Kramer VS-42H User manual

Kramer Electronics, Ltd.
USER MANUAL
Model:
VS-42H
4x2 HDMI Matrix Switcher

Contents
i
Contents
1Introduction 1
2Getting Started 1
2.1 Quick Start 2
3Overview 3
3.1 Defining EDID 3
3.2 About HDMI 4
3.3 Recommendations for Best Performance 5
3.4 Terminology Used in this User Manual 5
4Your VS-42H 4x2 HDMI Matrix Switcher 5
5Installing the VS-42H in a Rack 8
6Connecting a VS-42H 4x2 HDMI Matrix Switcher 9
7Operating the VS-42H 11
7.1 Acquiring the EDID 11
7.2 Storing and Recalling a Setting 12
7.3 Connecting a PC 13
7.4 Controlling via ETHERNET 13
7.4.1 Connecting the ETHERNET Port directly to a PC (Crossover Cable) 13
7.4.2 Connecting the ETHERNET Port via a Network Hub (Straight-Through Cable) 15
7.4.3 Control Configuration via the Ethernet Port 15
8Technical Specifications 15
9EDID Factory Default Data 16
10 Kramer Protocol 2000 18
Figures
Figure 1: VS-42H 4x2 HDMI Matrix Switcher 6
Figure 2: Connecting a VS-42H 4x2 HDMI Matrix Switcher 10
Figure 3: Local Area Connection Properties Window 14
Figure 4: Internet Protocol (TCP/IP) Properties Window 14
Tables
Table 1: Terminology Used in this User Manual 5
Table 2: VS-42H 4x2 HDMI Matrix Switcher Front Panel Features 7
Table 3: VS-42H 4x2 HDMI Matrix Switcher Rear Panel Features 7
Table 4: Technical Specifications of the VS-42H 15
Table 5: Protocol Definitions 18
Table 6: Instruction Codes for Protocol 2000 19

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 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 VS-42H 4x2 HDMI Matrix Switcher.
This product is ideal for conference room presentations and advertising
applications, as well as for rental and staging.
that are clearly
defined by function.
Note, that the Kramer VM-42H is identical to the VM-42HDMI;just
the name has changed replacing the suffix “HDMI” by “H” (according
to the HDMI Guideline).
Each package includes the following items:
•VS-42H 4x2 HDMI Matrix Switcher
•Power cord, rack “ears” and null-modem adapter
•Windows®-based Kramer control software2
•Kramer RC-IR3Infrared Remote Control Transmitter (including the
required batteries and a separate user manual
and Windows®-based
Ethernet Configuration Manager and Virtual Serial Port Manager
3)
•This user manual3
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 cables4
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 Downloadable from our Web site at http://www.kramerelectronics.com
3 Download up-to-date Kramer user manuals from our Web site at http://www.kramerelectronics.com
4 The complete list of Kramer cables is on our Web site at http://www.kramerelectronics.com

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

Overview
3
3 Overview
The VS-42H is a high quality 4x2 matrix switcher for HDMI signals.
In particular, the VS-42H features:
•Support of up to 1.65Gbps bandwidth per graphic channel1
•Two sets of input selector buttons
2
•I-EDIDPro™ Kramer Intelligent EDID Processing™, an intelligent
EDID handling and processing algorithm that ensures Plug and Play
operation for HDMI systems
(eight in total) to switch to the outputs
•HDCP support (High Definition Digital Content Protection)
•Kramer reKlocking™ & Equalization Technology that rebuilds the
digital signal to travel longer distances
•A PANEL LOCK button to prevent unwanted tampering with the
buttons on the front panel
•Installation in one vertical space of a standard 19” professional rack
enclosure
Control the VS-42H using the front panel buttons, or remotely via:
•RS-232 serial commands transmitted by a touch screen system, PC, or
other serial controller
•The Kramer infrared remote control transmitter
•The ETHERNET
3.1 Defining EDID
The Extended Display Identification Data (EDID3
) is a data-structure,
provided by a display, to describe its capabilities to an HDMI source. The
EDID enables the VS-42H 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.
1 Suitable for resolutions up to UXGA at 60Hz, and for all HD resolutions
2 From INPUT 1 to INPUT 4, TO OUTPUT 1 and from INPUT 1 to OUTPUT 4, TO OUTPUT 2
3 Defined by a standard published by the Video Electronics Standards Association (VESA)

Overview
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3.2 About HDMI
High-Definition Multimedia Interface (HDMI) is an uncompressed
all-digital1
In particular, HDMI
audio/video interface, widely supported in the entertainment and
home cinema industry. It delivers the highest high-definition image and
sound quality. Note that Kramer Electronics Limited is an HDMI Adopter
and an HDCP Licensee.
2
•Provides a simple
:
3interface between any audio/video source, such as a
set-top box, DVD player, or A/V receiver and video monitor, such as a
digital flat LCD / plasma television (DTV), over a single lengthy4
•Supports standard, enhanced, high-definition video, and multi-channel
digital audio
cable
5
•Transmits all ATSC HDTV standards and supports 8-channel digital
audio, with bandwidth to spare to accommodate future enhancements
and requirements
on a single cable
•Benefits consumers by providing superior, uncompressed digital video
quality via a single cable6
•Is backward-compatible with DVI (Digital Visual Interface)
, and user-friendly connector
•Supports CEC, two-way communication between the video source
(such as a DVD player) and the digital television, enabling new
functionality such as automatic configuration and one-button play
HDMI has the capacity to support existing high-definition video formats
(720p, 1080i, and 1080p, 2K and 4K), standard definition formats such as
NTSC or PAL, as well as 480p and 576.
1 Ensuring an all-digital rendering of video without the losses associated with analog interfaces and their unnecessary digital-
to-analog conversions
2 HDMI, the HDMI logo and High-Definition Multimedia Interface are trademarks or registered trademarks of HDMI
licensing LLC
3 With video and multi-channel audio combined into a single cable, the cost, complexity, and confusion of multiple cables
currently used in A/V systems is reduced
4 HDMI technology has been designed to use standard copper cable construction at up to 15m
5 HDMI supports multiple audio formats, from standard stereo to multi-channel surround-sound. HDMI has the capacity to
support Dolby 5.1 audio and high-resolution audio formats
6 HDMI provides the quality and functionality of a digital interface while also supporting uncompressed video formats in a
simple, cost-effective manner

Your VS-42H 4x2 HDMI Matrix Switcher
5
3.3 Recommendations for Best Performance
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 VS-42H away from moisture, excessive sunlight and dust
3.4 Terminology Used in this User Manual
Table 1defines some terms that are used in this user manual.
Table 1: Terminology Used in this User Manual
Term Definition
802.3 The standard specification for ETHERNET that is maintained by the Institute of Electrical
and Electronics Engineers (IEEE).
Dynamic Host
Configuration
Protocol (DHCP)
Allows the network administrator to distribute IP addresses from a central point and
automatically send a new IP address when an Ethernet point is plugged into a different
network location.
Gateway A network position serving as an entry to another network. On the Internet, a node or
stopping point can be either a gateway node or a host (end-point) node.
IP Address A 32-binary digit number that identifies each sender or receiver (within a network via a
particular server or workstation) of data (HTML pages or e-mails) that is sent in packets
across the Internet. Every device connected to an IP network must have a unique IP
address. This address is used to reference the specific unit.
Local Area Network
(LAN)
Computers sharing a common communications line or wireless link, which often share a
server within a defined geographic area.
Media Access
Control (MAC)
Address
A computer's unique hardware number (or address) in a LAN or other network. On an
Ethernet LAN, the (MAC) address is identical to the Ethernet address.
Transmission
Control
Protocol/Internet
Protocol (TCP/IP)
The basic communication language or protocol of the Internet that breaks the message
into appropriately sized packets for the network, and can be used as a communications
protocol in an intranet or an extranet.
4 Your VS-42H 4x2 HDMI Matrix Switcher
Figure 1illustrates the front and rear panels of the VS-42H. Table 2and
Table 3define the front and rear panels of the VS-42H, respectively.

Your VS-42H 4x2 HDMI Matrix Switcher
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Figure 1: VS-42H 4x2 HDMI Matrix Switcher

Your VS-42H 4x2 HDMI Matrix Switcher
7
Table 2: VS-42H 4x2 HDMI Matrix Switcher Front Panel Features
#
Feature
Function
1 IR Receiver The red LED lights when receiving signals from the
Infra-red remote control transmitter
2 POWER Switch Illuminated switch for turning the unit ON or OFF
3 INPUT SELECTOR
Buttons
TO OUTPUT 2 Press an INPUT SELECTOR button to select an input
(from 1 to 4) to switch to output 2
4 TO OUTPUT 1 Press an INPUT SELECTOR button to select an input
(from 1 to 4) to switch to output 1
5 OFF Buttons TO OUTPUT 1 Press to toggle disconnecting output 1
6 TO OUTPUT 2 Press to toggle disconnecting output 2
7 EDID Button
1
Press to acquire the EDID
8 STO Button Press to store an input setting
9 RCL Button Press to recall an input setting
10 LOCK Button Press to toggle disengaging the front panel buttons and
to acquire the EDID (see section 7.1)
Table 3: VS-42H 4x2 HDMI Matrix Switcher Rear Panel Features
#
Feature
Function
11 IN HDMI Connectors Connect to the HDMI sources (from 1 to 4)
12 OUT 1 HDMI Connector Connect to the HDMI acceptor 1
13 OUT 2 HDMI Connector Connect to the HDMI acceptor 2
14 RS-232 9-pin D-sub Port Connects to the PC or the Remote Controller2
15 ETHERNET Connector Connects to the PC or other Ethernet Controller
16 RESET Button Press the ETHERNET factory reset button to reset to the
factory default definitions3
IP number −192.168.1.39
:
Mask – 255.255.255.0
Gateway – 192.168.1.1
17 Power Connector with Fuse AC connector enabling power supply to the unit
1 Illuminates when configuring the EDID
2 Via a null-modem connection
3 First disconnect the power cord and then connect it again while pressing the RESET button. The unit will power up and load
its memory with the factory default definitions

Installing the VS-42H in a Rack
KRAMER: SIMPLE CREATIVE TECHNOLOGY
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5 Installing the VS-42H in a Rack
This section provides instructions for rack mounting the unit.

Connecting a VS-42H 4x2 HDMI Matrix Switcher
9
6 Connecting a VS-42H 4x2 HDMI Matrix Switcher
To connect the VS-42H 4x2 HDMI Matrix Switcher, as illustrated in the
example in Figure 2, do the following1
1. Connect
:
2
2. Connect
up to four HDMI sources (for example, DVD players) to the four
IN HDMI connectors.
3
3. If required, connect a PC and/or controller to the RS-232 port (see
section
the OUT 1 and OUT 2 HDMI connectors to up to two HDMI
acceptors (for example, LCD displays with built-in speakers).
7.3) and/or the ETHERNET port (see section 7.4).
4. Connect the power connector to the mains electricity (not shown in
Figure 2).
5. If required, acquire the EDID (see section 7.1)
Press an INPUT SELECTOR button (two sets of buttons4
1 Switch OFF the power on each device before connecting it to your VS-42H. After connecting your VS-42H, switch on its
power and then switch on the power on each device
from 1 to 4) to
choose which HDMI input to route to the outputs.
2 You do not have to connect all the HDMI sources
3 You do not have to connect both outputs
4 TO OUTPUT 1 and TO OUTPUT 2

Connecting a VS-42H 4x2 HDMI Matrix Switcher
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Figure 2: Connecting a VS-42H 4x2 HDMI Matrix Switcher

Operating the VS-42H
11
7 Operating the VS-42H
This section describes how to:
•Acquire the EDID (see section 7.1)
•Store and recall a setting (see section 7.2)
•Control the machine via RS-232 (see section 7.3)
•Control the machine via the ETHERNET port (see section 7.4)
7.1 Acquiring the EDID
You can acquire the EDID from OUT 1 and/or OUT 2 and copy it to any of
the four inputs, or reset to the default EDID. The EDID is acquired at once
for all the inputs, according to the status of the selector buttons.
To acquire or change the EDID of a new output display:
1. Connect the required acceptor to the output from which you want to acquire
the EDID.
2. Connect the power supply.
3. Press the EDID button and hold it for 3 seconds.
Four input buttons blink1
4. For each input, select the output from which it will acquire the EDID.
For example, to copy the EDID of output 2 to input 3, press the INPUT
SELECTOR button 3 on the TO OUTPUT 2 line.
.
5. Press the LOCK button.
The INPUT buttons blink in sequence until the EDID is acquired.
To acquire the EDID of both outputs2
1. Connect the required acceptors to the outputs.
:
2. Connect the power supply.
3. Press the EDID button and hold it for 3 seconds.
The selected input buttons blink3
4. For each input, select both outputs.
For example, to copy the EDID of output 1 and output 2 to input 3, press the
INPUT SELECTOR button 3 on the TO OUTPUT 1 line and on the TO
OUTPUT 2 line.
.
1 The four buttons that switch to the output from which you are acquiring the EDID
2 The EDID acquired is a weighted average of the connected outputs. For example, if displays with different resolutions are
connected to the outputs, the acquired EDID supports both resolutions, as well as other parameters included in the EDID
3 The four buttons that switch to the output from which you are acquiring the EDID

Operating the VS-42H
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5. Press the LOCK button.
The INPUT buttons blink in sequence until the EDID is acquired.
To reset to the default EDID, disconnect the outputs and repeat the above
steps.
7.2 Storing and Recalling a Setting
You can use the STO and RCL buttons to store the current setup and then
recall it.
To store a setting:
1. Set the machine to the desired setting.
For example, press INPUT SELECTOR button 3 on the TO OUTPUT 1
line and INPUT SELECTOR button 1 on the TO OUTPUT 2 line.
2. Press the STO button.
The STO button is illuminated and the selected inputs1
3. Press the STO button again
blink.
2
To recall a setup:
to store the current setup.
The STO button no longer illuminates and the current setting is stored in the
machine’s non-volatile memory.
1. Press the RCL button.
The RCL button illuminates as well as the current setting input buttons, and
the input buttons of the stored setup blink.
2. Press the RCL button once again2to recall the stored setting.
1 INPUT SELECTOR button 3 on the TO OUTPUT 1 line and INPUT SELECTOR button 1 on the TO OUTPUT 2 line
2 You have to press the STO button within 10 seconds, before the store operation times out

Operating the VS-42H
13
7.3 Connecting a PC
7.4 Controlling via ETHERNET
You can connect the VS-42H via the Ethernet, using a crossover cable (see
section 7.4.1) for direct connection to the PC or a straight through cable (see
section 7.4.2) for connection via a network hub or network router1
7.4.1 Connecting the ETHERNET Port directly to a PC (Crossover
Cable)
.
You can connect the Ethernet port of the VS-42H to the Ethernet port on
your PC, via a crossover cable with RJ-45 connectors.
This type of connection is recommended for identification of the factory default
IP Address of the VS-42H during the initial configuration
1 After connecting the Ethernet port, you have to install and configure your Ethernet Port. For detailed instructions, see the
“Ethernet Configuration (FC-11) guide.pdf” file in the technical support section on our Web site:
http://www.kramerelectronics.com

Operating the VS-42H
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After connecting the Ethernet port, configure your PC as follows:
1. Right-click the My Network Places icon on your desktop.
2. Select Properties.
3. Right-click Local Area Connection Properties.
4. Select Properties.
The Local Area Connection Properties window appears.
5. Select the Internet Protocol (TCP/IP) and click the Properties Button (see
Figure 3).
Figure 3: Local Area Connection Properties Window
6. Select Use the following IP Address, and fill in the details as shown in
Figure 4.
7. Click OK.
Figure 4: Internet Protocol (TCP/IP) Properties Window

Technical Specifications
15
7.4.2 Connecting the ETHERNET Port via a Network Hub (Straight-Through
Cable)
You can connect the Ethernet port of the VS-42H to the Ethernet port on a
network hub or network router, via a straight-through cable with RJ-45.
7.4.3 Control Configuration via the Ethernet Port
To control several units via the Ethernet, connect the Mster unit via the
Ethernet port to the LAN port of your PC. Use your PC initially to configure
the settings (see section 7.4).
8 Technical Specifications
Table 4includes the technical specifications:
Table 4: Technical Specifications1
INPUTS:
of the VS-42H
4 HDMI connectors
OUTPUTS: 2 HDMI connectors
BANDWIDTH: Supports up to 1.65Gbps bandwidth per graphic channel
COMPLIANCE WITH
HDMI STANDARD:
Supports HDMI and HDCP
AUDIO FORMAT: Supports digital Dolby up to 5.1 channels2
RESOLUTION: Up to UXGA; 1080p
POWER SOURCE: 100−264V AC; 50/60Hz, 10VA
CONTROLS: Front panel buttons, infrared remote control transmitter, RS-232, Ethernet
DIMENSIONS: 19" x 7" x 1U W, D, H rack mountable
WEIGHT: 2.5kg (5.5lbs) approx.
ACCESSORIES: Power cord, rack “ears”, IR remote control, Null-modem adapter
OPTIONS: Kramer HDMI cables
3
1 Specifications are subject to change without notice
2 Set the EDID to support the audio format
3 For best results, use Kramer cables such as the C-HM/HM series, the C-HM/DM series and/or our HDMI over fiber optics
C-FOHM/FOHM series

EDID Factory Default Data
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9 EDID Factory Default Data
Monitor
Model name VS-42HDMI
Manufacturer KRM
Plug and Play ID KRM3535
Serial number N/A
Manufacture date 2006, ISO week 13
-------------------------
EDID revision 1.3
Input signal type Digital (DVI(
Color bit depth Undefined
Display type RGB color
Screen size 700 x 390 mm (31.5 in(
Power management Not supported
Extension blocs 1 (CEA-EXT(
-------------------------
DDC/CI Not supported
Color characteristics
Default color space Non-sRGB
Display gamma 2.20
Red chromaticity Rx 0.640 - Ry 0.341
Green chromaticity Gx 0.286 - Gy 0.610
Blue chromaticity Bx 0.146 - By 0.069
White point (default) Wx 0.284 - Wy 0.293
Additional descriptors None
Timing characteristics
Horizontal scan range 30-91kHz
Vertical scan range 55-85Hz
Video bandwidth 160MHz
CVT standard Not supported
GTF standard Supported
Additional descriptors None
Preferred timing Yes
Native/preferred timing 1280x720p at 60Hz (16:9(
Modeline "1280x720" 74.250 1280 1390 1430 1650 720 725 730 750 +hsync +vsync
Detailed timing #1 720x480p at 60Hz (16:9(
Modeline "720x480" 27.000 720 736 798 858 480 489 495 525 -hsync -vsync
Standard timings supported
720 x 400p at 70Hz - IBM VGA
640 x 480p at 60Hz - IBM VGA
640 x 480p at 67Hz - Apple Mac II
640 x 480p at 72Hz - VESA
640 x 480p at 75Hz - VESA
800 x 600p at 56Hz - VESA
800 x 600p at 60Hz - VESA
800 x 600p at 72Hz - VESA
800 x 600p at 75Hz - VESA
832 x 624p at 75Hz - Apple Mac II
1024 x 768p at 60Hz - VESA
1024 x 768p at 70Hz - VESA
1024 x 768p at 75Hz - VESA
1280 x 1024p at 75Hz - VESA
1600 x 1200p at 60Hz - VESA STD
1280 x 960p at 85Hz - VESA STD
1360 x 765p at 85Hz - VESA STD
1024 x 768p at 85Hz - VESA STD
800 x 600p at 85Hz - VESA STD
640 x 480p at 85Hz - VESA STD

EDID Factory Default Data
17
EIA/CEA-861 Information
Revision number 3
IT underscan Not supported
Basic audio Supported
YCbCr 4:4:4 Not supported
YCbCr 4:2:2 Not supported
Native formats 0
Detailed timing #1 1920x1080i at 60Hz (16:9(
Modeline "1920x1080" 74.250 1920 2008 2052 2200 1080 1084 1094 1124 interlace +hsync +vsync
Detailed timing #2 1920x1080i at 50Hz (16:9(
Modeline "1920x1080" 74.250 1920 2448 2492 2640 1080 1084 1094 1124 interlace +hsync +vsync
Detailed timing #3. 720x576p at 50Hz (4:3(
Modeline "720x576" 27.000 720 732 796 864 576 581 586 625 -hsync -vsync
Detailed timing #4 720x480p at 60Hz (4:3(
Modeline "720x480" 27.000 720 736 798 858 480 489 495 525 -hsync -vsync
Detailed timing #5 640x480p at 60Hz (4:3(
Modeline "640x480" 25.180 640 648 744 800 480 482 484 525 -hsync -vsync
CE video identifiers (VICs) - timing/formats supported
640 x 480p at 60Hz - Default (4:3, 1:1(
720 x 480p at 60Hz - EDTV (4:3, 8:9(
1280 x 720p at 60Hz - HDTV (16:9, 1:1(
1920 x 1080i at 60Hz - HDTV (16:9, 1:1(
720 x 480i at 60Hz - Doublescan (4:3, 8:9(
1440 x 480p at 60Hz - DVD (4:3, 4:9(
1920 x 1080p at 60Hz - HDTV (16:9, 1:1(
720 x 576p at 50Hz - EDTV (4:3, 16:15(
1280 x 720p at 50Hz - HDTV (16:9, 1:1(
1920 x 1080i at 50Hz - HDTV (16:9, 1:1(
2880 x 576i at 50Hz - Console (4:3, 2:15-20:15(
1920 x 1080p at 50Hz - HDTV (16:9, 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 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
CE vendor specific data (VSDB)
IEEE registration number 0x000C03
CEC physical address 1.0.0.0
Supports AI (ACP, ISRC) No
Supports 48bpp No
Supports 36bpp No
Supports 30bpp No
Supports YCbCr 4:4:4 No
Supports dual-link DVI No
Maximum TMDS clock 165MHz
Report information
Date generated 20/02/2011
Software revision 2.52.0.857
Data source Real-time 0x0031
Operating system 5.1.2600.2.Service Pack 3

Kramer Protocol 2000
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10 Kramer Protocol 2000
The VS-42H is compatible with Kramer’s Protocol 20001
Table 5: Protocol Definitions
(version 0.50)
(below). This RS-232/RS-485 communication protocol uses four bytes of
information as defined below. For RS-232, a null-modem connection
between the machine and controller is used. The default data rate is 9600
baud, with no parity, 8 data bits and 1 stop bit.
MSB LSB
DESTNATION INSTRUCTION
0
D
N5
N4
N3
N2
N1
N0
7
6
5
4
3
2
1
0
1st byte
INPUT
1
I6
I5
I4
I3
I2
I1
I0
7
6
5
4
3
2
1
0
2nd byte
OUTPUT
1
O6
O5
O4
O3
O2
O1
O0
7
6
5
4
3
2
1
0
3rd byte
MACHINE NUMBER
1
OVR
X
M4
M3
M2
M1
M0
7
6
5
4
3
2
1
0
4th byte
1st BYTE: Bit 7 – Defined as 0.
D – “DESTINATION”: 0 - for sending information to the switchers (from the PC);
1 - for sending to the PC (from the switcher).
N5…N0 – “INSTRUCTION”
The function that is to be performed by the switcher(s) is defined by the INSTRUCTION (6 bits). Similarly, if a function is
performed via the machine’s keyboard, then these bits are set with the INSTRUCTION NO., which was performed. The
instruction codes are defined according to the table below (INSTRUCTION NO. is the value to be set for N5…N0).
2nd BYTE: Bit 7 – Defined as 1.
I6…I0 – “INPUT”.
When switching (ie. instruction codes 1 and 2), the INPUT (7 bits) is set as the input number which is to be switched.
Similarly, if switching is done via the machine’s front-panel, then these bits are set with the INPUT NUMBER which was
switched. For other operations, these bits are defined according to the table.
3rd BYTE: Bit 7 – Defined as 1.
O6…O0 – “OUTPUT”.
When switching (ie. instruction codes 1 and 2), the OUTPUT (7 bits) is set as the output number which is to be switched.
Similarly, if switching is done via the machine’s front-panel, then these bits are set with the OUTPUT NUMBER which was
switched. For other operations, these bits are defined according to the table.
4th BYTE: Bit 7 – Defined as 1.
Bit 5 – Don’t care.
OVR – Machine number override.
M4…M0 – MACHINE NUMBER.
Used to address machines in a system via their machine numbers. When several machines are controlled from a single serial
port, they are usually configured together with each machine having an individual machine number. If the OVR bit is set, then
all machine numbers will accept (implement) the command, and the addressed machine will reply.
For a single machine controlled via the serial port, always set M4…M0 = 1, and make sure that the machine itself is
configured as MACHINE NUMBER = 1.
1 You can download our user-friendly “Software for Calculating Hex Codes for Protocol 2000” from our Web site:
http://www.kramerelectronics.com