Kramer VM-4DT User manual

P/N: 2900-300799 Rev 1
USER MANUAL
MODEL:
VM-4DT
1:4 HDBT Distributor

VM-4DT - Contents
i
Contents
Introduction 1
Getting Started 1
Overview 2
Typical Applications 3
About HDBaseT™ Technology 3
Using Twisted Pair Cable for HDBT 3
Defining the VM-4DT 1:4 HDBT Distributor 4
Connecting the VM-4DT 5
Operating the VM-4DT 6
Routing the IR and RS-232 Signals 6
Acquiring an EDID 9
Upgrading the Firmware 10
Default EDID 11
Technical Specifications 13
Default Communication Parameters 14
Protocol 3000 15
Understanding Protocol 3000 16
Kramer Protocol 3000 Syntax 17
Protocol 3000 Commands 18

Kramer Electronics Ltd.
VM-4DT - 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 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.
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.
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 VM-4DT 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.
VM-4DT - Introduction
2
Safety Instructions
Caution:
There are no operator serviceable parts inside the unit
.
Warning:
Use only the power cord
that is supplied with the unit.
Warning:
Do not open the unit. High voltages can cause electrical shock! Servicing by
qualified personnel
only.
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
Overview
Congratulations on purchasing your Kramer VM-4DT 1:4 HDBT Distributor.
VM-4DT is a high-quality integrated extension product featuring a long-reach 4K@60Hz (4:2:0)
HDBaseT extender distributor that takes one long-reach HDBaseT input, equalizes and
reclocks the signal and distributes it to four identical HDBaseT outputs. VM-4DT distributes
native HDBaseT signals with up to 4K video resolution, along with their re-extension over
HDBaseT.
VM-4DT is a standard extender that can connect to any market-available HDBaseT compliant
extending products.
VM-4DT provides exceptional quality and user-friendly operation.
Exceptional Quality
•Line Extender Distributor – Native 1:4 long-each HDBaseT distributor for deploying
mid-way between AV source and distributed-signal displays to gain extra long-reach
extension.
•High-quality professional extension, on either input or output lines, of maximum 4K @60Hz
(4:2:0) 24bpp video resolution signal to a maximum of 40m (130ft) long-reach over Kramer
HDBaseT compliant copper cable.
Reach depends on signal resolution, and quality of
copper cable used. Reach extension
performance may vary while using non
-Kramer twisted pair cables.

Kramer Electronics Ltd.
VM-4DT - Introduction
3
•HDMI Signal Transmission – HDMI 2.0 and HDCP 1.4 compliant signal, supporting deep
color, x.v.Color™, lip sync, HDMI uncompressed audio channels, Dolby TrueHD,
DTS−HD, CEC (OUT 1 only), 2K, 4K, and 3D.
•I−EDIDPro™ Kramer Intelligent EDID Processing™ – An intelligent EDID handling,
processing and pass−through algorithm that ensures Plug and Play operation for HDMI
source and display systems.
User-friendly Operation
•LED Indicators – Status indicators for HDBaseT input and output connected signals,
including far-end active device connection, and a power indicator, easily maintaining and
troubleshooting the extended system end-to-end.
•Easy Installation – Twisted-pair cables for HDBaseT signal wiring. Standard half-width 19”
(1U) enclosure for ceiling mounting, or side-by-side mounting of 2 units in a 1U rack space
with the optional RK-1 rack adapter.
•A default EDID for fast and efficient connection of the unit. The default EDID feature lets
you connect the VM-4DT without having to connect a display to the output.
•Supports EDID Designer and firmware upgrade via the USB port.
•Includes an EDID setup button to capture the EDID or select the default EDID.
Typical Applications
The VM-4DT is ideal for the following typical applications:
•Native AV signal re-extension and distribution in large rooms.
•Corporate, education, hospitality, and government market segments.
About HDBaseT™ Technology
HDBaseT™ is an advanced all-in-one connectivity technology (supported by the HDBaseT
Alliance). It is particularly suitable in the ProAV – and also the home – environment as a digital
networking alternative, where it enables you to replace numerous cables and connectors by a
single LAN cable used to transmit, for example, uncompressed full high-definition video, audio,
IR, as well as various control signals.
Using Twisted Pair Cable for HDBT
Kramer engineers have developed special twisted pair cables to best match our digital twisted
pair products that significantly outperform regular CAT 5 / CAT 6 cables.
We strongly recommend that you use shielded twisted pair cable. For details, go to our
website

Kramer Electronics Ltd.
VM-4DT - Defining the VM-4DT 1:4 HDBT Distributor
4
Defining the VM-4DT 1:4 HDBT
Distributor
This section defines the VM-4DT.
Figure 1: VM-4DT 1:4 HDBT Distributor Front Panel
#
Feature
Function
ON LED
Lights when the unit receives power.
PROGRAM Mini USB
Connector Use to send serial commands, see Protocol 3000 on page 15.
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
EDID SETUP Button
Press to capture the input EDID or select the default EDID, see
Acquiring an EDID on page 9.
ACTIVE INPUT LED Lights when an HDMI signal is embedded on the HDBaseT input
HDBT LINK LEDs
IN
Lights when a link is established with the transmitter.
OUT
Lights when a link is established with the receiver (from 1 to 4).
OUTPUTS CONNECTED
LEDs
Lights when an acceptor (sink) is detected on the HDBaseT receiver
connected to the output (from 1 to 4)
INPUT HDBT Connector
Connects to the HDBT source, for example TP-580T.
HDBT OUT Connectors
Connect to an HDBT acceptor (from 1 to 4), for example TP-580R.
SETUP 8-way DIP-switches
Used to set the IR and RS-232 command behavior, see Setting the
DIP-Switches for Routing on page 6.
SETUP 4-way DIP-switch
For future use.
5V DC Connector Connects to the 5V DC power supply.

Kramer Electronics Ltd.
VM-4DT - Connecting the VM-4DT
5
Connecting the VM-4DT
Always switch off the power to each device before connecting it to your
VM-4DT. After
connecting your
VM-4DT, connect its power and then switch on the power to each device.
To connect the VM-4DT as illustrated in the example in Figure 2:
1. Connect the HDBT input source (for example, TP-580T) to the HDBT IN connector .
2. Connect the four HDBT outputs to four HDBT receivers (for example, TP-580R
devices).
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 .
Figure 2: Connecting to the VM-4DT Rear Panel

Kramer Electronics Ltd.
VM-4DT - Operating the VM-4DT
6
Operating the VM-4DT
This section describes how to:
•Route the IR and RS-232 signals via the HDBT ports
(see Routing the IR and RS-232 Signals on page 6).
•Acquire the EDID (see Acquiring an EDID on page 9).
•Perform firmware upgrade via K-Upload (see Upgrading the Firmware on page 10).
Routing the IR and RS-232 Signals
VM-4DT transports IR and RS-232 signals between the HDBT input and the four HDBT
outputs. Each signal can pass bidirectional commands via the VM-4DT HDBT ports (one input
and four outputs).
The IR/RS-232 signal routing is set via the SETUP DIP-switches .
Setting the DIP-Switches for Routing
Set the DIP-switches as defined by the following table:
Output # IR Routing is
enabled when:
RS-232 Routing is
enabled when:
Figure 3: VM-4DT DIP-Switches
OUT 1
DIP 1 – OFF (up)
DIP 5 – OFF (up)
OUT 2
DIP 2 – OFF (up)
DIP 6 – OFF (up)
OUT 3
DIP 3 – OFF (up)
DIP 7 – OFF (up)
OUT 4
DIP 4 – OFF (up)
DIP 8 – OFF (up)
By default, all DIP-
switches are set to OFF
(up)
For example, in the DIP-switch setup shown in Figure 4, DIPs 1, and 6 are set to OFF (up).
This means that IR signals can traverse between IN and OUT 1 ports and RS-232 commands
can traverse between IN and OUT 2 ports. DIP-switches 2, 3, 4, 5, 7, and 8 are set to ON
(down) and are therefore disabled.
Figure 4: VM-4DT DIP-Switches Setup

Kramer Electronics Ltd.
VM-4DT - Operating the VM-4DT
7
Signal Routing Example
The example in Figure 5 shows the VM-4DT connected to two TP-580R devices. Two
additional TP-580R devices can also be connected. The table below summarizes the types of
connections:
Output #
HDMI OUT:
INPUT
IR
RS-232
VM-4DT
TP-580T (Blu-ray player)
Emitter
RC-43SL
TP-580R (1)
Projector
Projector
TP-580R (2)
Display
Sensor
Display
RS
-232 and IR signals are transparently routed between the VM-4DT source and two
acceptors.
Since RS-232 is designed for point-to-point communication, make sure that only
one RS
-232 signal is sent to a destination. However, although only one device may send
RS
-232 signals down a line, sending RS-232 signals to multiple devices is permissible.
You can send RS
-232 signals to an AV device via the transmitter or receivers that are
connected to the
VM-4DT. If you have set the DIP-switches to traverse to all outputs, any
command sent to a destination on one of the outputs will also pass to
the other output
destination
s, so you must verify that it will not have an unwanted effect on the other
destination
s.
In general
, we recommend that you set the DIP-switches to traverse to all outputs only when
all
destination devices are identical (same vendor and same product model) and avoid the
sending of concurrent responses
.
Routing the IR signal
In the example in Figure 5, an IR emitter cable is connected from TP-580T to the Blu-ray
player and an IR sensor cable is connected to the TP-580R (2) receiver for receiving IR
remote signals. This setup lets you remotely control the Blu-ray player via the TP-580R (2)
receiver device, using the Blu-ray player IR remote control transmitter.
To route the IR signal you have to use
the Kramer external IR Receiver cable on one end
and the
Kramer IR emitter cable on the other end. Note that IR Emitter Extension Cables are
also
available, if required. For further details,
Routing the RS-232 Signal
An RS-232 controller can be used to control the AV devices via the TP-580T RS-232 port by
sending RS-232 commands over HDBaseT lines to the remote connected AV devices.
In the example in Figure 5, the Kramer RC-43SL control keypad is used to control AV devices
that are connected to both TP-580R (1) and TP-580R (2). RC-43SL is connected to the
TP-580T RS-232 port. The RS-232 ports on TP-580R (1) and TP-580R (2) are connected to a
projector and display, respectively. This type of setup enables you to control the projector and
display via the RC-43SL.
When RC-43SL sends a command to the projector on TP-580R (1), it bears no effect on the
display that is connected to TP-580R (2). If TP-580R (1) and TP-580R (2) were connected
each to identical projectors, both would respond to the sent RS-232 command.

Kramer Electronics Ltd.
VM-4DT - Operating the VM-4DT
8
Figure 5: IR/RS-232 Routing Example

Kramer Electronics Ltd.
VM-4DT - Operating the VM-4DT
9
Acquiring an EDID
You can acquire the EDID from a connected output or set the VM-4DT to the default EDID.
To acquire an EDID, press the EDID SETUP button as follows:
1. Press EDID SETUP once.
The OUTPUTS CONNECTED LEDs flash to indicate the current EDID used: 1, 2, 3, 4,
or all if the default EDID is currently used.
2. Press EDID SETUP again to enter the EDID read mode and then press repeatedly to
cycle through the EDID source options until the desired EDID source is reached:
OUT 1 -> OUT 2 -> OUT 3 -> OUT 4 -> all LEDs flash (for a default EDID).
3. Wait a few seconds for the VM-4DT to read the EDID.
When complete, all LEDs return to display the present output connection status.
N
ote that if an unconnected output is chosen or the EDID cannot be read, the VM-4DT loads
the default EDID
.
VM
-4DT supports Kramer EDID Designer (via the mini USB port), available at our website:
Kramer EDID Designer
.
I
n order to use the mini USB port , you need to download and install the Kramer USB
driver from our
web site
Forcing the RGB Mode
VM-4DT can acquire EDID in normal mode (default) or in RGB mode (EDID supports only
RGB color space).
To enter RGB-only mode:
1. Press and hold EDID SETUP .
The output LEDs flash 4 times and then turn off.
2. If required, read the EDID (see Acquiring an EDID, on page 9).
To return to the normal mode:
1. Press and hold EDID SETUP .
The output LEDs light once and then turn off.
2. If required, read the EDID (see Acquiring an EDID, on page 9).
Upon power on, the output LEDs flash according to their EDID mode:
four times for RGB
mode
and once for normal mode.

Kramer Electronics Ltd.
VM-4DT - Operating the VM-4DT
10
Upgrading the Firmware
Use the Kramer K-UPLOAD software to upgrade the firmware via the VM-4DT PROG. Mini
USB port .
The latest version of K-UPLOAD and installation instructions can be downloaded from our
website
Note that in order to use the mini USB port, you need to
install the Kramer USB driver,
available

Kramer Electronics Ltd.
VM-4DT - Default EDID
11
Default EDID
This section lists the
default HD EDID.
Monitor
Model name............... VM-4DT
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

Kramer Electronics Ltd.
VM-4DT - Default EDID
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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
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........... 01/12/2016
Software revision........ 2.90.0.1020
Data source.............. Real-time 0x0071
Operating system......... 6.1.7601.2.Service Pack 1

Kramer Electronics Ltd.
VM-4DT - Technical Specifications
13
Technical Specifications
Input:
1 HDBT on an RJ-45 female connector
Outputs:
4 HDBT on RJ-45 female connectors
Extension Line / Range:
HDBaseT 1.0 compliant
Up to 40m (130ft) at 4K@60Hz (4:2:0)
Up to 70m (230ft) at full HD (1080p@60Hz 36bpp)
Note: The specs only apply when using Kramer HDBaseT cables. This
reach applies to each IN and OUT port separately; the total end-to-end
reach is the sum of all ports’ reach.
Video:
Up to 4K@60Hz (4:2:0) resolution; Up to 10.2Gbps (3.4Gbps per
graphic channel) data rate; Complies with HDMI 2.0 and HDCP 1.4
Controls:
Front panel:
EDID SETUP button
Indicator LEDs: OUTPUTS CONNECTED 1-4, HDBT LINK 1-4,
ACTIVE INPUT, ON
Mini-USB for RS-232 Protocol 3000 communication
Rear Panel:
SETUP DIP-switches
Power Source:
5.2V DC/4A power supply unit
Power Consumption:
5V DC, 3.5A
Enclosure:
Desktop size, Aluminum type
Cooling:
Fan ventilation
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
Dimensions:
21.5cm x 16.3cm x 4.4cm (8.4” x 6.4” x 1.8") W, D, H
Shipping Dimensions:
35.1cm x 21.2cm x 7.2cm (13.8” x 8.3” x 2.8") W, D, H
Weight:
0.53kg (1.17lb)
Shipping Weight:
1.29kg (2.84lb)
Included Accessories:
Power supply
Specifications are subject to change without notice
For optimum range and performance use the recommended Kramer cables available

Kramer Electronics Ltd.
VM-4DT - Technical Specifications
14
Default Communication Parameters
Serial USB
Baud Rate:
115,200
Data Bits:
8
Stop Bits:
1
Parity:
None
Factory Reset
Protocol 3000:
FACTORY command to reset to factory default configuration
Protocol 3000
Command Format:
ASCII protocol 3000
Example (get the input signal status):
#SIGNAL? 1,1<cr>

Kramer Electronics Ltd.
VM-4DT - Protocol 3000
15
Protocol 3000
The VM-4DT 1:4 HDBT Distributor can be operated using the Kramer Protocol 3000 serial
commands. The command framing varies according to how you interface with the VM-4DT.
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 VM-4DT. 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.

Kramer Electronics Ltd.
VM-4DT - Protocol 3000
16
For more information about Protocol 3000 commands, see:
•Understanding Protocol 3000 on page 16
•Kramer Protocol 3000 Syntax on page 17
•Protocol 3000 Commands on page 18
Understanding Protocol 3000
Protocol 3000 commands are structured according to the following:
•Command – A sequence of ASCII letters (A-Z, a-z and -). A command and its parameters
must be separated by at least one space.
•Parameters – A sequence of alphanumeric 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.
A string can contain more than one command.
Commands are separated by a pipe (|)
character.
•Message starting character:
•#– For host command/query
•~– For device response
•Device address – K-NET Device ID followed by @(optional, K-NET only)
•Query sign – ?follows some commands to define a query request
•Message closing character:
•CR – Carriage return for host messages (ASCII 13)
•CR LF – Carriage return for device messages (ASCII 13) and line-feed (ASCII 10)
•Command chain separator character – 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 only at the
beginning and end of the string.
Spaces between par
ameters or command terms are ignored. Commands in the string do not
execute until the closing character is entered. A separate response is sent for every
command in the chain.

Kramer Electronics Ltd.
VM-4DT - Protocol 3000
17
Kramer Protocol 3000 Syntax
The Kramer Protocol 3000 syntax uses the following delimiters:
•CR = Carriage return (ASCII 13 = 0x0D)
•LF = Line feed (ASCII 10 = 0x0A)
•SP = Space (ASCII 32 = 0x20)
Some commands have short name syntax in addition to long name syntax to enable faster
typing. The response is always in long syntax.
The Protocol 3000 syntax is in the following format:
•Host Message Format:
Start
Address
(optional)
Body
Delimiter
#
Device_id@
Message
CR
•Simple Command – Command string with only one command without addressing:
Start
Body
Delimiter
#
Command SP
Parameter_1,Parameter_2,…
CR
•Command String – Formal syntax with command concatenation and addressing:
Start
Address
Body
Delimiter
#
Device_id@
Command_1
Parameter1_1,Parameter1_2,…|
Command_2
Parameter2_1,Parameter2_2,…|
Command_3
Parameter3_1,Parameter3_2,…|…
CR
•Device Message Format:
Start
Address
(optional)
Body
Delimiter
~
Device_id@
Message
CR LF
•Device Long Response – Echoing command:
Start
Address
(optional)
Body
Delimiter
~
Device_id@
Command SP
[
Param1 ,Param2 …
] result
CR LF

Kramer Electronics Ltd.
VM-4DT - Protocol 3000
18
Protocol 3000 Commands
This section includes the following commands:
•System Commands on page 18
•EDID Handling Commands on page 23
System Commands
Command
Description
#
Protocol handshaking (system mandatory)
BUILD-DATE
Get device build date (system mandatory)
FACTORY
Reset to factory default configuration
HELP
Get command list (system mandatory)
MODEL
Get device model (system mandatory)
PROT-VER
Get device protocol version (system mandatory)
RESET
Reset device (system mandatory)
SN
Get device serial number (system mandatory)
DISPLAY
Get output HPD status
NAME
Set/get machine (DNS) name (system – Ethernet)
SIGNAL
Get input signal lock status (system)
HDCP-STAT
Get HDCP signal status
#
Functions
Permission
Transparency
Set:
#
End User
Public
Get:
-
-
-
Description
Syntax
Set:
Protocol handshaking
#CR
Get:
-
-
Response
~nn@SPOKCR LF
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
K-Config Example
“#”,0x0D
BUILD-DATE
Functions
Permission
Transparency
Set:
-
-
-
Get:
BUILD-DATE?
End User
Public
Description
Syntax
Set:
-
-
Get: Get device build date
#BUILD-DATE?CR
Response
~nn@BUILD-DATESPdateSPtimeCR LF
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
K-Config Example
“#BUILD-DATE?”,0x0D