SW” and a carriage return.
Adjust Volume
To change the volume level on the Stereo Line Output:
PS190 by Presentation Switchers
Firmware Revision 1.0
$ VOL 85
VOL 85
The VOL command above is being changed to 85. The default audio level from the factory is 70
so a level of 85 is raising the volume level substanally.
Incremental volume adjustments can be achieved by typing “+” or “-” without hing a carriage
return.
To mute the audio, type “MUTE 1”. “MUTE 0” unmutes.
The VOL, MUTE, +, and - only aect the Stereo Line Output. Volume levels on the HDMI dis-
play can only be changed by adjusng the volume on the display itself.
Input Device Gain Adjustments
Consumer and professional devices oen dier in the volume levels. A gain adjustment is used
to “trim” devices that are too loud so that all devices have the same relave volume. When
switching between the devices there should be no nocable volume dierence between each
input. All inputs are defaulted to a trim level of 100. To trim one input, use the trim feature to
reduce the trim level to something less than 100. Here is an example:

Page 12 Presentation Switchers, Inc.
PS190 by Presentation Switchers
Firmware Revision 1.0
$ TRIM 3 85
TRIM 3 85
$ TRIM
TRIM 1 100
TRIM 2 100
TRIM 3 85
TRIM 4 100
TRIM 5 100
In this example, we rst change the trim level on Input 3 to be a level of 85. Entering “TRIM”
and a carriage return will display the trim levels of all inputs. In this case, we can see that the
trim level for Input 3 has be set to 85.
Audio Line Input Mix
To change the relave mix or audio level of the line input in relaon to the HDMI extracted
audio, use the LIN command. For example:
PS190 by Presentation Switchers
Firmware Revision 1.0
$ LIN 80
LIN 80
In this example, stereo line input’s volume level is increased (from the default value of 70) in
relaon to the audio extracted from the current HDMI input selected. Installaons which use
this feature for a teacher microphone may want their voice louder.
A LIN value of zero will eecvely mute the stereo line input and not aect the loudness of the
HDMI input selected.
Type “LIN” and carriage return to obtain the current LIN value.
Change Display Resolution
Most input devices send a request to the display to get it’s nave resoluon. The response from
the display arrives in a data packet called the Extended Display Idencaon Data (EDID). The
input device then adjusts it’s output resoluon to match the resoluon of the display.
The PS190 has the ability to intercept the input device’s request for display informaon and
respond with a user dened resoluon. The command to specify this resoluon is the RES
command and below is a list of RES sengs:

Page 13PS190 Users Guide
EDID Table Settings
RES Value Resoluon / Behavior
0 Pass Through Mode
1 1080p @ 60Hz
2 720p @ 60Hz
3 1920 x 1200 @ 60Hz
4 1600 x 1200 @ 60Hz
5 1280 x 1024 @ 60Hz
6 1280 x 768 @ 60Hz
7 1024 x 768 @ 60Hz
Here is an example:
PS190 by Presentation Switchers
Firmware Revision 1.0
$ RES 2
RES 2
In the example above, the EDID is modied to indicate the preferred resoluon of this display
is 720p. The PS190 will send out a refresh request to all inputs to read the latest display
informaon. Unless resoluons have been overridden by the end user, input devices will
automacally change their output resoluon to match the new resoluon.
To view the current resoluon seng, type “RES” and a carriage return.
Auto-Switch On / O
By default, auto-switch is always enabled. Here is how to control this feature:
PS190 by Presentation Switchers
Firmware Revision 1.0
$ ASW 0
ASW 0
By typing “ASW 0”, the auto-switching feature is disabled. From this point, the only way to make
a switch is by using the SW command. “ASW 1” will enable the feature.
Type “ASW” and carriage return to view the current state of the auto-switch feature.

Page 14 Presentation Switchers, Inc.
Display Control
As stated in more detail on Page 8, the display control feature is used to automacally turn
on a display when beginning a presentaon, then turn o the display when the presentaon
concludes.
By default, display control is always enabled. Here is how to control this feature:
PS190 by Presentation Switchers
Firmware Revision 1.0
$ CEC 0
CEC 0
In the example above, typing “CEC 0” and carriage return will turn o the display control
feature. “CEC 1” and carriage return will enable the feature.
Type “CEC” and carriage return to obtain the current state of the auto-switch feature.
Note: This feature requires that CEC is enabled on the display device. See the detailed discus-
sion on Page 8 regarding this feature and manufacturer trade names of CEC.
Display On / O
Similar to the automac display control, the PS190 can manually tell the display to turn on and
o. Here is an example of how this feature works:
PS190 by Presentation Switchers
Firmware Revision 1.0
$ TV 0
TV 0
In the example above, “TV 0” with a carriage return will shut o the display. Typing a “TV 1” and
carriage return will turn the display on.
Type “TV” and carriage return to view the current state of the display’s power status.
Note: This feature requires that CEC is enabled on the display device. See the detailed discus-
sion on Page 8 regarding this feature and manufacturer trade names of CEC.
Freerun On / O
Freerun is a term to describe what happens when one selects an input that doesn’t have a

Page 15PS190 Users Guide
device connected or when one selects an input that has a device connected but the device isn’t
sending video.
When freerun is enabled (on) a blue screen displays at a xed resoluon of 480p (a resoluon
that is required by all HDMI display devices per the HDMI standard). When freerun is disabled
the display will receive a disconnected signal (no signal present).
By default, freerun is enabled. To disable:
PS190 by Presentation Switchers
Firmware Revision 1.0
$ FRUN 0
FRUN 0
In the example above, “FRUN 0” with a carriage return will shut o the freerun feature. Typing a
“FRUN 1” and carriage return will turn the freerun feature on.
Type “FRUN” and carriage return to view the current state of the freerun feature.

Page 16 Presentation Switchers, Inc.
© 2015 Presentaon Switchers, Inc. All rights reserved.
Presentaon Switchers, Inc.
2324 Cheney-Spokane Road
Cheney, WA 99004 USA
Sales@PSwitchers.com
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