Kramer DIP-31 User manual

P/N: 2900-300630 Rev 8 www.kramerAV.com
USER MANUALs
MODEL:
DIP-31
Automatic Video Switcher

Kramer Electronics Ltd.
DIP-31 –Contents
i
Contents
Introduction 1
Getting Started 1
Overview 3
Typical Applications 4
About Maestro 4
Defining Automatic Video Switcher 5
Mounting DIP-31 7
Connecting DIP-31 Automatic Video Switcher 8
Connecting Remote Control Switches 9
Wiring RJ-45 Connectors 9
Principles of Operation 10
Input Selection 10
Signal Loss and Unplugged Cable Timeouts 10
Audio Signal Control 11
VGA Phase Shift 11
Operating DIP-31 12
Locking EDID 12
Resetting DIP-31 12
Analog Audio Output Volume Control 12
Configuring DIP-31 13
Setting Configuration DIP-switch 13
Switching Timeouts 14
Using Step-in Feature 14
Operating DIP-31 Remotely Using Web Pages 15
Browsing DIP-31 Web Pages 15
Switching Page 17
Device Settings Page 18
Control Settings Page 21
Video and Audio Settings Page 22
Authentication Page 23
EDID Management Page 24
Firmware Upgrade Page 26
About Page 27
Technical Specifications 28
Default IP Parameters 28
Default RS-232 Communication Parameters 29
Default Logon Credentials 29
Supported HDMI Resolutions 30
Supported VGA Resolutions 30
Default EDID 31
HDMI 31
PC-UXGA 32
Protocol 3000 34
Understanding Protocol 3000 35
Kramer Protocol 3000 Syntax 36
Protocol 3000 Commands 37

Kramer Electronics Ltd.
DIP-31 –Introduction
1
Introduction
Welcome to Kramer Electronics! Since 1981, Kramer Electronics has been providing a world
of unique, creative, and affordable solutions to the vast range of problems that confront the
video, audio, presentation, and broadcasting professional on a daily basis. In recent years, we
have redesigned and upgraded most of our line, making the best even better!
Getting Started
We recommend that you:
•Unpack the equipment carefully and save the original box and packaging materials for
possible future shipment.
•Review the contents of this user manual.
Go to www.kramerav.com/downloads/DIP-31 to check for up-to-date user manuals,
application programs, and to check if firmware upgrades are available (where appropriate).
Achieving the Best Performance
•Use only good quality connection cables (we recommend Kramer high-performance,
high-resolution cables) to avoid interference, deterioration in signal quality due to poor
matching, and elevated noise levels (often associated with low quality cables).
•Do not secure the cables in tight bundles or roll the slack into tight coils.
•Avoid interference from neighboring electrical appliances that may adversely influence
signal quality.
•Position your Kramer DIP-31 away from moisture, excessive sunlight and dust.
This equipment is to be used only inside a building. It may only be connected to other
equipment that is installed inside a building.
Safety Instructions
Caution: There are no operator serviceable parts inside the unit.
Warning: Use only the power cord that is supplied with the unit.
Warning: Do not open the unit. High voltages can cause electrical shock! Servicing by
qualified personnel only.
Warning: Disconnect the power and unplug the unit from the wall before installing.
Recycling Kramer Products
The Waste Electrical and Electronic Equipment (WEEE) Directive 2002/96/EC aims to reduce
the amount of WEEE sent for disposal to landfill or incineration by requiring it to be collected
and recycled. To comply with the WEEE Directive, Kramer Electronics has made
arrangements with the European Advanced Recycling Network (EARN) and will cover any

Kramer Electronics Ltd.
DIP-31 –Introduction
2
costs of treatment, recycling and recovery of waste Kramer Electronics branded equipment on
arrival at the EARN facility. For details of Kramer’s recycling arrangements in your particular
country go to our recycling pages at www.kramerav.com/support/recycling.

Kramer Electronics Ltd.
DIP-31 –Overview
3
Overview
Congratulations on purchasing your Kramer DIP-31 Automatic Video Switcher. DIP-31 is a
high-performance multi-format switcher of 4K video signals. Offering intelligent Maestro
automation, with priority and last−connected switching options, it automatically switches and
operates the room according to the selected switching scheme based on active video signal
detection.
The DIP-31 Automatic Video Switcher features:
•Simple and Powerful Maestro Room Automation –Intuitive user interface enables you to
fully automate your meeting room elements. Configure lights, shades, devices and more
to be activated by an extensive range of triggers, including input/output connectivity,
routing, and button pressing. By minimizing user intervention, Maestro room automation
saves meeting prep time and minimizes human error before presentations.
•BYOD Plug & Play Auto Switcher –Automatically plays the switched user device source
signal on the connected display according to user-configured preferences, such as
priority or last-connected input. When the user manually switches, by pressing a button,
the auto switching is overridden.
•Simple Switching Operation –Local buttons or remotely connected contact-closure
buttons for flexible user input selection and switching control.
•HDMI™ Signal Switching – HDCP compliant, supporting deep color, x.v.Color™, lip
sync, HDMI uncompressed audio channels, Dolby TrueHD, DTS-HD, 2K, 4K, and 3D as
specified in HDMI 2.0.
•I-EDIDPro™ Kramer Intelligent EDID Processing™ – Intelligent EDID handling,
processing, locking and pass-through algorithm ensures plug & play operation for HDMI
source and display systems.
•Multi-channel Audio Switching –Up to 32 channels of digital stereo uncompressed
signals for supporting studio-grade surround sound.
•Audio Embedding –An auto-detected analog stereo audio input, per user selection, is
converted into a digital signal and embedded in the output HDMI signal, replacing the
source HDMI audio input signal. This enables, for example, a presenter to temporarily
override the playing source audio with speech description.
•Audio De-embedding –The digital audio signal passing-through to the output, is
de-embedded, converted to an analog signal and sent to the stereo analog audio output.
This enables playing the audio on locally connected speakers, in parallel to playing it on
the speakers connected to the AV acceptor device (such as TVs with speakers).
•Cost-effective Maintenance –Status LED indicators for HDMI, and VGA ports facilitate
easy local maintenance and troubleshooting. Remote IP-driven device management via
built-in web pages and RS–232 connection. Local and remote firmware upgrade via RS–
232 or Ethernet connection tool ensure lasting, field-proven deployment.
•Easy Installation –Compact MegaTOOLS®fan–less enclosure for flexible table
mounting.

Kramer Electronics Ltd.
DIP-31 –Overview
4
Typical Applications
DIP-31 is ideal for the following typical applications:
•Table-mounted switcher in lecture halls, training rooms, auditoriums and hospitality
applications.
•User accessible switcher for huddle rooms and within any AV distribution system
•Multimedia and presentation source selection in various corporate applications.
About Maestro
DIP-31 showcases Maestro, Kramer’s easy to configure, single-trigger room automation
software that creates customized meeting room environments with minimal end-user
intervention.
Maestro creates a series of actions based on a pre-defined event, or trigger, such as plugging
in a laptop or turning a display off. These events can trigger actions such as turning on
computers (via Wake-on-LAN) and turning on and off lights, projectors, displays, video
sources, and HVAC.
Integrated with Kramer’s dynamic database of device drivers, there is no end to the types of
actions Maestro can perform. Maestro enables automated control over a variety of port types:
RS-232, Ethernet, GPIO, relay, and IR.
Maestro makes meeting rooms environmentally-friendly by ensuring that lights and devices
are automatically turned off. The solution turns a device or series of devices on or off based
on triggers, e.g., removing inputs, time, etc. This helps create a greener workplace, and over
time, saves significant energy costs.

Kramer Electronics Ltd.
DIP-31 –Defining Automatic Video Switcher
5
Defining Automatic Video
Switcher
Figure 1 defines the front panel of the DIP-31.
Figure 1: DIP-31 Front Panel
#
Feature
Function
1
HDMI IN 1
SELECT Button
Press to select the HDMI In 1 input.
When HDMI In 1 is selected, the button:
•Lights red when external audio is selected.
•Lights green when HDMI In 1 is selected.
2
HDMI 1 Connector
Connect to the first HDMI source.
3
HDMI IN 2
SELECT Button
Press to select the HDMI In 2 input.
When HDMI In 2 is selected, the button:
•Lights red when external audio is selected.
•Lights green when HDMI In 2 is selected.
4
HDMI 2 Connector
Connect to the second HDMI source.
5
PC IN
SELECT Button
Press to select the PC graphics input.
When PC graphics is selected, the button:
•Lights red when external audio is selected.
•Lights green when the PC input selected.
6
PC Graphics 15-pin
HD Connector
Connect to the PC graphics source, (for example, a laptop).
7
AUDIO IN 3.5mm Mini Jack
Connect to the unbalanced, stereo audio source, (for example,
the audio output of the laptop).
8
Step-In Button
Press to take control of the input that this device is connected to
on a compatible switcher.
9
ON LED
Lights green when the device is powered on.

Kramer Electronics Ltd.
DIP-31 –Defining Automatic Video Switcher
6
Figure 2 defines the rear panel of the DIP-31.
Figure 2: DIP-31 Rear Panel
#
Feature
Function
1
AUDIO OUT 3.5mm Mini Jack
Connect to the unbalanced, stereo audio acceptor, (for
example, active speakers).
2
ETHERNET RJ-45 Connector
Connect to the LAN, (Ethernet traffic or PC controller).
3
RS-
232
CONTROL 3-pin Terminal
Block
Connect to a serial controller or PC.
4
DATA 3-pin Terminal
Block
Connect to a serial data acceptor.
5
PC/HDMI Remote Toggle Switch
Terminal Block
Connect to a remote momentary switch to toggle between the
PC graphics and HDMI inputs.
6
Remote Contact-closure 4-pin
Terminal Block
Connect to remote momentary switches to control step-in and
audio volume.
7
FACTORY RESET Button
Short press to reboot, long press to reset the device to factory
default parameters.
8
SETUP 4-way DIP-switch
Switches for setting the device behavior, (see Setting
Configuration DIP-switch on page 13).
9
PROG Mini USB Connector
Connect to a PC to perform a firmware upgrade.
10
HDMI OUT Connector
Connect to a compatible HDMI display.
11
12V DC Connector
Connect to the supplied power adapter.

Kramer Electronics Ltd.
DIP-31 –Mounting DIP-31
7
Mounting DIP-31
This section provides instructions for mounting DIP-31. Before installing, verify that the
environment is within the recommended range:
•Operation temperature –0to 40C (32 to 104F).
•Storage temperature –-40to +70C (-40 to +158F).
•Humidity –10% to 90%, RHL non-condensing.
Caution:
•Mount DIP-31 before connecting any cables or power.
Warning:
•Ensure that the environment (e.g., maximum ambient temperature & air flow) is
compatible for the device.
•Avoid uneven mechanical loading.
•Appropriate consideration of equipment nameplate ratings should be used for avoiding
overloading of the circuits.
•Reliable earthing of rack-mounted equipment should be maintained.
•Maximum mounting height for the device is 2 meters.
To mount the DIP-31 on a rack
Mount the unit in a rack using the recommended rack adapter
(see www.kramerav.com/product/DIP-31)
To mount the DIP-31 on a table or shelf
•Attach the rubber feet and place the unit on a flat surface.
•Fasten a bracket (included) on each side of the unit and attach it to
a flat surface.
For more information go to www.kramerav.com/downloads/DIP-31

Kramer Electronics Ltd.
DIP-31 –Connecting DIP-31 Automatic Video Switcher
8
Connecting DIP-31 Automatic
Video Switcher
Always switch off the power to each device before connecting it to your DIP-31. After
connecting your DIP-31, connect the power to each of them and then switch on the power to
each device.
Figure 3: Connecting the DIP-31
To connect the DIP-31 as illustrated in Figure 3:
1. Connect an HDMI source, (for example, a Blu-ray disk player) to the HDMI IN 1 input.
2. Connect a PC graphics source, (for example, a laptop) to the PC In input.
3. Connect an unbalanced stereo audio source, (for example, the audio output from the
laptop) to the AUDIO IN 3.5mm mini jack.
4. Connect the HDMI OUT connector on the rear panel of the DIP-31 to an HDMI
compatible switcher, display or projector.
5. Connect the DATA RS-232 3-pin terminal block on the rear panel of the DIP-31 to an
RS-232 controlled device (for example, a projector) or an RS-232 controller.
6. Connect the AUDIO OUT 3-pin terminal block on the rear panel of the DIP-31 to the
unbalanced, stereo audio acceptor, (for example, active speakers).
7. Connect the STEP IN 2-way terminal block to a momentary, contact-closure switch, (see
Connecting Remote Control Switches on page 9).
8. Connect the PC/HDMI 2-way terminal block to a momentary, contact-closure switch for
input selection, (see Connecting Remote Control Switches on page 9).
9. Connect the Vol Up/Vol Down 3-pin terminal block to remote, contact-closure, volume
control switches.
10.Connect the power adapter to the DIP-31 and to the mains power,
(not shown in Figure 3).

Kramer Electronics Ltd.
DIP-31 –Connecting DIP-31 Automatic Video Switcher
9
Connecting Remote Control Switches
You can connect remote, momentary-contact contact-closure switches to the terminal block
on the rear panel of the DIP-31 to control the device.
Figure 4 illustrates the connections from the terminal block to the contact-closure switches.
Figure 4: Remote Switches Terminal Block
#
Feature
Function
1
PC/HDMI-input selection/VGA phase shift adjustment.
Short press-Input toggle.
Long press-Adjusts the VGA phase shift,
(see VGA Phase Shift on page 11).
2
STEP IN
Activates the step-in function if relevant.
3
VOL UP-analog audio output volume increase control,
(see Analog Audio Output Volume Control on page 12).
Short press-Increases the volume one
step.
Long press-Increases the volume
from -83dB to +24dB in 10 seconds.
4
VOL DN-analog audio output volume decrease control,
(see Analog Audio Output Volume Control on page 12).
Short press-Decreases the volume one
step.
Long press-Decreases the volume
from -83dB to +24dB in 10 seconds.
G
GND
Connect to the common side of the
switches.
Wiring RJ-45 Connectors
This section defines the TP pinout, using a straight pin-to-pin cable with RJ-45 connectors.
EIA /TIA 568B
Figure 5: TP PINOUT
PIN
Wire Color
1
Orange / White
2
Orange
3
Green / White
4
Blue
5
Blue / White
6
Green
7
Brown / White
8
Brown

Kramer Electronics Ltd.
DIP-31 –Principles of Operation
10
Principles of Operation
The DIP-31 selects video and audio inputs based on the rules described below.
Input Selection
The video mode selection is set by the DIP-switches (see Setting Configuration DIP-switch
on page 13) to either of the following modes:
•Manual
•Auto-Last connected or priority mode
In manual mode switching occurs whether or not there is a live signal present on the input.
You select manually select an input using any of the following methods:
•Front panel buttons
•Remote input selection switches
•RS-232 control
•Web pages
In auto mode, the switching selection is performed based on either last connected or priority
input.
In last connected mode, if the signal on the current input is lost, the DIP-31 automatically
selects the last connected input, (the delay depending on the configurable signal-lost timeout).
In priority mode, when the input sync signal is lost for any reason, the input with a live signal
and next in priority is selected automatically, (the delay depending on the configurable signal-
lost timeout). This priority is configurable; the default setting is HDMI 1 HDMI 2 PC.
In both last connected and priority modes, manually selecting an input (using the remote input
selection switches or any of the above methods) overrides automatic selection.
Signal Loss and Unplugged Cable Timeouts
In both last connected and priority modes, when the input signal sync is lost (but the cable is
not removed) there is a default delay (ten seconds for video, not applicable to the PC input,
and five seconds for analog audio) before another input is automatically selected. When an
input cable is removed, there is a delay before automatic switching takes place.
Both timeouts are configurable, (see Setting Configuration DIP-switch on page 13).
When “Audio Only” mode is enabled, analog audio is not output when there is no display
connected. If a display is connected analog audio is output even in the absence of a video
signal.

Kramer Electronics Ltd.
DIP-31 –Principles of Operation
11
Audio Signal Control
The Option DIP-switches 3 and 4 (see Setting Configuration DIP-switch on page 13) control
the manner in which audio is handled.
The following table describes which audio signal is embedded in the output.
Selected Video
Input
HDMI Embedded Audio
Detected
Analog Audio
Detected
DIP-
switch 3
DIP-switch
4
Audio on HDMI
Output
VGA
N/A
Yes
N/A
N/A
Analog audio
VGA
N/A
No
N/A
N/A
No audio
HDMI
N/A
N/A
Manual
Embedded
Embedded audio
HDMI
N/A
N/A
Manual
Analog
Analog audio
HDMI
Yes
No
Auto
N/A
Embedded audio
HDMI
Yes
Yes
Auto
Embedded
Embedded audio
HDMI
Yes
Yes
Auto
Analog
Analog audio
HDMI
No
Yes
Auto
N/A
Analog audio
HDMI
No
No
Auto
N/A
No audio
When there is an audio signal but no video signal the output is a black video pattern in
conjunction with the analog audio signal.
VGA Phase Shift
To minimize phase on the input VGA signal, the VGA sampling phase can be shifted using
the following methods:
•A long press on the PC IN select button on the front panel.
Each long press steps the phase shift up one step, starting from 0 and going to 31.
When set to 31, another long press steps the shift to 0.
•A remote, contact-closure switch connected to pins 1 and G of the Remote terminal
block.
Each long press steps the phase shift up one step, starting from 0 and going to 31.
When set to 31, another long press steps the shift to 0.
•Using the Web pages, (see Operating DIP-31 Remotely Using Web Pages on page 15).
•Protocol 3000 commands over RS-232 (see Protocol 3000 on page 34).
VGA phase default value is 6.

Kramer Electronics Ltd.
DIP-31 –Operating DIP-31
12
Operating DIP-31
The DIP-31 can be operated using any of the following methods:
•Front panel buttons.
•Remote contact-closure switch, (see Connecting Remote Control Switches on page 9).
•Web pages, (see Operating DIP-31 Remotely Using Web Pages on page 15).
•Protocol 3000 command, (see Protocol 3000 on page 34).
Locking EDID
To lock the EDID and prevent the stored EDID (either default or read from a device) from
being overwritten:
•Send a Protocol 3000 command, (see Protocol 3000 on page 34).
•Use the Web pages, (see EDID Management Page on page 24).
Resetting DIP-31
The DIP-31 can be reset to factory default by either:
•Using the button on the rear panel.
•Using the Web pages, (see Device Settings Page on page 18).
To perform a soft reset of the DIP-31:
•Briefly press the Reset button.
The device resets.
To reset the DIP-31 to factory default parameters:
•Press and hold the Reset button for five seconds.
The device is reset to factory default parameters.
Analog Audio Output Volume Control
The analog audio output volume can be controlled using different methods:
•Using the Web pages, (see Browsing DIP-31 Web Pages on page 15).
•Using the remote, contact-closure switches connected to pins 3 and 4 of the Remote
terminal block, (see Connecting Remote Control Switches on page 9).
•Using P3000 commands to control the volume (see Audio Commands on page 55).
The volume is adjustable from -83dB to +24dB in steps of 0.5dB.

Kramer Electronics Ltd.
DIP-31 –Configuring DIP-31
13
Configuring DIP-31
Setting Configuration DIP-switch
The 4-way DIP-switch provides the ability to configure a number of device functions. A switch
that is down is on; a switch that is up is off. By default, all the switches are up (off).
Figure 6: Configuration DIP-switch
After changing a DIP-switch you must power cycle the device to implement the change.
Video Switching Selection
DIP-switch 1
DIP-switch 2
Video Input Selection
Off (up)
Off (up)
Automatic-Last connected. Where more than one source is connected the
last one connected has priority
Off (up)
On (down)
Automatic-Priority selection.
HDMI 1 HDMI 2 PC IN
(default, high to low priority)
On (down)
Off (up)
Manual
On (down)
On (down)
Manual
Audio Switching Selection
DIP-switch 3
DIP-switch 4
Audio Input Selection
Off (up)
Off (up)
Automatic-Priority selection.
Embedded HDMI analog Audio In
(high to low priority)
Off (up)
On (down)
Automatic-Priority selection.
Analog Audio In embedded HDMI
(high to low priority)
On (down)
Off (up)
Embedded HDMI
On (down)
On (down)
Analog Audio In

Kramer Electronics Ltd.
DIP-31 –Configuring DIP-31
14
Switching Timeouts
When the DIP-31 is configured for auto switching, the timeouts (before a new input is
automatically selected) can be changed as shown in the tables below. (For the delay settings
on the Web page, see Control Settings Page on page 21.) The following switching timeouts
are only for HDMI and not VGA.
Timeout
Minimum Value
Default Value
Delay switching upon signal loss (signal off, 5V power on)
5 seconds.
10 seconds for
video input
5 Seconds for
audio input.
Delay switching upon cable unplug (signal off, power off)
0 seconds.
0 seconds.
Delay 5V power off upon signal loss (delay must be greater
than “Delay switching upon signal loss”)
Should at least equal the
larger of the above two
values (signal loss
timeout and cable unplug
timeout).
900 seconds.
For example,
If:
Delay switching upon signal loss = 15 seconds
and/or:
Delay switching upon cable unplug = 30 seconds
then:
Delay 5V power off upon signal loss must be >= 30 seconds
Using Step-in Feature
To be able to use the Step-in feature, you need to assign the RS-232 signal that is transmitted
over the HDMI link to control, (see Switching Page on page 17). The Step-in button on the
front panel now operates in conjunction with a compatible receiver, for example, the VS-62H).

Kramer Electronics Ltd.
DIP-31 –Operating DIP-31 Remotely Using Web Pages
15
Operating DIP-31 Remotely Using
Web Pages
The DIP-31 can be operated remotely using the embedded Web pages. The Web pages are
accessed using a Web browser and an Ethernet connection.
Before attempting to connect:
•Ensure that your browser is supported (see Technical Specifications on page 28).
•Ensure that JavaScript is enabled.
The syntax of writing numbers with a prefix of zero is parsed as an octal number. For
example, "0123" represents the decimal number 83.
The Web pages work with a minimum resolution of 1024 x 768.
Browsing DIP-31 Web Pages
In the event that a Web page does not update correctly, clear your Web browser’s cache by
pressing CTRL+F5.
To browse the DIP-31 Web pages:
1. Open your Internet browser.
2. Type the IP number of the device (see Default IP Parameters on page 28) in the
Address bar of your browser.
If authentication is enabled, the following window appears (Figure 7) and you must enter the
valid username (Admin) and password (Admin) to access the Web pages.
Figure 7: Entering Logon Credentials

Kramer Electronics Ltd.
DIP-31 –Operating DIP-31 Remotely Using Web Pages
16
Following a successful logon, the Switching page appears (Figure 8).
To open the left-hand side page panel, click the Reveal button ►.
Figure 8: Main Switching Page
The areas of the main switching page are described in the following table.
Item
Description
Page Selection Panel
Click one of the buttons to select a page.
Switching Selection
Switching and control section. Click one of the buttons to select a video input.
Adjust the VGA phase shift. Adjust the audio volume. Select data routing mode.
Hide/Reveal Button
Click to hide or reveal the page selection panel.
There are eight Web pages described in the following sections:
•Browsing DIP-31 Web Pages on page 15.
•Switching Page on page 17.
•Device Settings Page on page 18.
•Control Settings Page on page 21.
•Video and Audio Settings Page on page 22.
•Authentication Page on page 23.
•EDID Management Page on page 24.
•Firmware Upgrade Page on page 26.
•About Page on page 27.

Kramer Electronics Ltd.
DIP-31 –Operating DIP-31 Remotely Using Web Pages
17
Switching Page
The Switching page lets you select a video input manually and adjust the audio volume.
Figure 9: Switching Page
Item
Description
HDMI 1 Button
Click to select the HDMI 1 input. The button color indicates whether or not
there is a live signal on the input.
HDMI 2 Button
Click to select the HDMI 2 input.
VGA Button
Click to select the VGA input.
VGA Phase Change
Slider
Click and slide to the left or right to adjust the VGA phase change.
Audio Source: Indicator
Indicates the source of the audio that is transmitted on the output
(see Setting Configuration DIP-switch on page 13).
Volume Slider
Click and slide up and down to increase or decrease the audio output volume.
Mute/Unmute Button
Click to mute or unmute the output audio.

Kramer Electronics Ltd.
DIP-31 –Operating DIP-31 Remotely Using Web Pages
18
Device Settings Page
The Device Settings page lets you:
•Set the unit name and view the model type, firmware version, serial number and MAC
address.
•Edit IP settings, (for example, enable DHCP, set IP, mask and gateway addresses and
set UDP or TCP ports).
•Save and load configurations.
•Reset the device to factory default settings.
After making any change to the parameters on the Device Settings page, you must power
cycle the device to activate the changes.
Figure 10: Device Settings Page