Kramer VP-428H2 User manual

P/N: 2900-300855 Rev 1 www.KramerAV.com
USER MANUAL
MODEL:
VP-428H2
4K HDBT Transmitter/Scaler

VP-428H2 - Introduction
i
Contents
Introduction 1
Getting Started 1
Overview 2
Functionality 2
Typical Applications 4
Controlling your VP-428H2 4
Defining VP-428H2 4K HDBT Transmitter/Scaler 5
Connecting VP-428H2 7
Connecting to VP-428H2 via RS-232 8
Operating VP-428H2 9
Front Panel Buttons 9
OSD Menu 9
Firmware Upgrade 14
Technical Specifications 15
Default Communication Parameters 16
Input Resolutions 16
Output Resolutions 17
Protocol 3000 18
Understanding Protocol 3000 19
Kramer Protocol 3000 Syntax 20
Protocol 3000 Commands 21

Kramer Electronics Ltd.
VP-428H2 - 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!
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 &
Repeaters; GROUP 6: Specialty AV Products; GROUP 7: Scalers; GROUP 8: Cables and
Connectors; GROUP 9: Room Connectivity; GROUP 10: Mounting and Rack Adapters;
GROUP 11: Sierra Video; GROUP 12: Digital Signage; GROUP 13: Audio; and GROUP 14:
Collaboration; GROUP 15: KM & KVM Switches.
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/VP-428H2 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 neighbouring electrical appliances that may adversely influence
signal quality.
Position your Kramer VP-428H2 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.

Kramer Electronics Ltd.
VP-428H2 - Introduction
2
Safety Instructions
Caution:
There are no operator serviceable parts inside the unit.
Warning:
Use only the Kramer Electronics power supply that is provided with the unit.
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
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.
Overview
Congratulations on purchasing your Kramer VP-428H2 4K HDBT Transmitter/Scaler.
VP-428H2 is an HDBaseT 4K transmitter/scaler with HDMI, DP and VGA inputs. VP-428H2
supports HDBT tunneling of Ethernet, bidirectional RS-232 and IR signals, as well as PoE to
provide power to the HDBaseT receiver. It receives the selected AV signal, up-scales,
down-scales or bypasses the video, according to the settings selected by the user, and
converts it for sending via HDBaseT, together with the tunneled data and PoE.
VP-428H2 is housed in a compact, Kramer MegaTOOL™ enclosure which can be mounted
side by side in a 19-inch rack using the RK-T2B rack adapter.
VP-428H2 provides exceptional quality, advanced and user-friendly operation, and flexible
control.
Functionality
Supports scaling to / from all input and output resolutions.
Works with any HDBT receiver (supports 4K without the need for a specialized receiver).
Upscales to all popular 4K resolutions (to 4K60 4:2:0 max).
Downscales from 4K60 4:4:4 to all resolutions.
Automatically downscales 6G 4K color space to 4:2:0.
OSD supported bypass option, as well as hardware bypass support.
HDBT tunnelling of RS-232, IR and Ethernet.

Kramer Electronics Ltd.
VP-428H2 - Introduction
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Exceptional Quality
PixPerfect™Scaling Technology –Kramer’s precision pixel mapping and high quality
scaling technology.
Output resolutions –with selectable refresh rates up to 4K/UHD.
System Range –For the HDBaseT output, extended reach of up to 100m (330ft) using
Kramer recommended cables.
Includes numerous filters and algorithms for eliminating picture artifacts.
HDCP 2.2, HDMI 2.0/1.4 compliance.
HDBaseT certified.
Advanced and User-friendly Operation
Built-in video Proc-Amp –color, hue, sharpness, contrast, and brightness are set
individually for each input.
An OSD (On-Screen Display) –for making adjustments –that can be located anywhere on
the screen.
Advanced EDID management per input.
Constant Sync –Maintains sync on the output, even if input video signal is lost or
interrupted.
Audio –Unbalanced stereo and embedded audio with individual input level controls.
Audio delay selection.
MENU and navigation buttons for using OSD.
Front-panel push-button for input selection.
STEP-IN button for Step-in control when connected to a device that provides step-in
support.
Firmware Upgrade –Via USB-A port, using a user-friendly software upgrade tool.
Auto-switching –Selectable last connected and auto-scanning of inputs.
Non-volatile memory that retains the last settings, after switching the power off and then
on again.

Kramer Electronics Ltd.
VP-428H2 - Introduction
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Flexible Connectivity
A FREEZE button, RESET TO XGA/1080P buttons (to hardware-reset the output
resolution); and a STEP-IN button.
3 video input ports –DP, HDMI and PC.
Ethernet tunnelling via HDBT.
Analog stereo audio input.
Embedded audio on the HDMI and DisplayPort inputs and outputs.
Scaled HDBT output.
IR input and output ports.
Data and device control RS-232 ports.
Typical Applications
VP-428H2 is ideal for the following typical applications:
Educational –Classrooms, lecture theaters.
Projection systems in conference rooms, boardrooms, hotels and churches.
Home theatre up-scaling.
Controlling your VP-428H2
Control your VP-428H2 directly via the front panel push buttons (see Front Panel Buttons
on page 9), with on-screen menus (OSD Menu on page 9), or:
By RS-232 serial commands transmitted by a touch screen system, PC, or other serial
controller (see Connecting to VP-428H2 via RS-232 on page 8).

Kramer Electronics Ltd.
VP-428H2 - Defining VP-428H2 4K HDBT Transmitter/Scaler
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Defining VP-428H2 4K HDBT
Transmitter/Scaler
This section defines VP-428H2.
Figure 1: VP-428H2 4K HDBT Transmitter/Scaler Front Panel
#
Feature
Function
PROG USB Connector
Connects to a USB memory stick for programming upgrade.
ON LED
Lights green when the unit is powered on.
IR IN 3.5mm Mini Jack
Connects to an IR sensor.
IR OUT 3.5mm Mini Jack
Connects to an IR emitter.
INPUT SELECT Button
Press to cycle between inputs.
INPUT SELECT LEDs
The selected input lights.
STEP IN Button
Press to activate the input on the switcher to which the VP-428H2 is
connected.
MENU Button
Press to enter/exit the on-screen display (OSD) menu.
Press together with the –button to reset to 1080p.
ENTER Button
In OSD, press to choose the highlighted menu item.
Press together with the +/FREEZE button to reset to XGA.
–Button
In OSD, press to move back through the list or to decrement the parameter
value.
+/FREEZE Button
In OSD, press to move forward through the list or to increment the
parameter value. When not in OSD, press to freeze the display.

Kramer Electronics Ltd.
VP-428H2 - Defining VP-428H2 4K HDBT Transmitter/Scaler
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Figure 2: VP-428H2 4K HDBT Transmitter/Scaler Rear Panel
#
Feature
Function
DP IN DisplayPort Connector
Connect to a DisplayPort source.
HDMI IN Connector
Connect to an HDMI source.
PC IN 15-pin HD Connector
Connect to a computer graphics source.
AUDIO IN 3.5mm Mini Jack
Connects to an unbalanced stereo audio source.
DATA (G, Rx, Tx)Terminal Block
Connectors
Connect to a source for tunneling control commands via HDBaseT.
CTRL (G, Rx, Tx)Terminal Block
Connectors
Connect to a PC or remote controller to control VP-428H2.
ETHERNET RJ-45 Connector
Connect to a PC via a LAN to tunnel Ethernet data via HDBT.
HDBT OUT RJ-45 Connector
Connect to an HDBaseT receiver.
48V DC Power Terminal Block
Connector
Connect to the Kramer power adapter.

Kramer Electronics Ltd.
VP-428H2 - Connecting VP-428H2
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Connecting VP-428H2
Always switch off the power to each device before connecting it to your VP-428H2. After
connecting your VP-428H2, connect its power and then switch on the power to each device.
To connect VP-428H2 as illustrated in the example in Figure 3:
1. Connect a DP source (for example, a laptop) to the DP IN DisplayPort connector .
2. Connect an HDMI source (for example, a Blu-ray player) to the HDMI IN connector .
3. Connect a computer graphics source (for example, a laptop) to the PC IN 15-pin HD
connector .
4. Connect an analog stereo audio source (for example, from the laptop) to the AUDIO IN
3.5mm mini jack .
5. Connect the HDBT OUT RJ-45 port to a receiver (for example, the Kramer
TP-580Rxr).
6. Connect an IR sensor to the IR IN 3.5mm mini jack (for example, to control the
projector connected to the HDBT receiver that is connected to HDBT OUT ).
The projector IR remote control transmitter sends commands to the projector via the IR
sensor.
7. Connect the IR IN 3.5mm mini jack to an IR emitter (for example, to control the
HDMI-connected Blu-ray player via the HDBT receiver that is connected to HDBT OUT
).
8. Connect a control system to the CTRL (G, Rx, Tx) terminal block connectors to
control VP-428H2.
9. Connect a control system to the DATA (G, Rx, Tx) terminal block connectors to
tunnel control commands via HDBT OUT.
10. Connect the RJ-45 Ethernet port to tunnel Ethernet data via HDBT OUT.
11. Connect the 48V power adapter and connect the adapter to the mains.

Kramer Electronics Ltd.
VP-428H2 - Connecting VP-428H2
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Figure 3: Connecting to the VP-428H2
Connecting to VP-428H2 via RS-232
You can connect to the VP-428H2 via an RS-232 connection ( , ) using, for example, a
PC.
To connect to the VP-428H2 via RS-232 Connect the RS-232 rear panel port on the VP-428H2
unit to the RS-232 port on your PC.

Kramer Electronics Ltd.
VP-428H2 - Operating VP-428H2
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Operating VP-428H2
Operate VP-428H2 via:
Front Panel Buttons on page 9.
OSD Menu on page 9.
Front Panel Buttons
Use VP-428H2 front panel buttons to perform the following operations:
Press MENU , ENTER , +and –to use the OSD menu.
Press MENU and –simultaneously to reset the resolution to 1080p (RESET TO 1080p).
Press ENTER and FREEZE simultaneously to reset the resolution to XGA (RESET TO
XGA).
Press INPUT SELECT to manually select the input to switch to the output.
Press STEP-IN to activate the input on a Step-in compatible device, see Using the
Step-in Feature on page 13.
OSD Menu
The control buttons let you control the VP-428H2 via the OSD menu. Press:
MENU to enter the menu.
The default timeout is set to 10 seconds.
ENTER button to accept changes and to change the menu settings.
+and –to move through the OSD menu, which is displayed on the video output.
On the OSD menu, select EXIT to exit the menu.
The OSD menu enables performing the following:
Setting Image Parameters on page 10.
Selecting the Input Signal on page 10.
Setting Output Parameters on page 11.
Setting the Audio Source on page 11.
Setting OSD Parameters on page 12.
Defining Advanced Settings on page 12.
Performing Factory Reset on page 13.
Viewing Device Information on page 13.

Kramer Electronics Ltd.
VP-428H2 - Operating VP-428H2
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Setting Image Parameters
To set the image parameters:
1. On the front panel click MENU. The menu appears.
2. Click PICTURE and set the following:
Menu Item
Function
CONTRAST
Set the contrast (the range and default values vary according to the input
signal).
BRIGHTNESS
Set the brightness (the range and default values vary according to the input
signal).
FINETUNE
Input Signal
Function
HDMI/DP
HUE –set the color hue.
SATURATION –set the color saturation.
SHARPNESS –set the sharpness of the picture.
NOISE REDUCTION –select the noise reduction: OFF
(default), LOW, MIDDLE, HIGH or AUTO.
VGA
PHASE –set the phase.
CLOCK –set the clock.
H-POSITION –set the horizontal position.
V-POSITION –set the vertical position.
COLOR
Set the RED, GREEN and BLUE shades.
Selecting the Input Signal
To set the input source:
1. On the front panel click MENU. The menu appears.
2. Click INPUT and set select the input source: DP, HDMI or PC (default).

Kramer Electronics Ltd.
VP-428H2 - Operating VP-428H2
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Setting Output Parameters
To set the output parameters:
1. On the front panel click MENU. The menu appears.
2. Click PICTURE and set the following:
Menu Item
Function
SIZE
Set the size of the image: FULL, OVER SCAN, UNDERSCAN, LETTER BOX, PAN
SCAN or BEST FIT.
4K in -> 4K out
Select SCALER to process the 4K-in to 4K-out signal via the scaler.
Select BYPASS to bypass the scaler.
RESOLUTION
Select the output resolution:
Appears as
Output Resolution
Appears as
Output Resolution
720X480P
480p
640x480
640x480
720X576P
576p
800x600
800x600
1280X720P50
720p@50Hz
1024x768
1024x768
1280X720P60
720p@60Hz
1280x768
1280x768
1920X1080P24
1080p@24Hz
1360x768
1360x768
1920X1080P25
1080p@25Hz
1280x720
1280x720
1920X1080P30
1080p@30Hz
1280x800
1280x800
1920X1080P50
1080p@50Hz
1280x1024
1280x1024
1920X1080P60
1080p@60Hz
1440x900
1440x900
4K2K 24
4K2K@24Hz
1400x1050
1400x1050
4K2K 25
4K2K@25Hz
1920X1080
1920X1080
4K2K 30
4K2K@30Hz
1680x1050
1680x1050
4K2K(420) 50
4K2K@50Hz(4:2:0)
1600x1200
1600x1200
4K2K(420) 60
4K2K@60Hz(4:2:0)
1920x1200 RB
1920x1200 RB
Setting the Audio Source
To set the audio source:
1. On the front panel click MENU. The menu appears.
2. Click AUDIO and set the following:
Menu Item
Function
DP SOURCE
Set to ANALOG, EMBEDDED (default) or AUTOMATIC.
HDMI SOURCE
Set to ANALOG, EMBEDDED (default) or AUTOMATIC.
DELAY
Set the audio delay time to OFF (default), 40ms, 50ms, up to 200ms (in
10ms steps).

Kramer Electronics Ltd.
VP-428H2 - Operating VP-428H2
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Setting OSD Parameters
To set the OSD parameters:
1. On the front panel click MENU. The menu appears.
2. Click OSD and set the following:
Menu Item
Function
H POSITION
Set the horizontal position of the OSD.
V POSITION
Set the vertical position of the OSD.
TIMER
Set the timeout period in seconds.
TRANSPARENCY
Set the OSD background between 100 (transparent) and 0 (opaque).
DISPLAY
Select the information displayed on-screen during operation:
INFO (default) –the information appears for 10 seconds.
ON –the information appears constantly.
OFF –the information does not appear.
Defining Advanced Settings
To set the advanced settings:
1. On the front panel click MENU. The menu appears.
2. Click ADVANCED and set the following:
Menu Item
Function
HDCP ON INPUT:
Set HDCP on DP and HDMI: either ON (default) or OFF.
Setting HDCP support to enabled (ON) or disabled (OFF) on the input
allows the source to transmit a non-HDCP signal if required (for
example, when working with a Mac computer).
HDCP ON OUTPUT:
Select FOLLOW INPUT, to change its HDCP output setting according to
the HDCP of the input.
This option is recommended when the HDMI/HDCP output is connected
to a splitter/switcher.
Select FOLLOW OUTPUT for the scaler to match its HDCP output to the
HDCP setting of the HDMI/HDCP acceptor to which it is connected.
AUTO SYNC OFF:
Turns off the output after a period of not detecting a valid video signal on
the input(s) until a valid input is again detected or any keypad is
pressed.
Set to:
Slow –to disable outputs after 2 minutes.
Fast –to disable outputs after 10 seconds.
Disable –to leave outputs active at all times.
AUTO INPUT:
Set to:
OFF (default) –for manual switching.
Last Connected –switches to the last connected input.
Scan –scans for a valid input.
AUTO IMAGE:
When ON, auto image is implemented every time the input is switched
to VGA or when the input resolution changes.
The auto-image feature calculates the positioning based on the picture
connected to the VGA input. Only a “full screen” picture can be used for
this auto-positioning –a test pattern (or some other picture) which has
black along the entire top, bottom or one of the sides would not be
suitable).
FREEZE:
Select to freeze and/or mute the display FREEZE ONLY / FREEZE +
MUTE (default) / MUTE ONLY.

Kramer Electronics Ltd.
VP-428H2 - Operating VP-428H2
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Menu Item
Function
EDID MANAGE:
Set DP EDID –to DEF. 1080P, DEF. 4K2K(3G), DEF. 4K2K(4:2:0) or
OUTPUT.
Set HDMI EDID –to DEF. 1080P, DEF. 4K2K(3G), DEF. 4K2K(4:2:0) or
OUTPUT.
HDBT DATA:
VP-428H2 can either pass data via HDBT OUT or use the Step-in
feature (see Using the Step-in Feature on page 13).
Set to:
DATA PORT (default) –to enable passing data via HDBT OUT.
STEP-IN 0 –to use Step-in with legacy Step-in-compatible switchers.
STEP-IN 4 –to use with new Step-in-compatible switchers.
Using the Step-in Feature
When the VP-428H2 HDBT OUT port is connected to a Step-in compatible switcher via the
HDBT OUT port (for example, VS-88UT), you can use the Step-in button to activate the input
on that switcher.
To use the Step-in feature first perform the initial setup and then perform a Step-in operation.
To use the Step-in feature:
1. Perform the initial setup:
On the front panel press MENU. The menu appears.
Click ADVANCED and then HDBT DATA.
Select STEP-IN 0 (legacy) or STEP-IN 4 (new).
The Step-in button on the front panel now operates in conjunction with the compatible receiver.
2. Perform a Step-in operation:
On the front panel click INPUT SELECT to select an input.
3. Press STEP-IN to switch the selected input to the connected switcher.
Performing Factory Reset
To perform factory reset:
1. On the front panel click MENU. The menu appears.
2. Click FACTORY and click YES.
Wait for completion of factory reset.
Viewing Device Information
To view the information:
1. On the front panel click MENU. The menu appears.
2. Click INFO. and view the following information: the selected source, the input and output
resolutions, Valens firmware version and software version.

Kramer Electronics Ltd.
VP-428H2 - Firmware Upgrade
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Firmware Upgrade
To upgrade the firmware:
1. Save the new firmware file to a memory stick.
2. Disconnect power from the VP-428H2.
3. Plug the memory stick into the PROG USB port on the VP-428H2 front panel.
4. Press and hold the MENU button while reconnecting power to the VP-428H2.
5. When the ON LED flashes, release the MENU button (meaning the device is in the FW
upgrading mode).
6. When the upgrade is complete, the LED stops flashing and illuminates.
7. Disconnect and reconnect the power cable.
8. Check that the INFO. screen shows the latest FW version (see Viewing Device
Information on page 13).

Kramer Electronics Ltd.
VP-428H2 - Technical Specifications
15
Technical Specifications
Inputs
1 DP
On a DisplayPort connector
1 HDMI
On a female HDMI connector
1 PC
On a 15-pin HD connector
1 Stereo Analog Unbalanced Audio
On a 3.5mm mini jack
1 IR IN
On a 3.5mm mini jack
Outputs
HDBT OUT
On an RJ-45 port
1 IR OUT
On a 3.5mm mini jack
Ports
1 USB
On a female USB-A connector
1 DATA RS-232
On a 3-pin terminal block for serial
link extension
1 CTRL RS-232
On a 3-pin terminal block for
device control
1 Ethernet
On an RJ-45 female connector for
port tunneling
Video
Max Bandwidth
10.2Gbps (3.4Gbps per graphic
channel)
Max Resolution
4K UHD @60Hz (4:2:0) 24bpp
resolution
Compliance
HDMI 2.0 and HDCP 2.2
Switching Time Between Inputs
2 to 3 seconds
Video Latency
2 to 3 frames
Input Resolutions
640x350@60/70/85Hz, 640x400@70/85Hz, 640x480@57/60/66/72/85Hz,
720x400@70/85Hz, 720x480@60i/60p/60Hz, 720x576@50i/50p/60Hz,
800x600@56/60/72/75/85Hz, 832x624@75Hz, 848x480@59/60Hz,
864X648@60Hz, 1024x768@43i/60/70/75/85Hz,
1152x864@60/70/75/85Hz, 1152x870@60/75Hz,
1280x720@25p/30p/50p/60p/75Hz, 1280x768@50/60 (RB)/60/75/85Hz,
1280x800@59/60/75/85Hz, 1280x960@60/75/85Hz,
1280x1024@59/60/72/75/76/85Hz, 1360x768@60Hz, 1366x768@60Hz,
1400x1050@59/60/75Hz, 1440x900@60 (RB)/60/75/85Hz,
1600x900@60 (RB)/60/75Hz, 1600x1024@60/75Hz,
1600x1200@51/59/60/65/70/75Hz, 1680x1050@59/60/75Hz,
1920x1200@59/60/65/75Hz,
1920x1080@50i/60i/24p/25p/30p/50p/60p/60Hz, 920X1080@60s,
1920X1080@50vesa, 3840x2160@24p/25p/30p/50p/50p (420)/60p/60p
(420)/60p (RB), 4096x2160@24p/25p/30p/50p/50p (420)/60p/60p (420)
Output
Resolutions
Native, 640x480@60Hz, 720x480P@60Hz, 720x576P@50Hz,
800x600@60Hz, 1024x768@60Hz, 1280x720@60Hz, 1280x768@60Hz,
1280x800@60Hz, 1280x1024@60Hz, 1360x768@60Hz,
1400x1050@60Hz, 1440x900@60Hz, 1600x1200@60Hz,
1680x1050@60Hz, 1920x1080@60Hz, 1920x1200@60Hz,
1280x720P@50/60Hz, 1920x1080P@24/25/30/50/60Hz,
4K@24/25/30Hz, 4K2K(4:2:0)@50/60Hz
Power
Consumption
48V DC, 410mA
Source
48V DC, 1.36A
Environmental
Conditions
Operating 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
Regulatory
Compliance
Safety
CE, UL
Environmental
RoHs, WEEE

Kramer Electronics Ltd.
VP-428H2 - Technical Specifications
16
Enclosure
Size
MegaTOOLS
Type
Aluminum
Cooling
Convection Ventilation
General
Net Dimensions (W, D, H)
18.8cm x 22.3cm x 2.5cm
(7.4" x 5.7" x 1 ")
Shipping Dimensions (W, D, H)
21.2cm x 35.1cm x 7.2cm
(8.4" x 13.8" x 2.8")
Net Weight
0.87kg (1.9lbs) approx.
Shipping Weight
1.43kg (3.1lbs) approx.
Accessories
Included
Power adapter and cord
Specifications are subject to change without notice at www.kramerav.com
Default Communication Parameters
RS-232
Baud Rate:
9,600
Data Bits:
8
Stop Bits:
1
Parity:
None
RS-232Command Protocol
Command Format:
ASCII protocol 3000
Example (Route the video HDMI input to the output):
#ROUTE 12,1,1<cr>
Full Factory Reset
OSD
Go to : Menu-> Setup -> Factory Reset -> press Enter to confirm
Front panel buttons
Press the Reset to XGA/1080p Button while plugging the power to
reset the machine
Input Resolutions
Resolution/Refresh Rate
DP
PC
HDMI
480I/576I
Yes
No
Yes
480P/576P
Yes
No
Yes
720P@(60/50)
Yes
No
Yes
1080I@(60/50)
Yes
No
Yes
1080P@(60/50)
Yes
No
Yes
1080P@(24/25/30)
Yes
No
Yes
640x480@(60/67/72/75/85)
Yes
Yes
Yes
800x600@(56/60/72/75)
Yes
Yes
Yes
1024x768@(60/70/75)
Yes
Yes
Yes
1280x1024@(60/75)
Yes
Yes
Yes
1280X960@60
Yes
Yes
Yes
1280X720@60
Yes
Yes
Yes
1920X1080@60
Yes
No
Yes
1600X1200@60
Yes
Yes
Yes
1280x768@60
Yes
Yes
Yes
1280x800@60
Yes
Yes
Yes
1360x768@60
Yes
Yes
Yes
1366x768@60
Yes
Yes
Yes

Kramer Electronics Ltd.
VP-428H2 - Technical Specifications
17
Resolution/Refresh Rate
DP
PC
HDMI
1400x1050@60
Yes
Yes
Yes
1600X900@60 RB
Yes
No
Yes
1680x1050@60
Yes
Yes
Yes
1920x1200@60 RB
Yes
Yes
Yes
4K2K@(24/25/30/50/60)
Yes
No
Yes
4K2K(4:2:0)@(50/60)
Yes
No
Yes
Output Resolutions
Resolution/Refresh Rate
HDBT
640x480 60Hz
Yes
800x600 60Hz
Yes
1024x768 60Hz
Yes
1280x768 60Hz
Yes
1360x768 60Hz
Yes
1280x720 60Hz
Yes
1280x800 60Hz
Yes
1280x1024 60Hz
Yes
1440x900 60Hz
Yes
1400x1050 60Hz
Yes
1680x1050 60Hz
Yes
1920x1080 60Hz
Yes
1920x1200 RB 60Hz
Yes
480P 60Hz
Yes
576P 50Hz
Yes
720P (50/60Hz)
Yes
1080P (24/25/30/50/60Hz)
Yes
4K2K (24/25/30Hz)
Yes
4K2K (4:2:0) (50/60Hz)
Yes

Kramer Electronics Ltd.
VP-428H2 - Protocol 3000
18
Protocol 3000
The VP-428H2 4K HDBT Transmitter/Scaler can be operated using the Kramer
Protocol 3000 serial commands. The command framing varies according to how you interface
with the VP-428H2.
Generally, a basic video input switching command that routes a layer 1 video signal to HDMI
out 1 from HDMI input 2 (ROUTE 1,1,2), is entered as follows:
Terminal communication software, such as Hercules:
The framing of the command varies according to the terminal communication software.
.
K-Touch Builder (Kramer software):
K-Config (Kramer configuration software):
All the examples provided in this section are based on using the K-Config software.
You can enter commands directly using terminal communication software (e.g., Hercules) by
connecting a PC to the serial or Ethernet port on the VP-428H2. To enter CR press the Enter
key (LF is also sent but is ignored by the command parser).
Commands sent from various non-Kramer controllers (e.g., Crestron) may require special
coding for some characters (such as, /X##). For more information, refer to your controller’s
documentation.