P/N: 2900-300653 Rev 1 www.kramerAV.com
USER MANUAL
MODEL:
VP‑427H2
4K HDBaseT Receiver/Scaler
Kramer Electronics Ltd.
VP‑427H2 – Contents
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Contents
Introduction 1
Getting Started 1
Overview 2
Typical Applications 3
Controlling your VP‑427H2 3
Defining VP‑427H2 4K HDBaseT Receiver/Scaler 4
Connecting VP‑427H2 5
Connecting to VP‑427H2 via RS-232 6
Operating VP‑427H2 7
Front Panel Buttons 7
OSD Menu 7
Firmware Upgrade 11
Technical Specifications 12
Default Communication Parameters 13
Input to Output Resolutions 13
Kramer Electronics Ltd.
VP‑427H2 – 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/VP-427H2 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‑427H2 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 Kramer Electronics power supply that is provided with the unit.
Warning: Disconnect the power and unplug the unit from the wall before installing.
Kramer Electronics Ltd.
VP‑427H2 – Introduction
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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‑427H2 4K HDBaseT Receiver/Scaler.
VP‑427H2 is a high-performance receiver/scaler for extended-reach HDBaseT twisted pair,
HDMI™, bidirectional RS-232 and IR signals. The unit receives an HDBaseT signal that it
converts to HDMI and passes Ethernet, IR and RS-232 signals. It also de-embeds and
outputs an unbalanced stereo audio signal, and up- or down-scales the picture to match the
resolution of the HDMI monitor.
VP‑427H2 is housed in a compact, Kramer MegaTOOL™ enclosure which can be mounted
side by side in a 19-inch rack adapter.
VP‑427H2 provides exceptional quality, advanced and user-friendly operation, and flexible
control.
Exceptional Quality
• Max. Output Resolution (HDMI) – Up- and down-scales to any resolution. (Maximum
resolution: 4K@60Hz (4:4:4)).
• Max. Input Resolution (HDBaseT) – HDBaseT input resolution up to 4K@60Hz (4:2:0).
• Supports HDMI 2.0 and HDCP 1.4 / 2.2.
• Audio Support – Embedded and analog (supporting LPCM 2CH) for the output.
• HDBaseT Data Tunneling – Supports Ethernet tunneling, as well as bidirectional
tunneling for RS-232 and IR control.
• On-Screen Display (OSD) – For easy setup and adjustment, accessible via the
front-panel buttons.
• Constant Sync – Maintains sync on the output, even if the input video signal is lost or
interrupted.
• System Range – Up to 100m (328ft) at 4K.
Advanced and User-friendly Operation
• Control of scaler via OSD menu and navigation buttons.
• Fast reset to XGA / 1080P output resolution.
• Bi-directional RS-232 on 9-pin D-SUB connector.
Kramer Electronics Ltd.
VP‑427H2 – Introduction
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• HDMI video and audio.
• Built-in video Proc-Amp – control of color, hue, sharpness, contrast, and brightness.
• Advanced EDID management.
• Constant Sync – Maintains sync on the output, even if input video signal is lost or
interrupted.
• Audio – Unbalanced stereo and embedded audio output.
• Firmware Upgrade – Via USB-A port.
• Non-volatile memory that retains the last settings after switching the power off and then
on again.
Flexible Connectivity
• HDBT tunneling of Ethernet in the receiver (in addition to the current IR and RS-232
tunneling).
• A FREEZE button, RESET TO XGA/1080P buttons (to hardware-reset the output
resolution).
• Analog stereo audio output.
• Embedded audio on the HDMI output.
• IR input and output port tunneling.
• RS-232 port tunneling.
Typical Applications
VP‑427H2 is ideal for the following typical applications:
• Educational – Classrooms, lecture theaters.
• Projection systems in conference rooms, boardrooms, hotels and churches.
• Home theatre up-scaling.
• Rental and staging.
Controlling your VP‑427H2
Control your VP‑427H2 directly via the front panel push buttons (see Front Panel Buttons
on page 7), with on-screen menus (OSD Menu on page 7).
Kramer Electronics Ltd.
VP‑427H2 – Defining VP‑427H2 4K HDBaseT Receiver/Scaler
4
Defining VP‑427H2 4K HDBaseT Receiver/Scaler
This section defines VP‑427H2.
#
Feature
Function
PROG USB Connector
Connects to a USB memory stick for programming upgrade.
ON LED
Lights green when the unit is powered on.
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.
–
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.
HDBT IN RJ-45 Connector
Connects to an HDBaseT transmitter.
IR IN 3.5mm Mini Jack
Connects to an IR sensor.
IR OUT 3.5mm Mini Jack
Connects to an IR emitter.
RS-232 9-pin D-sub Connector
Connects to a serial controller or device to embed/de-embed control
commands in the HDBaseT data stream.
HDMI OUT Connector
Connects to an HDMI acceptor.
AUDIO OUT 3.5mm Mini Jack
Connects to an unbalanced stereo audio acceptor.
ETHERNET RJ-45 Connector
Connect to a PC via a LAN.
5V DC
+5V DC connector for powering the unit.
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HDMI Licensing Administrator, Inc.