Kramer DIP-31 User manual

P/N: 2900-300630 Rev 2 www.kramerAV.com
USER MANUAL
MODEL:
DIP-31
Automatic Video Switcher

DIP-31 – Contents
i
Contents
1Introduction 1
2Getting Started 2
Achieving the Best Performance 22.1 Safety Instructions 22.2 Recycling Kramer Products 32.3
3Overview 4
4Defining the Automatic Video Switcher 5
5Connecting the DIP-31 Automatic Video Switcher 7
Connecting the Remote Control Switches 95.1 Wiring the RJ-45 Connectors 105.2
6Principles of Operation 11
Input Selection 116.1 Signal Loss and Unplugged Cable Timeouts 126.2 Audio Signal Control 126.3 VGA Phase Shift 136.4
7Operating the DIP-31 14
Locking the EDID 147.1 Resetting the DIP-31 147.2 Analog Audio Output Volume Control 157.3
8Configuring the DIP-31 16
Setting the Configuration DIP-switch 168.1 Switching Timeouts 178.2 Using the Step-in Feature 178.3
9Operating the DIP-31 Remotely Using the Web Pages 18
Browsing the DIP-31 Web Pages 189.1 Switching Page 239.2 Device Settings Page 249.3 Remote Device Control Page 269.4 Video and Audio Settings Page 279.5 Authentication Page 289.6 EDID Page 309.7 About Us Page 329.8
10 Technical Specifications 33
Default IP Parameters 3410.1 Default Logon Credentials 3410.2 Supported HDMI Resolutions 3410.3 Supported VGA Resolutions 3510.4
11 Default EDID 36
HDMI 3611.1 PC-UXGA 3811.2
12 Protocol 3000 40
Understanding Protocol 3000 4112.1 Kramer Protocol 3000 Syntax 4312.2 Protocol 3000 Commands 4412.3

ii
DIP-31 - Contents
Figures
Figure 1: DIP-31 Front Panel 5
Figure 2: DIP-31 Rear Panel 6
Figure 3: Connecting the DIP-31 7
Figure 4: Remote Switches Terminal Block 9
Figure 5: TP PINOUT 10
Figure 6: Configuration DIP-switch 16
Figure 7: Entering Logon Credentials 19
Figure 8: Default Page 20
Figure 9: Main Switching Page 21
Figure 10: Switching Page 23
Figure 11: Device Settings Page 24
Figure 12: Video and Audio Settings Page 27
Figure 13: Authentication Page 28
Figure 14: EDID Page 30
Figure 15: About Us Page 32

DIP-31 – Introduction
1
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 video, audio, presentation, and broadcasting professionals
on a daily basis. In recent years, we have redesigned and upgraded most of our
line, making the best even better!
Our 1,000-plus different models now appear in 14 groups that are clearly defined by
function: GROUP 1: Distribution Amplifiers; GROUP 2: Switchers and Routers;
GROUP 3: Control Systems; GROUP 4: Format/Standards Converters; GROUP 5:
Range Extenders and Repeaters; GROUP 6: Specialty AV Products; GROUP 7:
Scan Converters and Scalers; GROUP 8: Cables and Connectors; GROUP 9:
Room Connectivity; GROUP 10: Accessories and Rack Adapters; GROUP 11:
Sierra Video Products; GROUP 12: Digital Signage; GROUP 13: Audio; and
GROUP 14: Collaboration.
Congratulations on purchasing your Kramer DIP-31 Automatic Video Switcher
which are part of the Kramer Audio Distribution System and are ideal for:
Display systems requiring simple, automatic input selection.
Multimedia and presentation source selection.
Video distribution in hotel rooms and schools.

2
DIP-31 - Getting Started
2 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 http://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).
2.1 Achieving the Best Performance
To achieve 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 DIP-31 Automatic Video Switcher 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.
2.2 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

DIP-31 – Getting Started
3
2.3 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 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 http://www.kramerav.com/support/recycling/.

4
DIP-31 - Overview
3 Overview
DIP-31 is a 4K UHD automatic switcher for HDMI, VGA, Ethernet, data and
unbalanced audio signals. The unit supports resolutions up to 4K@60Hz (4:2:0)
UHD and various modes of input selection and transmits the signal via HDMI cable
to a compatible receiver (for example the VS-62H or when connecting directly to a
display/projector). DIP-31 is a Step−in commander when connected to a matrix
switcher that supports Step−in over HDMI such as the VS-62H.
The DIP-31 Automatic Video Switcher features:
Max. Resolution –4K@60Hz (4:2:0) UHD and WUXGA.
Max. Data Rate –10.2Gbps (3.4Gbps per graphic channel).
HDTV support
HDCP compliancy –works with sources that support HDCP repeater mode
HDMI with Deep Color, x.v.Color™ and 3D
I-EDIDPro™ Kramer Intelligent EDID Processing™ – Intelligent EDID handling
& processing algorithm ensures Plug and Play operation for HDMI systems
Automatic live input detection based on video clock presence
Automatic input selection based on priority selection or last connected input
Manual input selection
Step-in control when connected to a device that provides step-in support
Automatic analog audio detection and embedding
Control via Kramer Protocol 3000 and embedded Web pages over a LAN
A lockable EDID
Remote control via contact-closure switches
Equalization and re-clocking of the data
Support for digital audio formats
An RS-232 data port for controlling external devices

DIP-31 – Defining the Automatic Video Switcher
5
4 Defining the 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

6
DIP-31 - Defining the Automatic Video Switcher
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 source or 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
Section 8.1)
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
12VDC Connector
Connect to the supplied power adapter

DIP-31 - Connecting the DIP-31 Automatic Video Switcher
7
5 Connecting the 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.

8
DIP-31 - Connecting the DIP-31 Automatic Video Switcher
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 Section 5.1).
8. Connect the PC/HDMI 2-way terminal block to a momentary, contact-closure
switch for input selection, (see Section 5.1).
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).

DIP-31 - Connecting the DIP-31 Automatic Video Switcher
9
5.1 Connecting the 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
Section 6.4)
2
STEP IN
Activates the step-in function if relevant
3
VOL UP—analog audio output
volume increase control, (see
Section 7.3)
Short press—Increases the volume one step
Long press—Increases the volume from 0% to 100%
in 10 seconds
4
VOL DN—analog audio output
volume decrease control, (see
Section 7.3)
Short press—Decreases the volume one step
Long press—Decreases the volume from 100% to 0%
in 10 seconds
G
GND
Connect to the common side of the switches

10
DIP-31 - Connecting the DIP-31 Automatic Video Switcher
5.2 Wiring the 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

DIP-31 - Principles of Operation
11
6 Principles of Operation
The DIP-31 selects video and audio inputs based on the rules described below.
6.1 Input Selection
The video mode selection is set by the DIP-switches (see Section 8.1) 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.

12
DIP-31 - Principles of Operation
6.2 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 Section 8.1).
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.
6.3 Audio Signal Control
The Option DIP-switches 3 and 4 (see Section 8.1) 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.

DIP-31 - Principles of Operation
13
6.4 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 Section 0)
Protocol 3000 commands over RS-232 (see Section 12)

14
DIP-31 - Operating the DIP-31
7 Operating the DIP-31
The DIP-31 can be operated using any of the following methods:
Front panel buttons
Protocol 3000 command, (see Section 12)
Remote contact-closure switch, (see Section 5.1)
Web pages, (see Section 9)
7.1 Locking the 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 Section 12)
Use the Web pages, (see Section 9)
7.2 Resetting the 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 Section 9)
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

DIP-31 - Operating the DIP-31
15
7.3 Analog Audio Output Volume Control
The analog audio output volume can be controlled using the Web pages, (see
Section 0) or via the remote, contact-closure switches connected to pins 3 and 4 of
the Remote terminal block, (see Section 5.1).
The number of up/down volume steps per press is detailed in the table below.
Ramp
Volume Reading
Volume (dB)
1
100
0
1
99
–0.5
1
98
–1.0
1
97
–1.5
1
96
–2.0
1
…
(0.5 steps)
1
12
–44.0
1
11
–44.5
1
10
–45.0
1
9
–45.5
2
…
(2.0 steps)
2
8
–47.0
2
7
–49.0
2
6
–51.0
2
5
–53.0
2
4
–55.0
2
3
–57.0
2
2
–59.0
2
1
–61.0
2
0
–63.0