Kramer VS-41HD User manual

Kramer Electronics, Ltd.
USER MANUAL


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Model:
VS-41HD
4x1 HD/SD-SDI Switcher / DA

Contents
i
Contents
1Introduction 1
2Getting Started 1
2.1 Quick Start 1
3Overview 3
4Your VS-41HD 4x1 HD/SD-SDI Switcher / DA 3
5Installing on a Rack 6
6Connecting Your VS-41HD 4x1 HD/SD-SDI Switcher / DA 7
6.1 Dipswitch Settings 8
6.1.1 Setting the Machine ID Dipswitches 9
6.2 Controlling via RS-232 (for example, using a PC) 9
6.3 Controlling via the RS-485 Port 10
6.4 Switching two Genlocked Video Signals 11
6.5 Controlling via ETHERNET 11
6.5.1 Connecting the ETHERNET Port directly to a PC (Crossover Cable) 11
6.5.2 Connecting the ETHERNET Port via a Network Hub (Straight-Through Cable) 13
6.5.3 Configuring the Ethernet Port 13
6.6 Controlling via the C.C REMOTE Connector 13
7Operating the VS-41HD 14
7.1 Locking the Front Panel 14
8Technical Specifications 15
9Kramer Protocol 2000 16
Figures
Figure 1: VS-41HD 4x1 HD/SD-SDI Switcher / DA 4
Figure 2: Connecting the VS-41HD 4x1 HD/SD-SDI Switcher / DA 8
Figure 3: VS-41HD SETUP Dipswitches 8
Figure 4: Connecting a PC without using a Null-modem Adapter 9
Figure 5: Controlling via RS-485 (for example, using an RC-3000) 10
Figure 6: Local Area Connection Properties Window 12
Figure 7: Internet Protocol (TCP/IP) Properties Window 12
Figure 8: Using the C.C REMOTE Connector 13

KRAMER: SIMPLE CREATIVE TECHNOLOGY
KRAMER: SIMPLE CREATIVE TECHNOLOGY
Contents
ii
Tables
Table 1: Front Panel VS-41HD 4x1 HD/SD-SDI Switcher / DA 5
Table 2: Rear Panel VS-41HD 4x1 HD/SD-SDI Switcher / DA 5
Table 3: Machine # DIP-switch Settings 9
Table 4: Technical Specifications of the VS-41HD 4x1 HD/SD-SDI Switcher / DA 15
Table 5: Protocol Definitions 16
Table 6: Instruction Codes for Protocol 2000 17

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
Congratulations on purchasing your Kramer VS-41HD 4x1 HD/SD-SDI
Switcher / DA. This product is ideal for:
that are clearly defined by
function.
•Professional broadcasting and production studios
•Post production
The package includes the following items:
•VS-41HD 4x1 HD/SD-SDI Switcher / DA
•Null-modem adapter, infrared remote control transmitter and power cord
•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
2.1 Quick Start
This quick start chart summarizes the basic setup and operation steps.
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 at 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
HD/SD
SDI Camera
HD/SD
SDI Display 2
HD/SD
SDI Display 1
SDI VTR
HD SDI
Camera
HD SDI
Camera

Overview
3
3
3 Overview
The Kramer VS-41HD is a true 4x1 switcher1for standard definition2/ high
definition3
•Input and output signals on BNC connectors and selector buttons
that automatically light up in different colors—red, when the
VS-41HD detects a ‘standard definition’ signal, or blue, when it
detects a ‘high definition’ signal
SDI signals that lets you distribute any one of the four inputs to
two identical outputs. The VS-41HD features:
•Reclocking and equalization on each input
•Distribution of digital information (embedded audio, Teletext, time code
and so on) during the vertical interval period
•The ability to switch genlocked video signals according to timing of the
GENLOCK reference input. Switching according to the Bi-level or
Tri-level Genlock input according to SMPTE RP-1684
•Front panel locking, and an OFF button to disconnect the output
The VS-41HD is housed in a 19" 1U rack mountable enclosure and is fed
from a 100-240 VAC universal switching power supply. It can be controlled
via the front panel buttons, infrared remote control transmitter, remotely, by
RS-232 or RS-485 serial commands transmitted by a touch screen system, PC,
or other serial controller, as well as via the ETHERNET and/or remote contact
closure for forced operation.
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 that may
adversely influence signal quality and position your Kramer VS-41HD
away from moisture, excessive sunlight and dust
4 Your VS-41HD 4x1 HD/SD-SDI Switcher / DA
Figure 1, Table 1, and Table 2 define the VS-41HD 4x1 HD/SD-SDI Switcher / DA.
1 Switching is implemented during the vertical interval period according to the SMPTE RP-168 standard, when using
synchronized SDI sources
2 Standard Definition (SD) means an NTSC or PAL compatible video format, consisting of 480 (for NTSC) or 576 (for PAL)
lines of interlaced video
3 High Definition (HD) in this case includes 480p, 576p, 720p and 1080i (all @ 50/60Hz); 1080p @ 24/25Hz; as well as the
1/1.0001 refresh rates
4 The sources must be genlocked to the GENLOCK input in order to switch cleanly

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Your VS-41HD 4x1 HD/SD-SDI Switcher / DA
4
Figure 1: VS-41HD 4x1 HD/SD-SDI Switcher / DA

Your VS-41HD 4x1 HD/SD-SDI Switcher / DA
5
5
Table 1: Front Panel VS-41HD 4x1 HD/SD-SDI Switcher / DA
#
Feature
Function
1 IR Receiver The red LED is illuminated when receiving signals from the infra-red remote
control transmitter
2 POWER Switch Illuminated switch for turning the unit ON or OFF
3 OFF Button Press to disconnect the outputs
4 INPUT SELECTOR
Buttons Select the input to switch to the output Use to set the resolution when switching genlocked video signals (see section 6.4)
5 LOCK Button Disengages the front panel buttons
Table 2: Rear Panel VS-41HD 4x1 HD/SD-SDI Switcher / DA
#
Feature
Function
6 GENLOCK BNC Connector Connect to the Genlock source
7 TERM Button Press to terminate the Genlock source (75Ω) or release for
looping1
8 LOOP BNC Connector Connect to the GENLOCK connector of the next unit in the line
9 INPUTS BNC Connectors Connect to the serial digital video sources (from 1 to 4)
10 OUTPUTS BNC Connectors Connect the two identical outputs to serial digital video acceptors
(1 and 2)
11 RS-485 Detachable Terminal
Block Port Pin G is for the Ground connection
2
12
; pins B (-) and A (+) are for RS-485
RS-232 DB 9F Port Connects to the PC or the Remote Controller3
13 C.C. REMOTE Terminal
Block Connector Connect to contact closure switches
14 ETHERNET Connector Connects to the PC or other Serial Controller through computer
networking
15 MACH. ID Dipswitches Dipswitches for setting the machine ID number
16 ETH FACTORY RESET
Button Press to reset to factory default definitions
4
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 Extending the input to another unit
2 The ground connection is sometimes connected to the shield of the RS-485 cable. In most applications, the ground is not
connected
3 Via a null-modem connection
4 First disconnect the power cord and then connect it again while pressing the ETH Factory Reset button. The unit will power
up and load its memory with the factory default definitions

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Installing on a Rack
6
5 Installing on a Rack
This section describes what to do before installing in a rack and how to rack
mount.
Before Installing in a Rack How to Rack Mount
Before installing in a rack, be sure that the environment is
within the recommended range: To rack-mount a machine:
1. Attach both ear brackets to the
machine. To do so, remove the
screws from each side of the
machine (3 on each side), and
replace those screws through the
ear brackets.
2. Place the ears of the machine
against the rack rails, and insert the
proper screws (not provided)
through each of the four holes in the
rack ears.
Note that:
•In some models, the front panel
may feature built-in rack ears
•Detachable rack ears can be
removed for desktop use
•Always mount the machine in the
rack before you attach any cables
or connect the machine to the
power
•If you are using a Kramer rack
adapter kit (for a machine that is not
19"), see the Rack Adapters user
manual for installation instructions
(you can download it at:
http://www.kramerelectronics.com)
Operating temperature range +5° to +45° C (41° to 113° F)
Operating humidity range 10 to 90% RHL, non-condensing
Storage temperature range -20° to +70° C (-4° to 158° F)
Storage humidity range 5 to 95% RHL, non-condensing
!
CAUTION
!!
When installing on a 19" rack, avoid hazards by taking
care that:
1. It is located within the recommended environmental
conditions, as the operating ambient temperature of a
closed or multi unit rack assembly may exceed the
room ambient temperature.
2. Once rack mounted, enough air will still flow around
the machine.
3. The machine is placed straight in the correct
horizontal position.
4. You do not overload the circuit(s). When connecting
the machine to the supply circuit, overloading the
circuits might have a detrimental effect on overcurrent
protection and supply wiring. Refer to the appropriate
nameplate ratings for information. For example, for
fuse replacement, see the value printed on the
product label.
5. The machine is earthed (grounded) in a reliable way
and is connected only to an electricity socket with
grounding. Pay particular attention to situations where
electricity is supplied indirectly (when the power cord
is not plugged directly into the socket in the wall), for
example, when using an extension cable or a power
strip, and that you use only the power cord that is
supplied with the machine.

Connecting Your VS-41HD 4x1 HD/SD-SDI Switcher / DA
7
7
6 Connecting Your VS-41HD 4x1 HD/SD-SDI Switcher / DA
You can use your VS-41HD to switch one of the four standard definition / high
definition SDI inputs to the two identical high definition / standard definition
SDI outputs, as the illustration in Figure 2 shows.
To connect the VS-41HD 4x1 HD/SD-SDI Switcher / DA, as shown in the
example in Figure 2, do the following1
1. Connect up to four SDI sources to the INPUTS BNC connectors:
:
An HD/SD SDI camera to INPUT 1
An HD SDI camera to INPUT 2
An HD SDI camera to INPUT 3
An SDI VTR to INPUT 4
2. Connect the SDI OUTPUT BNC connectors to up to2
3. Set the dipswitches (see section
two SDI acceptors (for
example, two HD/SD SDI displays).
6.1).
4. As an option3
A Genlock source to the GENLOCK BNC connector
, connect:
The LOOP BNC connector to the GENLOCK
connector of the next unit in the line, and release the
TERM button for looping4
5. Connect a PC and/or controller (if required), to the:
RS-232 port (see section 6.2), and/or
RS-485 port (see section 6.3), and/or
ETHERNET connector (see section 6.4)
6. If required3, connect a remote contact closure switch (see section 6.6)
7. Connect the power cord5
1 Switch OFF the power on each device before connecting it to your VS-41HD. After connecting your VS-41HD, switch on
its power and then switch on the power on each device
.
2 When only one output is required, connect that output, and leave the other output unconnected
3 Not illustrated in Figure 2
4 Pushed in terminates the input. Release when the input extends to another unit
5 We recommend that you use only the power cord that is supplied with this machine

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Connecting Your VS-41HD 4x1 HD/SD-SDI Switcher / DA
8
Figure 2: Connecting the VS-41HD 4x1 HD/SD-SDI Switcher / DA
6.1 Dipswitch Settings
By default, all dipswitches are set to OFF.
Figure 3 illustrates the VS-41HD dipswitches:
ON 1 2 3 4
Figure 3: VS-41HD SETUP Dipswitches

Connecting Your VS-41HD 4x1 HD/SD-SDI Switcher / DA
9
9
6.1.1 Setting the Machine ID Dipswitches
The Machine ID determines the position of a VS-41HD unit, specifying which
VS-41HD unit is being controlled when several VS-41HD units connect to a
PC or serial controller. Set the Machine number on a VS-41HD unit via
MACH. ID DIPS 1, 2, 3 and 4, according to Table 3.
When using a standalone VS-41HD unit, set the Machine ID to 1. When
connecting more than one VS-41HD unit, set the first machine (the Master)
that is closest to the PC, as Machine ID 1 (dipswitches are set to OFF).
Table 3: Machine # DIP-switch Settings
Mach. #
DIP 1
DIP 2
DIP 3
DIP 4
1 OFF OFF OFF OFF
2 ON OFF OFF OFF
3 OFF ON OFF OFF
4 ON ON OFF OFF
5 OFF OFF ON OFF
6 ON OFF ON OFF
7 OFF ON ON OFF
8 ON ON ON OFF
6.2 Controlling via RS-232 (for example, using a PC)
To connect a PC to the VS-41HD unit, using the Null-modem adapter
provided with the machine (recommended):
•Connect the RS-232 DB9 rear panel port on the VS-41HD unit to the
Null-modem adapter and connect the Null-modem adapter with a 9-
wire flat cable to the RS-232 DB9 port on your PC
To connect a PC to the VS-41HD unit, without using a Null-modem adapter:
•Connect the RS-232 DB9 port on your PC to the RS-232 DB9 rear
panel port on the VS-41HD unit, as Figure 4 illustrates
Figure 4: Connecting a PC without using a Null-modem Adapter

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Connecting Your VS-41HD 4x1 HD/SD-SDI Switcher / DA
10
6.3 Controlling via the RS-485 Port
To cascade up to eight individual VS-41HD units, via RS-485 (with control
via a Master Programmable Remote Control system such as the Kramer
RC-3000), as Figure 5 illustrates, do the following:
1. Connect the “A” (+) and “B” (-) PINS on the RS-485 terminal block port of
the RC-3000 to the “A” (+) and “B” (-) PINS, respectively, on each of the
eight VS-41HD units. (If using shielded twisted pair cable, the shield is
usually connected to the “G” (Ground) PIN of the first unit).
2. Set the first VS-41HD unit as MACHINE # 1 and the following seven
VS-41HD units as MACHINE # 2 to MACHINE # 8, according to Table 3.
MACHINE # 1
MACHINE # 8
KEYBOARD EXTENSION REMOTE CONTACT
RS-485 RS-232 IN RS-232 OUT
12 VDC
1 2 1 2 3 4 5 6 7 8 G4 6 8 103 5 7 9 11 12 14 16
OUT
13 15
IN
RC-3000
RS-485 PINOUT
B
A
_
+
Figure 5: Controlling via RS-485 (for example, using an RC-3000)

Connecting Your VS-41HD 4x1 HD/SD-SDI Switcher / DA
11
11
6.4 Switching two Genlocked Video Signals
The genlock feature lets you switch genlocked video signals according to
timing of the GENLOCK reference input1
Connect the GENLOCK cable.
.
If the HD input signal2
•1080i@60Hz: press and hold INPUT 1 button for 3 seconds. The
button will flash
that is connected is one of the following, it is
necessary to set it up as follows:
3
•1080i@50Hz or 720p@50Hz: press and hold INPUT 2 button for 3
seconds.
The button will flash
to indicate that the set up was completed
3to indicate that the set up was completed
•720p@60Hz: press and hold INPUT 3 button for 3 seconds.
The button will flash3to indicate that the set up was completed
When turning the machine ON, the appropriate button will flash to indicate
the latest setup (last setup is saved).
6.5 Controlling via ETHERNET
You can connect the VS-41HD via the Ethernet, using a crossover cable (see
section 6.5.1) for direct connection to the PC or a straight through cable (see
section 6.5.2) for connection via a network hub or network router.
6.5.1 Connecting the ETHERNET Port directly to a PC (Crossover Cable)
You can connect the Ethernet port of the VS-41HD 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-41HD during the initial configuration
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.
1 According to SMPTE RP-168. The sources must be genlocked to the GENLOCK input in order to switch cleanly
2 The unit will detect automatically when SD-SDI inputs are used
3 If a change is made to the resolution or refresh rate. The button will not flash if the new timing is the same as that
previously selected

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Connecting Your VS-41HD 4x1 HD/SD-SDI Switcher / DA
12
4. Select Properties.
The Local Area Connection Properties window appears.
5. Select the Internet Protocol (TCP/IP) and click the Properties Button (see
Figure 6).
Figure 6: Local Area Connection Properties Window
6. Select Use the following IP address, and fill in the details as shown in
Figure 7.
7. Click OK.
Figure 7: Internet Protocol (TCP/IP) Properties Window

Connecting Your VS-41HD 4x1 HD/SD-SDI Switcher / DA
13
13
6.5.2 Connecting the ETHERNET Port via a Network Hub (Straight-
Through Cable)
You can connect the Ethernet port of the VS-41HD to the Ethernet port on a
network hub or network router, via a straight-through cable with RJ-45
connectors.
6.5.3 Configuring the Ethernet Port
After connecting the Ethernet port, you have to install and configure it.
For detailed instructions on how to install and configure your Ethernet port,
see the “Ethernet Configuration (FC-11) guide.pdf” on our Web site:
http://www.kramerelectronics.com.
6.6 Controlling via the C.C REMOTE Connector
Connecting the C.C REMOTE terminal block connector to a contact closure
switch lets you route an input to the output by remote control. For example, to
route input 1 to the output, as the example in Figure 8 illustrates, momentarily
touch input # 1 to the Ground (G).
Figure 8: Using the C.C REMOTE Connector

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Operating the VS-41HD
14
7 Operating the VS-41HD
You can operate your VS-41HD via:
•The front panel buttons
•RS-232/RS-485 serial commands transmitted by a PC, touch screen
system, or other serial controller
•The Kramer infrared remote control transmitter
•The ETHERNET
To switch an input to the outputs via the front panel buttons1
When selecting an input that is not connected, that input button blinks.
, press the desired
input button.
7.1 Locking the Front Panel
To prevent changing the settings accidentally or tampering with the unit via
the front panel buttons, lock2
To lock the VS-41HD:
your VS-41HD. Unlocking releases the
protection mechanism.
•Press the LOCK button for three seconds, until the LOCK button is
illuminated
The front panel is locked. Pressing a button will have no effect
To unlock the VS-41HD:
•Press the illuminated LOCK button until the LOCK button is no
longer illuminated
The front panel unlocks
1 For details of how to route an input to an output using the REMOTE connector, see section 6.6
2 Nevertheless, even though the front panel is locked you can still operate via RS-232 or RS-485, as well as via the Kramer
IR Remote Control Transmitter

Technical Specifications
15
15
8 Technical Specifications
Table 4 includes the technical specifications:
Table 4: Technical Specifications1
INPUTS:
of the VS-41HD 4x1 HD/SD-SDI Switcher / DA
4 SDI SMPTE-259M, 292M, 344M serial video, 75 ohms on BNC connectors
1 GENLOCK 75Ω/ Hi-Z on looping BNC connectors, bi level, Tri level inputs
OUTPUTS: 2 identical equalized and reclocked SMPTE-259M, 292M, 344M outputs 75
ohms on BNC connectors
MAX. OUTPUT LEVEL: 800mVpp /75 ohms
JITTER: Better than 0.2UI
DATA RATE: Up to 1.485Gbps
CONTROLS: Front-panel, RS-232; RS-485, ETHERNET, infra-red remote, dry contact,
and panel lock
POWER SOURCE: Universal, 100-240VAC, 50/60Hz 22VA
DIMENSIONS: 19 inch (W), 7 inch (D), 1U (H) rack mountable
WEIGHT: 1.5kg. (3.3lbs.) approx.
ACCESSORIES: Power cord, Null-modem Adapter
1 Specifications are subject to change without notice

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Kramer Protocol 2000
16
9 Kramer Protocol 2000
The VS-41HD is compatible with Kramer’s Protocol 2000 (version 0.46)
(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.
Table 5: Protocol Definitions
MSB LSB
DESTI-
NATION
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.
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.
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.

Kramer Protocol 2000
17
17
Table 6: Instruction Codes for Protocol 2000
Note: All values in the table are decimal, unless otherwise stated.
INSTRUCTION
DEFINITION FOR SPECIFIC INSTRUCTION
NOTE
#
DESCRIPTION
INPUT
OUTPUT
0
RESET VIDEO
0
0
1
1 SWITCH VIDEO Set equal to video input
which is to be switched
(0 = disconnect)
Set equal to video output which is
to be switched
(0 = to all the outputs)
2,
5
REQUEST STATUS OF A
VIDEO OUTPUT
0
Equal to output number whose
status is read
4
16
ERROR / BUSY
0
0 - error
1 - invalid instruction
2 - out of range
9
30
LOCK FRONT PANEL
0 - Panel unlocked
1 - Panel locked
0
2
31
REQUEST WHETHER PANEL
IS LOCKED
0
0
16
61 IDENTIFY MACHINE 1 - video machine name
3 - video software version
0 - Request first 4 digits
1 - Request first suffix
10 - Request first prefix
13
62 DEFINE MACHINE 1 - number of inputs
2 - number of outputs
3 - number of setups
1 - for video
14
NOTES on the above table:
NOTE 1 - When the master switcher is reset, (e.g. when it is turned on), the reset code is sent to the PC. If this code is sent to
the switchers, it will reset according to the present power-down settings.
NOTE 2 - These are bi-directional definitions. That is, if the switcher receives the code, it will perform the instruction; and if
the instruction is performed (due to a keystroke operation on the front panel), then these codes are sent. For example, if the
HEX code
01 85 88 83
was sent from the PC, then the switcher (machine 3) will switch input 5 to output 8. If the user switched input 1 to output 7
via the front panel keypad, then the switcher will send HEX codes:
41 81 87 83
to the PC.
When the PC sends one of the commands in this group to the switcher, then, if the instruction is valid, the switcher replies by
sending to the PC the same four bytes that it was sent (except for the first byte, where the DESTINATION bit is set high).
NOTE 4 - The reply to a "REQUEST" instruction is as follows: the same instruction and INPUT codes as were sent are
returned, and the OUTPUT is assigned the value of the requested parameter. For example, if the present status of a Video
Output 1 is 3, then the reply to the HEX code
05 80 81 81
would be HEX codes
45 80 83 81
NOTE 9 - An error code is returned to the PC if an invalid instruction code was sent to the switcher, or if a parameter
associated with the instruction is out of range. This code is also returned to the PC if an RS-232 instruction is sent while the
machine is being programmed via the front panel. Reception of this code by the switcher is not valid.
NOTE 13 - This is a request to identify the switcher/s in the system. If the OUTPUT is set as 0, and the INPUT is set as 1, 2,
5 or 7, the machine will send its name. The reply is the decimal value of the INPUT and OUTPUT. For example, for a 2216,
the reply to the request to send the audio machine name would be (HEX codes):
7D 96 90 81 (i.e. 128dec+ 22dec for 2nd byte, and 128dec+ 16dec for 3rd byte).
If the request for identification is sent with the INPUT set as 3 or 4, the appropriate machine will send its software version
number. Again, the reply would be the decimal value of the INPUT and OUTPUT - the INPUT representing the number in
front of the decimal point, and the OUTPUT representing the number after it. For example, for version 3.5, the reply to the
request to send the version number would be (HEX codes):
7D 83 85 81 (i.e. 128dec+ 3dec for 2nd byte, 128dec+ 5dec for 3rd byte).