Kramer VM-24HDCP User manual

Kramer Electronics, Ltd.
USER MANUAL
Model:
VM-24HDCP
2 Input 1:4 DVI Distributor

Contents
i
Contents
1Introduction 1
2Getting Started 1
2.1 Quick Start 2
3Overview 3
3.1 About HDCP 3
3.2 Defining EDID 4
3.3 Recommendations for Best Performance 4
4Your VM-24HDCP 2 Input 1:4 DVI Distributor 4
4.1 Using the IR Transmitter 6
5Installing in a Rack 7
6Connecting the VM-24HDCP 8
6.1 Connecting via RS-232 (for example, using a PC) 10
6.2 Operating the VM-24HDCP 10
6.3 Using the EDID Buttons 10
6.3.1 Acquiring / Changing the EDID from One Output 11
6.3.2 Acquiring the Default EDID 12
6.3.3 Acquiring the Auto-mix EDID from the Connected Outputs 12
7Technical Specifications 13
8Communication Protocol 14
Figures
Figure 1: VM-24HDCP 2 Input 1:4 DVI Distributor 5
Figure 2: Connecting a VM-24HDCP 2 Input 1:4 DVI Distributor 9
Figure 3: Connecting a PC 10
Tables
Table 1: VM-24HDCP 2 Input 1:4 DVI Distributor Features 6
Table 2: The EDID Modes 11
Table 3: VM-24HDCP Technical Specifications 13
Table 4: Protocol Definitions 14
Table 5: Instruction Codes for Protocol 2000 15

Introduction
1
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 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 11 groups1
Thank you for purchasing your Kramer VM-24HDCP 2 Input 1:4 DVI
Distributor, which is ideal for:
that are clearly
defined by function.
•Home theater, presentation and multimedia applications
•Rental and staging
The package includes the following items:
•VM-24HDCP
•Power cord
•Infrared remote control transmitter
•This user manual2
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
•Use Kramer high-performance high-resolution cables3
1 GROUP 1: Distribution Amplifiers; GROUP 2: Switchers and Matrix Switchers; 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 Products
2 Download up-to-date Kramer user manuals from the Internet at this URL: http://www.kramerelectronics.com
3 The complete list of Kramer cables is on our Web site at http://www.kramerelectronics.com

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Getting Started
2
2.1 Quick Start
This quick start chart summarizes the basic setup and operation:

Overview
3
3
3 Overview
The VM-24HDCP is an HDCP compliant distribution amplifier for DVI-D
signals. The unit accepts one of two DVI inputs, and distributes the selected
signal to four outputs.
The VM-24HDCP features:
•Up to 2.25Gbps bandwidth per graphic channel1
•HDTV compatibility and HDCP compliance
•I-EDIDPro™ Kramer Intelligent EDID Processing™, an
intelligent EDID handling and processing algorithm that ensures
Plug and Play operation for DVI systems
•Acquisition of the EDID from one output, from several connected
outputs (Auto-mix) or it acquires the default EDID for fast and
efficient connection of the unit2
•A 19" 1U rack mountable enclosure and is fed from a 100-240
VAC universal switching power supply
Control the VM-24HDCP via:
•The front panel buttons
•The infrared remote control transmitter, RC-IR3
•The infrared remote extension cable transmitter, see section 4.1
•RS-232 serial commands transmitted by a touch screen system,
PC, or other serial controller
3.1 About HDCP
The High-Bandwidth Digital Content Protection (HDCP) standard3
protects
digital video and audio signals transmitted over DVI or HDMI connections
between two HDCP-enabled devices to eliminate the reproduction of
copyrighted material. To protect copyright holders (such as movie studios)
from having their programs copied and shared, the HDCP standard provides
for the secure and encrypted transmission of digital signals.
1 Suitable for resolutions up to UXGA at 60Hz, and for all HD resolutions
2 Lets you use the EDID default value when no display from which to read the EDID is connected
3 Developed by Intel

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Your VM-24HDCP 2 Input 1:4 DVI Distributor
4
3.2 Defining EDID
The Extended Display Identification Data (EDID1
3.3 Recommendations for Best Performance
) is a data-structure,
provided by a display, to describe its capabilities to an HDCP source. The
EDID enables the VM-24HDCP to “know” what kind of monitor is
connected to the output. The EDID includes the manufacturer’s name, the
product type, the timing data supported by the display, the display size,
luminance data and (for digital displays only) the pixel mapping data.
To achieve the best performance:
•Connect only good quality connection cables, thus avoiding
interference, deterioration in signal quality due to poor matching,
and elevated noise levels (often associated with low quality
cables)
•Avoid interference from neighboring electrical appliances and
position your VM-24HDCP away from moisture, excessive
sunlight and dust
4 Your VM-24HDCP 2 Input 1:4 DVI Distributor
Figure 1illustrates the VM-24HDCP and Table 1defines the front and rear
panels.
1 Defined by a standard published by the Video Electronics Standards Association (VESA)

Your VM-24HDCP 2 Input 1:4 DVI Distributor
5
Figure 1: VM-24HDCP 2 Input 1:4 DVI Distributor

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Your VM-24HDCP 2 Input 1:4 DVI Distributor
6
Table 1: VM-24HDCP 2 Input 1:4 DVI Distributor Features
#
Feature
Function
1 IR Receiver The yellow LED is illuminated when receiving signals from the
Kramer infrared remote control transmitter
2 POWER LED The green LED is illuminated when the unit is turned ON
3 SELECT IN 2 Button
1
Press to select source 2 and distribute this signal to the outputs
4 IN 1 Button
1
Press to select source 1 and distribute this signal to the outputs
5 EDID Buttons2READ
3Press, after pressing the EDID SELECT button, to acquire the EDID
Press to show the EDID status
6 SELECT Select the EDID mode (One Output, Default or Auto-mix)
7 OUTPUT STATUS LEDs
(from 1 to 4) LEDs light when an output(s) is connected and active; LEDs flash to indicate the type of EDID acquired (see Section 6.3) or
when connecting a non-HDCP display while providing HDCP
content to the VM-24HDCP
8 INPUT 1 DVI Connector Connects to the DVI source 1
9 INPUT 2 DVI Connector Connects to the DVI source 2
10 OUTPUT DVI ConnectorsConnects to the DVI acceptor (from 1 to 4)
11 RS-232 9-pin D-sub Port Connects to the PC or the Remote Controller4
12 REMOTE IR5Connects to an external IR receiver unit for controlling the machine
via an IR remote controller instead of using the front panel IR
receiver
64.1(See Section )
13 Power Connector with Fuse AC connector enabling power supply to the unit
14 POWER Switch Illuminated switch for turning the unit ON or OFF
4.1 Using the IR Transmitter
You can use the RC-IR3 IR transmitter to control the machine via the built-
in IR receiver on the front panel or, instead, via an optional external IR
receiver7. The external IR receiver can be located 15 meters away from the
machine. This distance can be extended to up to 60 meters when used with
three extension cables8
Before using the external IR receiver, be sure to arrange for your Kramer
dealer to insert the internal IR connection cable15F
9with the 3.5mm connector
that fits into the REMOTE IR opening on the rear panel. Connect the
external IR receiver to the REMOTE IR 3.5mm connector.
1 Illuminates when selected and there is a signal; blinks when selected but there is no signal
2 See Section 6.3
3 Illuminates when configuring the EDID
4 Via a null-modem connection
5 Covered by a cap. The 3.5mm connector at the end of the internal IR connection cable fits through this opening
6 Optional. Can be used instead of the front panel (built-in) IR receiver to remotely control the machine (only if the internal
IR connection cable has been installed)
7 Model: C-A35M/IRR-50
8 Model: C-A35M/A35F-50
9 P/N: 505-70434010-S

Installing in a Rack
7
7
5 Installing in a Rack
.
This section provides instructions for rack mounting the unit.

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Connecting the VM-24HDCP
8
6 Connecting the VM-24HDCP
To connect the VM-24HDCP, as illustrated in the example in Figure 2, do
the following1
1. Connect
:
2 3
the two DVI sources (for example, a DVD player and a set top
box) to the INPUT 1 and INPUT 2 connectors, respectively.
2. Connect the DVI OUTPUT connectors3
OUTPUT 1 connector to acceptor 1 (for example, a plasma
display)
to up to four DVI acceptors, using
Kramer DVI cables. In this example, connect the:
OUTPUT 2 connector to acceptor 2 (for example, an LCD TV)
OUTPUT 3 connector to acceptor 3 (for example, an LCD TV)
OUTPUT 4 connector to acceptor 4 (for example, a plasma
display)
3. If required, connect a PC and/or controller to the RS-232 port (see Section
6.1).
4. Connect the power cord to the mains electricity (not shown in Figure 2).
5. If required, acquire the EDID (see Section 6.3).
1 Switch OFF the power on each device before connecting it to your VM-24HDCP. After connecting your VM-24HDCP,
switch on its power and then switch on the power on each device
2 Using the Kramer HDCP copper cables (C-FODM/FODM)
3 As required. Up to two inputs and four outputs can be connected. Not all inputs and outputs need to be connected