Kramer VM-3UHD User manual

USER MANUAL
MODEL:
VM-3UHD
1:3 HDMI DA
P/N: 2900-300480 Rev 1

VM-3UHD – Contents
i
Contents
1Introduction 1
2Getting Started 2
2.1 Achieving the Best Performance 2
2.2 Safety Instructions 2
2.3 Recycling Kramer Products 3
3Overview 4
3.1 Defining the VM-3UHD 1:3 HDMI DA 5
4Connecting the VM-3UHD 6
4.1 Acquiring an EDID 8
5Default EDID 9
6Technical Specifications 11
7Protocol 3000 12
7.1 Syntax 12
7.2 Kramer Protocol 3000 Commands 16
8Packet Protocol Structure 26
8.1 Using the Packet Protocol 26
8.2 Calculating the CRC 27
9Parameters 28
9.1 Stage 28
9.2 EDID Source 28
9.3 Signal Validation 28
9.4 HDCP Types 28
Figures
Figure 1: VM-3UHD 1:3 HDMI DA 5
Figure 2: Connecting the VM-3UHD 1:3 HDMI DA 7

VM-3UHD – 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 VM-3UHD 1:3 HDMI DA, which is
ideal for the following typical applications:
Boardrooms and meeting rooms
Presentation and multimedia applications
Home theater
Rental and staging

2
VM-3UHD - 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
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 neighbouring electrical appliances that may
adversely influence signal quality
Position your VM-3UHD 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 Kramer Electronics power supply that is
provided with the unit
Warning:
Disconnect the power and unplug the unit from the wall
before installing

VM-3UHD – 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

4
VM-3UHD - Overview
3 Overview
The Kramer TOOLS®VM-3UHD is a high-quality 1:3 HDMI distributor that takes
one HDMI input, equalizes and reclocks the signal and distributes it to three
identical outputs. The VM-3UHD distributes signals having resolutions up to
4Kx2K and including WUXGA and 1080p.
In particular, the VM-3UHD features:
A maximum data rate of 10.2Gbps (3.4Gbps per graphic channel)
HDMI support for Deep Color, x.v.Color™, Lip Sync, HDMI
Uncompressed Audio Channels, Dolby TrueHD, DTS-HD, CEC
HDCP compliance
Kramer Equalization & re-Klocking™ Technology that rebuilds the digital
signal integrity to travel longer distances
I-EDIDPro™ Kramer Intelligent EDID Processing™, an intelligent EDID
handling and processing algorithm that ensures Plug and Play operation
for HDMI systems
A default EDID for fast and efficient connection of the unit
The default EDID feature lets you connect the VM-3UHD without having to connect
a display to the output
3D pass-through
A USB port for firmware upgrading
Software support for Protocol 3000, EDID Designer and K-Upload
A compact TOOLS®enclosure with a 5V DC power source

VM-3UHD – Overview
5
3.1 Defining the VM-3UHD 1:3 HDMI DA
This section defines the VM-3UHD.
Figure 1: VM-3UHD 1:3 HDMI DA
#
Feature
Function
1
PROGRAM USB Connector
Connect to a PC to perform firmware upgrades (via
K-Upload) and work with the EDID Designer
K-Upload and EDID Designer can be downloaded
from our Web site
2
EDID SETUP Button
Press to capture the input EDID or select the default
EDID (see Section 4.1)
3
IN LED
Lights when an active input signal is detected
4
OUT 1-3 LEDS
Lights when an active output acceptor is detected
5
ON LED
Lights when the device is powered on
6
HDMI IN Connector
Connects to the HDMI source
7
HDMI OUT 1-3 Connectors
Connect to up to 3 HDMI acceptors
8
5V DC Connector
Connects to the 5V DC power supply

6
VM-3UHD - Connecting the VM-3UHD
4 Connecting the VM-3UHD
Always switch off the power to each device before connecting it to
your VM-3UHD. After connecting your VM-3UHD, connect its power
and then switch on the power to each device.
You do not have to connect all the inputs and outputs, connect only
those that are required.
Connect the VM-3UHD as illustrated in the example in Figure 2:
1. Connect an HDMI input source (for example, a DVD player) to the
HDMI IN connector.
2. Connect the three OUTPUT connectors to up to three HDMI acceptors,
as follows:
Not all outputs need to be connected.
HDMI OUT 1 connector to HDMI acceptor 1 (for example, an LCD
TV)
HDMI OUT 2 connector to HDMI acceptor 2 (for example, plasma
display 1)
HDMI OUT 3 connector to HDMI acceptor 3 (for example, plasma
display 2)
3. Connect the 5V DC power adapter to the power socket unit and then
connect the adapter to the mains electricity (not shown in Figure 2).
The ON LED lights.

VM-3UHD – Connecting the VM-3UHD
7
Figure 2: Connecting the VM-3UHD 1:3 HDMI DA

8
VM-3UHD - Connecting the VM-3UHD
4.1 Acquiring an EDID
To acquire an EDID, press the EDID SETUP button as follows:
1. The first press of the EDID SETUP button displays the present EDID
status similar to that shown in the next step.
2. The second press of EDID SETUP enters the read mode and each
additional press cycles through the source options:
OUT 1 -> OUT 2 -> OUT 3 -> all LEDs flash for a default EDID.
3. When the desired EDID source is reached, release the EDID SETUP
button.
The VM-3UHD reads the EDID for a few seconds. When finished, all
LEDS return to display the present output connection status.
If an unconnected output is chosen or the EDID cannot be read, the VM-3UHD
loads the default EDID.
The VM-3UHD toggles between “Normal” and “Force RGB” modes.
In “Force RGB” mode, the read EDID is rewritten to identify only RGB support.
To toggle, press the EDID button for three seconds.
After setting Force RGB mode you must re-acquire the EDID to update
the Force RGB change.
Powering on the device identifies the mode as follows:
In “Normal mode” (meaning no forcing RGB), the LEDs flash once
In “Force RGB mode”, the LEDS flash four times.
Note: Force RGB modifies the EDID saved on the input to not support YUV format.
In case of a pink display, use the Force RGB mode.

VM-3UHD – Default EDID
9
5 Default EDID
Model name............... VM-3UHD
Manufacturer............. KMR
Plug and Play ID......... KMR0672
Data string.............. Default-EDID
Serial number............ 2
Manufacture date......... 2012, ISO week 255
Filter driver............ None
-------------------------
EDID revision............ 1.3
Input signal type........ Digital
Color bit depth.......... Undefined
Display type............. RGB color
Screen size.............. 520 x 320 mm (24.0 in)
Power management......... Standby, Suspend, Active off/sleep
Extension blocs.......... 1 (CEA-EXT)
-------------------------
DDC/CI................... Not supported
Color characteristics
Default color space...... Non-sRGB
Display gamma............ 2.20
Red chromaticity......... Rx 0.674 - Ry 0.319
Green chromaticity....... Gx 0.188 - Gy 0.706
Blue chromaticity........ Bx 0.148 - By 0.064
White point (default).... Wx 0.313 - Wy 0.329
Additional descriptors... None
Timing characteristics
Horizontal scan range.... 30-83kHz
Vertical scan range...... 56-76Hz
Video bandwidth.......... 170MHz
CVT standard............. Not supported
GTF standard............. Not supported
Additional descriptors... None
Preferred timing......... Yes
Native/preferred timing.. 1280x720p at 60Hz (16:10)
Modeline............... "1280x720" 74.250 1280 1390 1430 1650 720 725 730 750 +hsync +vsync
Standard timings supported
720 x 400p at 70Hz - IBM VGA
640 x 480p at 60Hz - IBM VGA
640 x 480p at 75Hz - VESA
800 x 600p at 60Hz - VESA
800 x 600p at 75Hz - VESA
1024 x 768p at 60Hz - VESA
1024 x 768p at 75Hz - VESA
1280 x 1024p at 75Hz - VESA
1280 x 1024p at 60Hz - VESA STD
1600 x 1200p at 60Hz - VESA STD
1152 x 864p at 75Hz - VESA STD
EIA/CEA-861 Information
Revision number.......... 3
IT underscan............. Supported
Basic audio.............. Supported
YCbCr 4:4:4.............. Supported
YCbCr 4:2:2.............. Supported
Native formats........... 1
Detailed timing #1....... 1920x1080p at 60Hz (16:10)
Modeline............... "1920x1080" 148.500 1920 2008 2052 2200 1080 1084 1089 1125 +hsync +vsync
Detailed timing #2....... 1920x1080i at 60Hz (16:10)
Modeline............... "1920x1080" 74.250 1920 2008 2052 2200 1080 1084 1094 1124 interlace +hsync
+vsync
Detailed timing #3....... 1280x720p at 60Hz (16:10)
Modeline............... "1280x720" 74.250 1280 1390 1430 1650 720 725 730 750 +hsync +vsync
Detailed timing #4....... 720x480p at 60Hz (16:10)
Modeline............... "720x480" 27.000 720 736 798 858 480 489 495 525 -hsync -vsync

10
VM-3UHD - Default EDID
CE video identifiers (VICs) - timing/formats supported
1920 x 1080p at 60Hz - HDTV (16:9, 1:1)
1920 x 1080i at 60Hz - HDTV (16:9, 1:1)
1280 x 720p at 60Hz - HDTV (16:9, 1:1) [Native]
720 x 480p at 60Hz - EDTV (16:9, 32:27)
720 x 480p at 60Hz - EDTV (4:3, 8:9)
720 x 480i at 60Hz - Doublescan (16:9, 32:27)
720 x 576i at 50Hz - Doublescan (16:9, 64:45)
640 x 480p at 60Hz - Default (4:3, 1:1)
NB: NTSC refresh rate = (Hz*1000)/1001
CE audio data (formats supported)
LPCM 2-channel, 16/20/24 bit depths at 32/44/48 kHz
CE vendor specific data (VSDB)
IEEE registration number. 0x000C03
CEC physical address..... 1.0.0.0
Maximum TMDS clock....... 165MHz
CE speaker allocation data
Channel configuration.... 2.0
Front left/right......... Yes
Front LFE................ No
Front center............. No
Rear left/right.......... No
Rear center.............. No
Front left/right center.. No
Rear left/right center... No
Rear LFE................. No
Report information
Date generated........... 11/11/2014
Software revision........ 2.60.0.972
Data source.............. Real-time 0x0032
Operating system......... 6.1.7601.2.Service Pack 1

VM-3UHD – Technical Specifications
11
6 Technical Specifications
INPUT:
1 HDMI connector
OUTPUTS:
3 HDMI connectors
PORT:
1 USB for firmware upgrade
MAX. DATA RATE:
10.2Gbps (3.4Gbps per graphic channel)
COMPLIANCE WITH HDMI
STANDARD:
Supports HDMI and HDCP
CONTROLS:
EDID Setup button
INDICATOR LEDs:
IN, OUT 1 to 3 LEDs
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
POWER CONSUMPTION:
5V DC, 1.1A
DIMENSIONS:
12cm x 7.15cm x 2.4cm (4.73" x 2.82" x 0.95") W, D, H
WEIGHT:
0.17kg (0.37lb)
SHIPPING DIMENSIONS:
23.2cm x 12cm x 8.9cm (9.41" x 4.73" x 3.51") W, D, H
SHIPPING WEIGHT:
0.67kg (0.67lb)
INCLUDED ACCESSORIES:
Power supply
Specifications are subject to change without notice
For the most updated resolution list, go to our Web site

12
VM-3UHD - Protocol 3000
7 Protocol 3000
The VM-3UHD can be operated using serial commands from a PC, remote
controller, or touch screen. The unit communicates using the default Kramer
Protocol 3000.
This section describes:
Kramer Protocol 3000 syntax (see Section 7.1)
Kramer Protocol 3000 commands (see Section 7.2)
7.1 Syntax
With Kramer Protocol 3000 you can control a device from any standard
terminal software (for example, the Windows® HyperTerminal Application) or
from TCP/UDP clients connected to default TCP port 5000 or UDP port 50000
(port numbers can been changed by the user). RS-232/RS-485
communications protocol uses a data rate of 115200 bps, no parity, 8 data
bits, and 1 stop bit.
7.1.1 Host Message Format
Start
Address (opt)
Body
Delimiter
#
Destination_id@
Message
CR
7.1.1.1 Simple Command
Command string with only one command without addressing:
Start
Body
Delimiter
#
Command SP Parameter_1,Parameter_2,…
CR

VM-3UHD – Protocol 3000
13
7.1.1.2 Command String
Formal syntax with commands concatenation and addressing:
Start
Address
Body
Delimiter
#
Destination_id@
Command_1
Parameter1_1,Parameter1_2,…|
Command_2
Parameter2_1,Parameter2_2,…|
Command_3
Parameter3_1,Parameter3_2,…|
CR
7.1.2 Device Message Format
Start
Address (opt)
Body
Delimiter
~
Sender_id@
Message
CR LF
7.1.2.1 Device Long Response
Echoing command:
Start
Address (opt)
Body
Delimiter
~
Sender_id@
Command SP [Param1,Param2 …] result
CR LF
CR = Carriage return (ASCII 13 = 0x0D)
LF = Line feed (ASCII 10 = 0x0A)
SP = Space (ASCII 32 = 0x20)
7.1.3 Command Terms
Command
A sequence of ASCII letters ('A'-'Z', 'a'-'z' and '-').
Command and parameters must be separated by at least one space.
Parameters
A sequence of alphameric ASCII characters ('0'-'9','A'-'Z','a'-'z' and some
special characters for specific commands). Parameters are separated by
commas.
Message string
Every command entered as part of a message string begins with a message
starting character and ends with a message closing character.
Note: A string can contain more than one command. Multiple commands are
separated by a pipe ('|') character.

14
VM-3UHD - Protocol 3000
Message starting character
'#' - For host command/query
'~' - For machine response or machine command performed by keystroke
operation on the front panel or IR remote controller.
Device address (Optional when directly connected to the device)
K-Net Device ID or MACHINE NUMBER followed by '@'
(ex. #02@CR LF )
Query sign
'?' follows some commands to define a query request.
All outputs sign
'*' defines all outputs.
Message closing character
CR - For host messages; carriage return (ASCII 13)
CR LF - For machine messages; carriage return (ASCII 13) + line-feed (ASCII
10)
Command chain separator character
When a message string contains more than one command, a pipe ('|')
character separates each command.
Spaces between parameters or command terms are ignored.
7.1.4 Entering Commands
You can directly enter all commands using a terminal with ASCII
communication software, such as HyperTerminal, Hercules, etc. Connect the
terminal to the serial, Ethernet, or USB port on the Kramer device. To enter
CR, press the Enter key. (LF is also sent but is ignored by the command
parser).
For commands sent from some non-Kramer controllers such as Crestron,
some characters require special coding (such as, /X##). Refer to the controller
manual.

VM-3UHD – Protocol 3000
15
7.1.5 Bidirectional Definition
All commands are bidirectional. That is, if the device receives the code, it
performs the instruction. If the instruction is performed (due to a keystroke
operation on the front panel or IR controller) these codes are sent to the PC or
other RS-232 / Ethernet / USB controller.
7.1.6 Command Chaining
Multiple commands can be chained in the same string. Each command is
delimited by a pipe character ('|'). When chaining commands, enter the
message starting character and the message closing character once only,
at the beginning of the string and at the end.
Commands in the string do not execute until the closing character is entered.
A separate response is sent for every command in the chain.
7.1.7 Maximum String Length
64 characters (except for special commands that are defined in the command
syntax description).

16
VM-3UHD - Protocol 3000
7.2 Kramer Protocol 3000 Commands
Command
Description
Type
Permission
#
Protocol handshaking
System-mandatory
End User
BUILD-DATE?
Get device build date
System-mandatory
End User
CPEDID
Copy EDID data from the output to
the input EEPROM
EDID Handling
End User
DISPLAY?
Get output HPD status
Switch
End User
FACTORY
Reset to factory default configuration
System-mandatory
End User
GEDID
Set/get EDID data
EDID Handling
End User
HDCP-STAT?
Get HDCP signal status
System
End user
HELP
Get command list
System-mandatory
End User
MODEL?
Get device model
System-mandatory
End User
NAME
Set/get machine (DNS) name
System
Administrator
NAME-RST
Reset machine name to factory
default (DNS)
System
Administrator
PROT-VER?
Get device protocol version
System-mandatory
End User
RESET
Reset device
System-mandatory
Administrator
SIGNAL?
Read if input is valid
System
End user
SN?
Get device serial number
System-mandatory
End User

VM-3UHD – Protocol 3000
17
Command - #
Command Type - System-mandatory
Command Name
Permission
Transparency
Set:
#
End User
Public
Get:
-
-
-
Description
Syntax
Set:
Protocol handshaking
#␍
Get:
-
-
Response
~nn@␠OK␍␊
Parameters
Response Triggers
Notes
Validates the Protocol 3000 connection and gets the machine number
Step-in master products use this command to identify the availability of a device
Command - BUILD-DATE
Command Type - System-mandatory
Command Name
Permission
Transparency
Set:
-
-
-
Get:
BUILD-DATE?
End User
Public
Description
Syntax
Set:
Get device build date
#BUILD-DATE␍
Get:
-
-
Response
~nn@BUILD-DATE␠date␠time␍␊
Parameters
date -Format: YYYY/MM/DD where YYYY = Year, MM = Month, DD = Day
time -Format: hh:mm:ss where hh = hours, mm = minutes, ss = seconds
Response Triggers
Notes