Kramer VP-451 User manual

P/N: 2900-301231 Rev 1 www.kramerAV.com
USER MANUAL
MODEL:
VP-451
HDMI / USB-C Scaler

Kramer Electronics Ltd.
VP-451 –Contents
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Contents
Introduction 1
Getting Started 1
Overview 2
Typical Applications 3
Defining VP-451 HDMI / USB-C Scaler 4
Mounting VP-451 6
Connecting VP-451 7
Connecting the Output to a Balanced/Unbalanced Stereo Audio Acceptor 8
Connecting the Remote Control Switches 8
Operating and Controlling VP-451 9
Using Front Panel Buttons 9
Using the OSD Menu 9
Upgrading the Firmware 16
Technical Specifications 17
Input Resolutions 18
Output Resolutions 18
Default EDID 19

Kramer Electronics Ltd.
VP-451 –Introduction
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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/VP-451 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 VP-451 away from moisture, excessive sunlight and dust.
Safety Instructions
Caution:
•This equipment is to be used only inside a building. It may only be connected to other
equipment that is installed inside a building.
•For products with relay terminals and GPI\O ports, please refer to the permitted rating
for an external connection, located next to the terminal or in the User Manual.
•There are no operator serviceable parts inside the unit.
Warning:
•Use only the power cord that is supplied with the unit.
•To ensure continuous risk protection, replace fuses only according to the rating
specified on the product label which located on the bottom of the unit.
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

Kramer Electronics Ltd.
VP-451 –Introduction
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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-451 HDMI / USB-C Scaler.
VP-451 is a high-performance 18G 4K digital scaler for HDMI and USB-C signals. The unit
up-scales, down-scales, and cross-scales to resolutions up to 4K@60 (4:4:4). The output
resolution can be set to automatically follow the native resolution of the sink or set manually to
a custom resolution.
VP-451 provides exceptional quality, advanced and user-friendly operation, and flexible
connectivity.
Exceptional Quality
•High-Performance Professional Scaler –Supports HDR10 and HDCP 2.2/1.4, and
features input auto–switching, constant sync on the output even if the input video signal
is lost or interrupted, and a built-in ProcAmp for convenient signal adjustment.
•Automatic Display Control –Supports CEC that enables automatically turning the display
on and off.
•HDMI Support –HDR, CEC, 4K@60, Deep Color / x.v.Color™, 7.1 PCM, Dolby TrueHD
and DTS-HD as specified in HDMI 2.0.
Advanced and User-friendly Operation
•Fast, Smooth Manual and Auto Switching Between Sources –Select the USB Type-C or
one of the HDMI inputs, or configure the device to automatically select the active source.
•Convenient Unit Control –Control the unit using an OSD (On-Screen Display) menu via
front panel buttons and input selector, video freeze and resolution reset front panel
buttons. Additionally, connect to the contact closure connector for remote switching of
sources. All settings are saved in non-volatile memory.
•USB-C Powering –Provides up to 60W of power via the USB-C input, making it suitable
for charging USB-C devices.
•User-Friendly Operation –LED indicator for each input and for power status. Local
firmware upgrade via the USB type-A port ensures lasting, field-proven deployment.
•Easy Installation –Compact MegaTOOLS® fan-less enclosure for surface mounting or
side-by-side mounting of 2 units in a 1U rack space with the recommended rack adapter.
Flexible Connectivity
•Flexible Analog Audio Embedding and Extraction (De-embedding) –The user can select
the unbalanced analog audio input to embed into the HDMI output signal. On the output,
the user can select to extract the audio signal and output it as balanced analog audio.

Kramer Electronics Ltd.
VP-451 –Introduction
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Typical Applications
VP-451 is ideal for the following typical applications:
•Meeting rooms and huddle spaces.
•Conversion between video formats.
•Charging USB-C devices.
Controlling your VP-451
Control your VP-451 via the front panel buttons and via contact closure switches.

Kramer Electronics Ltd.
VP-451 –Defining VP-451 HDMI / USB-C Scaler
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Defining VP-451 HDMI / USB-C
Scaler
This section defines VP-451.
Figure 1: VP-451 HDMI / USB-C Scaler Front Panel
#
Feature
Function
ON LED
Lights green when the unit is powered.
INPUT Button
Press to cycle the input between USB-C, HDMI 1 and HDMI 2.
USB-C LED
Lights green when USB-C is selected.
HDMI 1 LED
Lights green when HDMI 1 is selected.
HDMI 2 LED
Lights green when HDMI 2 is selected.
MENU Button
Press to enter/escape the on-screen display (OSD) menu.
When not in OSD, press together with the –button to reset to 1080p (RESET TO
1080P).
ENTER Button
In OSD, press to choose the highlighted menu item.
When not in OSD, press together with the + button to reset to XGA (RESET TO
XGA).
–Button
In OSD, press to move backward 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/unfreeze the display.
PROG USB
Connector
Connect to a USB memory stick for upgrading the firmware (see Upgrading the
Firmware on page 16) and uploading EDID from an external file (see Uploading
EDID from an External File on page 14).
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Kramer Electronics Ltd.
VP-451 –Defining VP-451 HDMI / USB-C Scaler
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Figure 2: VP-451 HDMI / USB-C Scaler Rear Panel
#
Feature
Function
AUDIO IN 3.5mm Mini Jack
Connect to an unbalanced stereo audio PC source. Can also be
selected as the audio input (instead of the HDMI and USB-C
embedded audio inputs).
USB-C IN USB Type C Port
Connect to a USB type-C audio-video source.
HDMI IN 1 Connector
Connect to an HDMI source.
HDMI IN 2 Connector
Connect to an HDMI source.
HDMI OUT Connector
Connect to an HDMI acceptor.
AUDIO OUT Terminal Block
Connector
Connect to a balanced stereo audio acceptor.
REMOTE 4-pin Terminal Block
Connector
Connect to contact closure switches (by momentary contact
between the desired pin and GND pin) to select an input
(see Connecting the Remote Control Switches on page 8).
24V DC
24V DC connector for powering the unit.
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Kramer Electronics Ltd.
VP-451 –Mounting VP-451
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Mounting VP-451
This section provides instructions for mounting VP-451. 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 VP-451 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 VP-451 on a rack
Mount the unit in a rack using the recommended rack adapter
(see www.kramerav.com/product/VP-451).
To mount the VP-451 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/VP-451.

Kramer Electronics Ltd.
VP-451 –Connecting VP-451
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Connecting VP-451
Always switch off the power to each device before connecting it to your VP-451. After
connecting your VP-451, connect its power and then switch on the power to each device.
Figure 3: Connecting to the VP-451 Rear Panel
To connect the VP-451 as illustrated in the example in Figure 3:
1. Connect a USB source (for example, a mobile device) to the USB-C IN connector .
2. Connect an HDMI source (for example, a laptop) to the HDMI IN 1 connector .
3. Connect an HDMI source (for example, a Blu-ray player) to the HDMI IN 2
connector .
4. Connect the HDMI OUT connector to an HDMI acceptor (for example, a display).
5. Connect the AUDIO OUT 5-pin terminal block connector to a balanced stereo audio
acceptor (for example, active speakers).
6. Connect the REMOTE 4-pin terminal block connector to contact closure switches
(for example, Kramer RC-21TB).
7. Connect the power adapter to VP-451 and to the mains electricity (not shown in
Figure 3).
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Kramer Electronics Ltd.
VP-451 –Connecting VP-451
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Connecting the Output to a Balanced/Unbalanced
Stereo Audio Acceptor
The following are the pinouts for connecting the output to a balanced or unbalanced stereo
audio acceptor:
Figure 4: Connecting to a Balanced Stereo Audio
Acceptor
Figure 5: Connecting to an Unbalanced Stereo Audio
Acceptor
Connecting the Remote Control Switches
Momentarily connect the desired pin to the GND pin to select an input:
Pin Name
Function
USB-C
Select the USB-C input.
HDMI 1
Select the HDMI 1 input.
HDMI 2
Select the HDMI 2 input.