Kramer Electronics Projector VP 23RC User Manual

Kramer Electronics, Ltd.  
USER MANUAL  
Model:  
VP-23RC  
Presentation Switcher / Controller  
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Contents  
9.3.4 Turning the Light of the Backlit Buttons On and Off  
34  
9.4  
The Presentation Switcher Section Operation  
34  
34  
35  
37  
9.4.1 The Independent Switchers Mode  
9.4.2 The Master Audio Mode  
9.4.3  
The Presentation Switcher SELECTOR Buttons Macro Sequence  
10  
Flash Memory Upgrade  
38  
10.1  
Flash Memory Upgrade for the Presentation Switcher Section  
38  
38  
38  
39  
10.1.1 Downloading from the Internet  
10.1.2 Connecting the PC to the RS-232 Port  
10.1.3 Upgrading the Firmware  
10.2  
Flash Memory Upgrade for the Media / Room Controller Section  
43  
43  
43  
44  
44  
10.2.1 Downloading from the Internet  
10.2.2 Connecting the PC to the RS-232 Port  
10.2.3 Upgrading Firmware  
10.2.4 Installing the Web Applet  
10.3  
Troubleshooting Firmware Upgrade Issues  
45  
11  
Technical Specifications  
46  
12  
12.1  
Hex Table  
Audio Gain Control Hex Tables  
47  
47  
13  
Communication Protocol  
49  
Figures  
Figure 1: VP-23RC Configuration Example  
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9
Figure 2: VP-23RC Presentation Switcher / Controller – Front View  
Figure 3: VP-23RC Presentation Switcher / Controller – Rear View  
Figure 4: VP-23RC Presentation Switcher / Controller – Underside View  
Figure 5: Connecting the VP-23RC Presentation Switcher Section  
Figure 6: Connecting the Balanced Stereo Audio Input/Output  
Figure 7: Connecting the Unbalanced Stereo Audio Input  
Figure 8: Connecting the Unbalanced Stereo Audio Output  
Figure 9: CAT 5 PINOUT  
Figure 10: Connecting the VP-23RC Media/Room Controller Section  
Figure 11: Connecting a PC without using a Null-modem Adapter  
Figure 12: Default Dipswitch Settings  
Figure 13: Control Configuration via RS-232 and RS-485  
Figure 14: Local Area Connection Properties Window  
Figure 15: Internet Protocol (TCP/IP) Properties Window  
Figure 16: Example of a Typical Media/Room Controller Section Configuration  
Figure 17: Example of a Typical Setup in the Lecture Auditorium  
Figure 18: Labels Setup  
11  
13  
16  
17  
17  
17  
18  
20  
23  
24  
25  
26  
27  
30  
31  
32  
33  
35  
36  
37  
39  
Figure 19: VP-23RC Operation Example  
Figure 20: Separate Switcher Mode  
Figure 21: Switching in the Master Audio Mode  
Figure 22: Presentation Switcher Macro Sequence Example  
Figure 23: Splash Screen  
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Contents  
Figure 24: Atmel – Flip Window  
Figure 25: Device Selection Window  
Figure 26: Selecting the Device from the Selection Window  
Figure 27: Loading the Hex  
Figure 28: RS-232 Window  
Figure 29: Atmel – Flip Window (Connected)  
Figure 30: Atmel – Flip Window (Operation Completed)  
Figure 31: The KFR-Programmer Window  
39  
40  
40  
41  
41  
42  
42  
44  
Tables  
Table 1: Terminology Used in this User Manual  
Table 2: Front Panel VP-23RC Presentation Switcher / Controller Features  
Table 3: Rear Panel VP-23RC Presentation Switcher / Controller Features  
Table 4: VP-23RC Underside Panel Features  
Table 5: CAT 5 PINOUT  
Table 6: PROGRAM Dipswitch Settings  
Table 7: Connecting an RS-232 Port to a PC  
Table 8: Dipswitch Settings  
7
10  
12  
13  
18  
21  
23  
24  
30  
32  
Table 9: Connection Scheme (for the example in Figure 16)  
Table 10: The Commands Configuration  
Table 11: Technical Specifications of the VP-23RC Presentation Switcher / Controller 46  
Table 12: VP-23RC Hex Table  
47  
47  
47  
47  
48  
48  
49  
50  
Table 13: VP-23RC Master Audio Selector Hex Table  
Table 14: Set the Audio Output Gain Control for the Groups  
Table 15: Set the Audio Output Gain Control for the Microphone  
Table 16: Set the Audio Output Gain Control for the Master Audio  
Table 17: Increase or Decrease the Audio Output Gain by One Step  
Table 18: Protocol Definitions  
Table 19: Instruction Codes  
iii  
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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 11 groups1 that are clearly defined by function.  
Congratulations on purchasing your Kramer VP-23RC Presentation Switcher  
/ Controller, which is ideal for:  
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Controlling multimedia rooms, such as classrooms, auditoriums,  
conference rooms and so on  
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Production studios, rental and staging  
The package includes:  
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VP-23RC  
Windows®-based Kramer control software and Kramer RC Configuration  
software  
Null-modem adapter, power cord2, and one 3.5mm to IR emitter control cable  
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Kramer RC-IR2 Infrared Remote Control Transmitter (including the  
required batteries and a separate user manual3)  
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This user manual3  
2 Getting Started  
We recommend that you:  
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Unpack the equipment carefully and save the original box and packaging  
materials for possible future shipment  
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Review the contents of this user manual  
Use Kramer high performance high resolution cables4  
2.1 Quick Start  
This quick start chart summarizes the basic setup and operation:  
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 We recommend that you use only the power cord that is supplied with this machine  
1
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Getting Started  
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2
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Overview  
3 Overview  
This section describes:  
ñ
Using shielded twisted pair (STP)/unshielded twisted pair (UTP) (see  
section 6.3)  
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The VP-23RC (see section 3.1)  
°
°
°
Presentation Switcher section (see section 3.1.1)  
Media / Room Controller (see section 3.1.2)  
Means of control (see section 3.1.3)  
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An example of how to connect the VP-23RC (see section 3.2)  
Recommendations for achieving the best performance (see section 3.3)  
Terminology used in this user manual (see section 3.4)  
3.1 About the VP-23RC  
The VP-23RC is a high quality all-in-one Presentation Switcher and Media/Room  
Controller, which lets you control A/V equipment and room items such as window  
blinds, room lights, and a projector lift. The VP-23RC includes two major  
sections: the Presentation Switcher section and the Media/Room Controller  
section, each of which can be operated independently, or in tandem.  
3.1.1  
Understanding the Presentation Switcher Section  
The Presentation Switcher section includes three independent 4x1 audio/video  
switchers1, and a master audio switcher2.  
The VP-23RC Presentation Switcher section features:  
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Three sets of four selector buttons (for composite video and audio, s-Video  
and audio, and VGA/UXGA and audio), and four master audio selector  
buttons (CV, s-Video, VGA/UXGA and Mic). Each of these 16 selector  
buttons lets you select the inputs to switch to the outputs and can be  
configured3 to carry out a sequence of up to 15 commands (a macro) so  
that when pressing a configured button, the switching action is followed  
by a macro sequence  
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VGA/UXGA video bandwidth of 350MHz to ensure transparent  
performance even in the most critical applications, and is HDTV compatible  
Composite/SDI video bandwidth of 650MHz, an s-Video bandwidth of  
385MHz, and a CAT 5 bandwidth of 158MHz  
1 A 4x1 switcher for composite video and audio, a 4x1 switcher for s-Video and audio, and a 4x1 switcher for computer  
graphics (VGA/UXGA) signals with audio  
2 That routes one of the pre-selected audio inputs (from these three switchers) to two separate outputs  
3 By the system integrator  
3
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Overview  
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Digital microphone input level control and digital master audio level  
control  
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Microphone talk-over mode1  
A CAT 5 output, with a transmission range of more than 300 feet (over 100  
meters) that transmits VGA/UXGA signals2 to a remote acceptor via a  
receiver  
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An internal 5-Watt per channel (24kHz, 3dB) power amplifier for  
connecting the speakers directly to the machine  
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ñ
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A panel LOCK button to prevent tampering with the front panel  
Recall of the previous setup from non-volatile memory  
Audio output level change (via RS-232)  
3.1.2  
Understanding the Media / Room Controller Section  
The Media/Room Controller section controls A/V equipment—especially  
projectors and associated equipment3—in media rooms (such as classrooms,  
boardrooms, or auditoriums), as well as room functions such as lights, blinds,  
a projector lift and/or a screen motor.  
The VP-23RC Media/Room Controller section includes:  
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Eight configurable buttons to set up any supported commands  
An Ethernet port4 for configuration and control  
Two bidirectional RS-2325 serial ports for universal display (for example,  
projectors) and control of the VP-23RC (or other) switcher  
ñ
Four relays for the simplified and centralized control of room functions  
(such as lights, blinds, screen settings, and so on). The relays have  
normally open (NO) and normally closed (NC) contacts  
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Three IR control ports  
An IR-learner for the customized remote transmitters, without the need for  
an external unit IR remote control  
ñ
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Macro mode operation, for programming up to 15 commands with the  
press of a single button  
Firmware upgrade support  
1 The microphone input signal lowers the line audio output level when the connected microphone detects sound  
2 Excludes audio  
3 Including the A/V equipment connected to the VP-23RC Presentation Switcher section  
4 Also for controlling the Presentation Switcher section  
5 The RS-232 terminal block port (item 14 in Figure 3) is also used for firmware upgrade  
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Overview  
3.1.3  
Controlling the VP-23RC  
Control the VP-23RC using the front panel buttons, or remotely via:  
ñ
RS-2321 serial commands transmitted by a touch screen system, PC, or  
other serial controller  
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The Kramer Infrared remote control transmitter  
The ETHERNET2  
The VP-23RC is dependable, rugged, and fits into two vertical spaces (2U) of  
a standard 19” professional rack.  
1 The RS-232 port (item 24 in Figure 3) located in the SWITCHER CONTROL area of the rear panel  
2 The Ethernet port is located in the CONTROLLER area of the rear panel and is also used for configuration of the  
media/room controller section by the system integrator  
5
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Overview  
3.2 Connecting the VP-23RC Rear Panel  
The VP-23RC can be connected in different configurations, integrating the  
Presentation Switcher section with the Media/Room Controller section. The  
block diagram in Figure 1 shows a VP-23RC configuration example:  
IR Emitters  
RS-232  
Figure 1: VP-23RC Configuration Example  
In this example:  
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Three VIDEO sources are connected to the inputs  
The three VIDEO outputs are all connected to the same projector  
The projector is connected to the RS-232 port in the CONTROLLER area  
Two of the video sources are also connected to the IR terminal blocks  
A CAT 5 UXGA receiver is connected  
Various room items are connected to the RELAY terminal blocks  
A microphone and speakers are connected, as well as the audio inputs and  
outputs  
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Overview  
To connect the VP-23RC as illustrated in the block diagram in Figure 1:  
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Connect the A/V equipment1 to the Presentation Switcher section (see  
section 6)  
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Connect the A/V equipment and room items to the Media/Room  
Controller section (see section 7)  
3.3 Recommendations for Achieving the Best Performance  
To achieve the best performance:  
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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)  
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Avoid interference from neighboring electrical appliances and position  
your Kramer VP-23RC away from moisture, excessive sunlight and dust  
3.4 Terminology Used in this User Manual  
Table 1 defines 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 Computers sharing a common communications line or wireless link, which often share a  
(LAN)  
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.  
1 Such as DVD players, video players, speakers and so on  
7
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Your Presentation Switcher / Controller  
4 Your Presentation Switcher / Controller  
The VP-23RC front and rear panels relate in the following way:  
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The Presentation Switcher section relates to the AUDIO, VIDEO and  
SWITCHER CONTROL areas on the rear panel  
The Media/Room Controller section relates to the CONTROLLER area on  
the rear panel  
The Power connector, the RS-232 port in the SWITCHER CONTROL  
AREA and the ETHERNET port are common to both sections  
This section describes the VP-23RC:  
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Front panel (see section 4.1)  
Rear panel (see section 4.2)  
Underside panel (see section 4.3)  
4.1 The VP-23RC Front Panel  
Figure 2 and Table 2 define the front panel of the VP-23RC.  
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Your Presentation Switcher / Controller  
Figure 2: VP-23RC Presentation Switcher / Controller – Front View  
9
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Your Presentation Switcher / Controller  
Table 2: Front Panel VP-23RC Presentation Switcher / Controller Features  
#
1
Feature  
IR (Infrared) Receiver  
Function  
Signals from the Kramer remote control transmitter illuminate  
the LED  
2
3
4
POWER Switch  
IR IN Receiver  
MEDIA / ROOM CONTROLLER  
Buttons  
s-VIDEO (Y/C)-AUDIO SELECTOR  
Buttons  
VIDEO (CV)-AUDIO SELECTOR  
Buttons  
Illuminated switch for turning the unit ON or OFF  
Accepts IR remote commands for the IR learner feature1  
Control the room and the A/V equipment (from 1 to 8)2  
5
6
7
8
Selects the s-Video-audio source (from 1 to 4)2  
Selects the composite video-audio source (from 1 to 4)2  
Selects the VGA/UXGA video-audio source from (1 to 4)2  
VGA/UXGA-AUDIO SELECTOR  
Buttons  
CV Button  
Press to route the selected audio signal from the composite  
video section to the master audio outputs3  
s-VIDEO Button  
Press to route the selected audio signal from the s-Video  
section to the master audio outputs3  
MASTER  
AUDIO  
SELECTOR2  
VGA/UXGA Button Press to route the selected audio signal from the  
VGA/UXGA section to the master audio outputs3  
MIC Button  
Press to route the microphone input to the master audio  
outputs3  
9
- Button Decrease the microphone audio signal level  
+ Button Increase the microphone audio signal level  
+ Button Increase the master audio signal level  
- Button Decrease the master audio signal level  
Press to lock the front panel buttons  
MIC  
10  
11  
12  
AUDIO LEVEL  
MASTER  
13 LOCK Button  
14 TALK OVER Button  
Push the button to activate talk over4  
4.2 The VP-23RC Rear Panel  
Figure 3 and Table 3 define the rear panel of the VP-23RC.  
1 Used by the system integrator only, see section 9.2  
2 Each button when pressed can also execute a macro sequence of up to 15 programmed commands (as configured by the  
system integrator)  
3 MASTER OUT and SPKR OUT  
4 With the TALK OVER button selected, speaking into the microphone amplifies the voice of the speaker, overriding and  
fading out all other audio channels. However, pressing the MIC button in the Master Audio Selector renders the Talk Over  
function inactive  
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Your Presentation Switcher / Controller  
Figure 3: VP-23RC Presentation Switcher / Controller – Rear View  
11  
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Your Presentation Switcher / Controller  
Table 3: Rear Panel VP-23RC Presentation Switcher / Controller Features  
#
1
2
Feature  
MIC IN Connector  
COND. / DYN Selector Switch  
Function  
Connect to the microphone  
Push in to select a condenser, release to select a  
dynamic microphone  
3
4
5
6
7
CV OUT Terminal Block Connector  
Y/C OUTTerminal Block Connector  
Connect to the composite video balanced audio acceptor  
Connect to the s-Video balanced audio acceptor  
UXGA OUT Terminal Block Connector Connect to the VGA/UXGA balanced audio acceptor  
MASTER OUT Terminal Block Connector Connect the master balanced audio channel acceptor1  
CV IN Terminal Block Connectors  
Connect to the composite video balanced audio sources2  
8
9
Y/C IN Terminal Block Connectors  
UXGA IN Terminal Block Connectors  
Connect to the s-Video balanced audio sources2  
Connect to the VGA/UXGA balanced audio sources2  
10  
11  
SPKR OUT Terminal Block Connector Connect to a pair of loudspeakers  
RELAY Terminal Block Connector  
Connect each relay2 to a room item. The PINOUT is:  
NO: Normally Open; C: Common; NC: Normally  
Closed  
12  
13  
14  
IR Terminal Block Connectors  
ETHERNET Connector  
Connect to an IR emitter cable (from IR1 to IR 3)  
Connects to the PC through computer networking3  
Connect to the RS-232 port of the A/V equipment or a  
PC or other Serial Controller  
RS-232 Port 1:Terminal Block  
Ports  
Connector (G, Rx, Tx)4  
15  
16  
Port 2: 9-pin D-sub Connector  
PROGRAM Dipswitches  
DIP1 is for firmware upgrade (see section 10.2); DIP 3  
is for factory reset; DIP 2 and DIP 4 are not used (see  
section 7.1)  
17  
18  
19  
20  
21  
22  
23  
CV IN BNC Connectors  
CV OUT BNC Connector  
Y/C IN 4-pin Connectors  
Y/C OUT 4-pin Connector  
UXGA IN 15-pin HD Connectors  
UXGA OUT 15-pin HD Connector  
Connect to the composite video sources2  
Connect to the composite video acceptor  
Connect to the s-Video sources2  
Connect to the s-Video acceptor  
Connect to the VGA/UXGA video sources2  
Connect to the VGA/UXGA video acceptor  
UXGA CAT5 OUT  
RJ-45 Connector  
Connect to a remote computer graphics acceptor via  
a receiver (for example, the TP-120), see section 3.2  
24  
25  
RS-232 9-pin D-sub Port  
FLASH PROG. Button  
Connect to a PC to control the VP-23RC  
Push in to upgrade the Presentation Switcher section to  
the latest Kramer firmware (see section 10.1), or  
release for Normal (the factory default)  
26  
27  
28  
RS-485 Terminal Block Port  
Dipswitches  
Pins B (-) and A (+) are for RS-485; Pin G may be  
connected to the shield (if required)  
DIPs 1, 2 and 3 are OFF, DIP 4 is ON for RS-485  
termination  
Power Connector with Fuse  
AC connector enabling power supply to the unit  
1 Both the MASTER OUT and the SPKR OUT terminal block connectors receive the same signal: the MASTER OUT  
outputs the signal as it is while the SPKR OUT is amplified  
2 From 1 to 4  
3 To configure the Media/Room Controller section or control the VP-23RC via the ETHERNET  
4 Port 1 can connect to a PC to upgrade the firmware of the Media/Room Controller section  
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Your Presentation Switcher / Controller  
4.3 The VP-23RC Underside Panel  
Figure 4 and Table 4 define the VP-23RC underside features:  
RESET  
VS  
HS  
Figure 4: VP-23RC Presentation Switcher / Controller – Underside View  
Table 4: VP-23RC Underside Panel Features  
Feature  
RESET Button  
VS Switch  
Function  
Press to reset the unit prior to firmware upgrade (see section 10.1)  
Slide the switch to the left (to NORMAL) to retain the polarity of the  
vertical sync pulses on the UXGA CAT5 OUT connector; slide the switch  
to the right1 to change the vertical sync pulses on the UXGA CAT5 OUT  
connector (VS) polarity to NEGATIVE polarity2  
HS Switch  
Slide the switch to the left (to NORMAL) to retain the polarity of the  
horizontal sync pulses on the UXGA CAT5 OUT connector; slide the  
switch to the right1 to change the horizontal sync pulses on the UXGA  
CAT5 OUT connector (HS) polarity to NEGATIVE polarity2  
1 By default, both switches are set to the left  
2 Downgoing syncs  
13  
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Installing the VP-23RC on a Rack  
5 Installing the VP-23RC on a Rack  
This section describes what to do before installing on a rack and how to rack  
mount.  
Before Installing on a Rack  
How to Rack Mount  
Before installing on a rack, be sure that the environment is  
within the recommended range:  
Operating temperature range +5°to +45°C (41°to 113°F)  
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.  
Operating humidity range  
10 to 90% RHL, non-condensing  
Storage temperature range  
Storage humidity range  
-20°to +70°C (-4°to 158°F)  
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.  
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.  
3. The machine is placed straight in the correct  
horizontal position.  
Note that:  
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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  
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.  
ñ
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)  
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Connecting the VP-23RC Presentation Switcher Section  
6 Connecting the VP-23RC Presentation Switcher Section  
To connect1 the VP-23RC Presentation Switcher section, as illustrated in the  
example in Figure 5, do the following2:  
1. Connect the following video sources:  
°
°
°
One3 composite video source (for example, a composite video player)  
to the CV IN 1 BNC connector  
One3 s-Video source (for example, an s-Video player) to the Y/C IN 1  
4-pin connector  
One3 VGA/UXGA source (for example, a computer graphics source)  
to the UXGA IN 1 15-pin HD connector  
2. Connect the acceptors to a projector4 as follows:  
°
°
°
The composite video CV OUT BNC connector to the composite video  
input of the projector  
The s-Video Y/C OUT 4-pin connector to the s-Video input of the  
projector  
The VGA/UXGA UXGA OUT 15-pin HD connector to the  
VGA/UXGA input of the projector  
3. Connect the appropriate balanced5 audio sources and acceptors (not shown in  
Figure 5).  
4. If required, connect the MASTER OUT terminal block connector (not shown  
in Figure 5; see section 9.4.2).  
5. Connect the SPKR OUT block connector to a pair of loudspeakers, by  
connecting the left loudspeaker to the “L+” and the “L-” terminal block  
connectors, and the right loudspeaker to the “R+” and the “R-” terminal block  
connectors. Do not Ground the loudspeakers.  
6. Connect the UXGA CAT5 OUT twisted pair connector (see section 6.2) to a  
line receiver (for example, the TP-120 XGA Line Receiver6, which is  
connected to a remote display).  
7. If required, connect a dynamic or a condenser microphone7 to the MIC IN XLR  
connector.  
1 You do not need to connect all the inputs  
2 Switch OFF the power on each device before connecting it to your VP-23RC. After connecting your VP-23RC, switch on  
its power and then switch on the power on each device  
3 Although in this example only one source is connected, you can connect all of the four inputs, that is, 12 in total  
4 In this example a projector is used, but you can also connect separate outputs such as displays or video recorders  
5 To connect audio inputs and outputs, see section 6.1  
6 The receiver receives the CAT 5 signal, decodes it and outputs it to a VGA acceptor  
7 Use the Con / Dyn switch (refer to the rear panel, item 2 in Figure 3) to select a dynamic microphone or a condenser  
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Connecting the VP-23RC Presentation Switcher Section  
8. If required, connect a PC to the RS-232 port (see section 8.1.1).  
Figure 5: Connecting the VP-23RC Presentation Switcher Section  
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Connecting the VP-23RC Presentation Switcher Section  
6.1 Connecting the Balanced/Unbalanced Stereo Audio Input/Output  
Figure 6 illustrates how to wire a balanced input/output connection:  
Figure 6: Connecting the Balanced Stereo Audio Input/Output  
Figure 7 illustrates how to wire an unbalanced input:  
Figure 7: Connecting the Unbalanced Stereo Audio Input  
Figure 8 illustrates how to wire an unbalanced acceptor to the balanced output  
of the unit:  
Figure 8: Connecting the Unbalanced Stereo Audio Output  
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Connecting the VP-23RC Presentation Switcher Section  
6.2 Wiring the CAT 5 LINE OUT RJ-45 Connector  
Table 5 and Figure 9 define the CAT 5 PINOUT, using a straight pin-to-pin  
cable with RJ-45 connectors:  
Figure 9: CAT 5 PINOUT  
Table 5: CAT 5 PINOUT  
EIA /TIA 568A  
EIA /TIA 568B  
PIN  
1
Wire Color  
Green / White  
Green  
Orange / White  
Blue  
Blue / White  
Orange  
PIN  
1
Wire Color  
Orange / White  
Orange  
Green / White  
Blue  
Blue / White  
Green  
Brown / White  
Brown  
2
3
4
5
6
7
8
2
3
4
5
6
7
8
Brown / White  
Brown  
Pair 1  
Pair 2  
Pair 3  
Pair 4  
4 and 5  
3 and 6  
1 and 2  
7 and 8  
Pair 1  
Pair 2  
Pair 3  
Pair 4  
4 and 5  
1 and 2  
3 and 6  
7 and 8  
6.3 Shielded Twisted Pair (STP) / Unshielded Twisted Pair (UTP)  
We recommend that you use shielded twisted pair (STP) cable. There are  
different levels of STP cable available, and we advise you to use the best  
quality STP cable that you can afford. Our non-skew-free cable, Kramer  
BC-STP, which is intended for digital signals and for analog signals where  
skewing is not an issue, is recommended for the VP-23RC. For cases where  
there is skewing, our UTP skew-free cable, Kramer BC-XTP, may be used.  
Bear in mind, though, that we advise using STP cables where possible, since  
the compliance to electromagnetic interference was tested using those cables.  
Although unshielded twisted pair (UTP) cable might be preferred for long  
range applications, the UTP cable should be installed far away from electric  
cables, motors and so on, which are prone to create electrical interference. However,  
since the use of UTP cable might cause inconformity to electromagnetic standards,  
Kramer does not commit to meeting the standard with UTP cable.  
You can connect to a remote computer graphics acceptor via a receiver (for  
example, the TP-120), see section 3.2.  
Some Kramer twisted pair products include the Power Connect feature. The  
VP-23RC does not have this feature.  
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Connecting to the Media / Room Controller Equipment  
7 Connecting to the Media / Room Controller Equipment  
To connect1 the VP-23RC Media/Room Controller section, as the example  
illustrated in Figure 10 shows, do the following2:  
1. Connect the RELAY3 terminal block connectors as follows:  
°
°
°
°
Connect RELAY 1 to the blinds  
Connect RELAY 2 to the lighting system  
Connect RELAY 3 to the projector lift  
Connect RELAY 4 to the screen  
2. Connect the IR terminal block connectors4, via the Kramer IR Emitter Control  
Cable (C-A35/IRE-10)5, as follows:  
°
°
Connect IR 1 to the composite video player (connected  
to CV IN 1 on the VP-23RC)  
Connect IR 2 to the s-Video player (connected to Y/C  
IN 1 on the VP-23RC)  
3. Connect the RS-232 port 1 to the projector6.  
4. Set the PROGRAM dipswitches (see section 7.1).  
5. Connect the power cord.  
Upon completion of the installation, and before operation, the VP-23RC needs  
to be configured by the system integrator (see section 9.2)  
1 You do not need to connect all the items  
2 Note that Figure 10 emphasizes the connections related to the Media/Room Controller section, other connections are grayed  
out  
3 On each 3-pole terminal block connector, connect either: C to NO, or C to NC (C is Common, NO is Normally Open and  
NC is Normally Closed)  
4 VP-23RC has three IR emitters. In this example only two IR emitters are connected  
5 Refer to the cables’ user manuals for installation instructions. In addition, two IR Emitter Extension Cables are also  
available: a 15 meter cable and a 20 meter cable  
6 In this example only Port 1 is connected, but you can also connect the RS-232 port 2 to a display or other device (or, if  
required, connect it to a PC for firmware upgrade, see section 10.2)  
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Connecting to the Media / Room Controller Equipment  
s-Video  
Player  
Screen  
Blinds  
Composite  
Video  
Player  
Projector  
Computer  
Graphics Source  
Projector  
Lift  
Lighting  
System  
Figure 10: Connecting the VP-23RC Media/Room Controller Section  
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Connecting to the Media / Room Controller Equipment  
7.1 Setting the Media / Room Controller PROGRAM Dipswitches  
The PROGRAM dipswitches are located in the CONTROLLER area of the  
rear panel (see section 7.1). Table 6 defines the PROGRAM dipswitch  
settings:  
Table 6: PROGRAM Dipswitch Settings  
DIPS  
Description  
ON for Firmware Upgrade (see section 10.2)  
Not used  
1
2
3
4
ON for Factory Reset (see section 7.1.1)  
Not used  
7.1.1  
Factory Reset  
Factory reset clears all the button macro configurations1, serial ports definition and  
also returns the IP number, Gateway and Net mask to their preset default settings2.  
Warning: Factory Reset erases all the configured button macros  
To reset the Media/Room Controller to its default settings, do the following:  
1. Turn the power on the VP-23RC OFF.  
2. Set DIP 3 ON.  
3. Turn the power on the VP-23RC ON.  
The machine initializes after about 5 seconds  
4. Set DIP 3 OFF.  
1 On the Media/Room Controller buttons as well as on the Presentation Switcher SELECTOR buttons  
2 IP number: 192.168.1.39, Gateway: 0.0.0.0, and Net mask: 255.255.0.0  
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Controlling the VP-23RC  
8 Controlling the VP-23RC  
The VP-23RC can be controlled via:  
ñ
ñ
ñ
A PC (see section 8.1)  
RS-232 and RS-485 (see section 8.2)  
The ETHERNET (see section 8.3)  
8.1 Controlling the VP-23RC via a PC  
To control the VP-23RC1 via the control software:  
1. Connect your PC to the SWITCHER CONTROL RS-232 port on the rear  
panel (see section 8.1.1).  
2. Download the Windows®-based Kramer control software (provided with the  
machine) to your PC.  
3. Run the application. The Port window appears.  
4. Select the Local Connection area, select the COM port2 to which the  
VP-23RC is connected, and click OK.  
The application finds the unit automatically.  
1 The Media/Room Controller section can be controlled by a PC only if the MEDIA / ROOM CONTROLLER buttons are  
configured (see section 9.2)  
2 If you want to use the Windows®-based Kramer control software via the Ethernet, select the Remote Connection area,  
insert the machine’s IP number and set the port to 5002  
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Controlling the VP-23RC  
Connecting an RS-232 port to a PC  
8.1.1  
You can connect a PC to the VP-23RC via an RS-232 port, as defined in Table 7:  
Table 7: Connecting an RS-232 Port to a PC  
RS-232 Rear Panel Port Location  
For…  
Port 1 in the CONTROLLER area  
ñ
ñ
Media/Room Controller firmware upgrade (see section 10.2)  
RS-232 port in the SWITCHER  
CONTROL area  
Presentation Switcher firmware upgrade (see section 10.1)  
ñ
ñ
Controlling the VP-23RC via a PC (see section 8)  
Controlling other Kramer machines that are connected to  
the VP-23RC via RS-485 (see section 8.2)  
To connect a PC using the Null-modem adapter provided with the machine  
(recommended method):  
ñ
Connect the RS-232 9-pin D-sub rear panel port1 on the VP-23RC to the  
Null-modem adapter2 via a 9-wire flat cable and connect the Null-modem  
adapter to the RS-232 9-pin D-sub port on your PC  
To connect without using a Null-modem adapter:  
ñ
Connect the RS-232 9-pin D-sub port on your PC to the RS-232 9-pin  
D-sub rear panel port on the VP-23RC, as Figure 11 illustrates  
PIN 5 Connected to PIN 5 (Ground)  
PIN 3 Connected to PIN 2  
PIN 2 Connected to PIN 3  
Female DB9 (From PC)  
Male DB9  
PIN 4 Connected to PIN 6  
PINS 8, 7, 1 Connected together  
If a Shielded cable is used, connect the shield to PIN 5  
Figure 11: Connecting a PC without using a Null-modem Adapter  
1 Select the RS-232 port according to your needs, as defined in Table 7  
2 For the male RS-232 port (port 2 in the CONTROLLER area), use a male-to-female adapter  
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Controlling the VP-23RC  
8.2 Controlling Additional Kramer Machines via RS-232 and RS-485  
You can cascade other Kramer machines1 together with the VP-23RC via the  
RS-485 port, and control them via the SWITCHER CONTROL RS-232 port  
using a PC.  
To connect two Kramer VP-8x8A machines to the VP-23RC, via RS-485, as  
illustrated in the example in Figure 13, do the following:  
1. Connect the audio/video sources and acceptors on the VP-23RC and on the  
additional Kramer machines (refer to the relevant user manuals for  
installation instructions).  
2. Connect the RS-232 port on the VP-23RC unit to the PC using the  
Null-modem adapter provided with the machine (recommended), as section  
8.1.1 describes.  
3. Connect the RS-485 terminal block port on the VP-23RC to the RS-485 port  
on the first VP-8x8A. Connect the RS-485 port on the first VP-8x8A to the  
RS-485 port on the second VP-8x8A machine.  
4. Set the dipswitches as follows:  
°
Set the Machine number of each of the other units to a  
machine number other than machine number 1  
°
Set Dip 4 ON on the VP-23RC (RS-485 TERM) and  
terminate the RS-485 line on the last unit  
8.2.1  
The Presentation Switcher Section Dipswitches  
The Switcher setup dipswitches are located in the SWITCHER CONTROL  
area of the rear panel. Table 8 and Figure 12 define the factory default  
dipswitch settings2:  
Table 8: Dipswitch Settings  
DIPS  
1, 2, 3  
4
Function  
Not used  
Description  
Set to OFF  
OFF  
ON  
RS-485  
TERM  
ON for RS-485 Line Termination with 120W;  
OFF for no RS-485 Line Termination  
1
2
3
4
Figure 12: Default  
Dipswitch Settings  
1 But not other VP-23RC machines  
2 By default, all dipswitches are set to OFF  
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Controlling the VP-23RC  
VP-23RC  
Machine # 2  
VP-8x8A  
Machine # 3  
VP-8x8A  
Figure 13: Control Configuration via RS-232 and RS-485  
8.3 Controlling via the ETHERNET  
You can control the VP-23RC via the Ethernet as well as configure the  
Media/Room Controller buttons and the Presentation Switcher SELECTOR  
buttons1.  
1 Done by the system integrator, see section 9.2  
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Controlling the VP-23RC  
Before using the VP-23RC via a network hub or network router, make sure that:  
ñ
The IP number of the machine is defined on the network subnet and that  
its number is unique in the local network  
ñ
A Firewall is not preventing access to the device  
If you need further assistance, contact your system integrator.  
8.3.1  
Connecting the ETHERNET Port directly to a PC (Crossover Cable)  
You can connect the Ethernet port of the VP-23RC 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 VP-23RC and for the initial configuration (see section 9.2)  
8.3.2  
Configuring Your PC  
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 14).  
Figure 14: Local Area Connection Properties Window  
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Controlling the VP-23RC  
6. Select Use the following IP Address, and fill in the details as shown in  
Figure 15.  
7. Click OK.  
Figure 15: Internet Protocol (TCP/IP) Properties Window  
Remember to restore your previous PC settings after setting the VP-23RC IP  
If the Media/Room Controller is not yet configured you can control via the  
Ethernet, the Presentation Switcher section only.  
8.3.3  
Connecting the ETHERNET Port via a Network Hub (Straight-Through  
Cable)  
After initially configuring the ETHERNET port, you can connect the Ethernet  
port of the VP-23RC to the Ethernet port on a network hub or network router,  
via a straight-through cable with RJ-45 connectors.  
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Operating Your VP-23RC  
9 Operating Your VP-23RC  
This section describes the:  
ñ
ñ
ñ
ñ
Front panel buttons (see section 9.1)  
VP-23RC button configuration (see section 9.2)  
Media/Room Control section operation (see section 9.3)  
Presentation Switcher section operation (see section 9.4)  
9.1 The Front Panel Buttons  
The front panel buttons include the:  
ñ
ñ
ñ
ñ
ñ
MEDIA / ROOM CONTROL buttons1 (1 to 8)  
VIDEO (CV)-AUDIO SELECTOR buttons1 (1 to 4)  
S-VIDEO (Y/C)-AUDIO SELECTOR buttons1 (1 to 4)  
VGA/UXGA-AUDIO SELECTOR buttons1 (1 to 4)  
MASTER AUDIO SELECTOR buttons1 (CV, S-VIDEO, VGA/UXGA  
and MIC)  
ñ
ñ
ñ
TALK OVER button2, which lowers or mutes the MASTER AUDIO  
LEVEL when the microphone picks up speech3  
MIC AUDIO LEVEL up and down buttons to adjust the level at the  
master audio out4 connectors5 and the talk-over function threshold6  
MASTER AUDIO LEVEL up and down buttons to adjust the audio  
output level at the master audio out connectors4, without influencing any  
other audio output  
ñ
Panel LOCK button to lock the front panel buttons  
By default7, the stereo audio signals switch together with the video, that is, the  
unit is set in audio-follow-video8 (AFV) mode. You can change to breakaway  
mode9, via the RS-232 port in the SWITCHER CONTROL area  
1 Which can be programmed to execute a sequence of up to 15 commands per button (see section 9.4.3)  
2 Two channels are active in the Talk Over mode, a source selected via the MASTER AUDIO SELECTOR buttons and the  
microphone channel  
3 Adjust the microphone level via the MIC AUDIO LEVEL + and - buttons  
4 MASTER OUT and SPKR OUT  
5 Useful in the TALK OVER mode, when the microphone level needs to be adjusted separately  
6 Achieving optimum results for a particular environment when using a microphone may require experimentation in adjusting  
the AUDIO and MIC LEVELS  
7 This is, the pre-installed factory default. The default can be modified via the Windows®-based Kramer control software  
8 In which all operations relate to both the video and the audio channels  
9 In which video and audio channels switch independently  
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Operating Your VP-23RC  
Pressing an illuminated AUDIO SELECTOR button for more than 2 seconds  
disconnects that master audio output, and the button no longer illuminates.  
The video will continue to display but without sound.  
The Master Audio automatically follows the last input selected (for example,  
VGA/UXGA), regardless of the switcher group (VGA, s-Video, or composite  
video), and the respective button1 under the MASTER AUDIO SELECTOR  
section illuminates, indicating that the selected input (for example,  
VGA/UXGA) is routed to the master outputs.  
9.2 Configuration of the VP-23RC  
The Media/Room Controller section and the Presentation Switcher SELECTOR  
buttons are configured by the system integrator. For further details, refer to the  
Kramer RC configuration and Installation Guide PDF file, located in the  
9.3 Media / Room Controller Section Operation  
The Media/Room Controller section is easy-to-use, as the example in Figure  
16 and Table 9 describes2:  
1 Replacing the previous illuminated button  
2 This example describes how to setup one of an unlimited number of available setups for the system  
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Operating Your VP-23RC  
Projector  
Lift  
Projector  
Blinds  
s-Video  
Player  
INTERNET  
Screen  
Composite  
Video Player  
Lighting  
System  
Figure 16: Example of a Typical Media/Room Controller Section Configuration  
Table 9: Connection Scheme (for the example in Figure 16)  
This connector:  
Controls:  
RELAY 1  
RELAY 2  
RELAY 3  
RELAY 4  
IR 1 PIN1  
IR 2 PIN1  
IR 3 PIN  
The blinds  
The lighting system  
Projector lift motor  
The screen settings motor  
A composite video player  
An s-Video player  
Not connected in this example  
(1) A projector; (2) an LCD2  
The VP-23RC via a remote control PC  
RS-232 Terminal Block Connector (1 and 2)  
Ethernet  
1 Connected via the IR emitter  
2 Alternatively, the second RS-232 port can be used to control another A/V unit  
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Operating Your VP-23RC  
Figure 17 shows a common setup for the VP-23RC in a media room. An  
overhead projector and screen, speakers, lights; and a cabinet with a DVD and a  
VCR inside, are all controlled via the VP-23RC. The presenter’s laptop is located  
on the podium (also connected to the VP-23RC), alongside the VP-23RC.  
VCR  
DVD  
Figure 17: Example of a Typical Setup in the Lecture Auditorium  
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Operating Your VP-23RC  
9.3.1  
Operating the Media / Room Controller  
In the following example1, illustrated in Figure 18, the VP-23RC is labeled2  
with specific functions and each button is programmed3 to perform several  
tasks4 as defined in Table 10.  
Each button may be assigned with up to 15 commands.  
Table 10: The Commands Configuration  
Button  
The Macro Sequence  
Power up the projector  
Power up the DVD player  
Power up the video player  
Roll down the projector screen  
1
ñ
ñ
ñ
ñ
ñ
Vol  
UP  
DVD  
Help  
ON  
PC  
OFF  
VCR  
Lower down the projector  
from the ceiling  
ñ
1 minute delay [for the  
projector to heat up]  
Vol  
ñ
ñ
ñ
ñ
Turn lights off  
Close blinds  
30 second delay for blinds to close  
The projector selects the PC input  
DOWN  
Figure 18: Labels Setup  
2
ñ
ñ
ñ
ñ
ñ
ñ
ñ
ñ
ñ
ñ
Open blinds  
Turn lights on  
30 second delay for blinds to open  
Power down the projector  
Lift the projector up to the ceiling  
Stop the DVD player  
Power down the DVD player  
Stop the video player  
Power down the video player  
Roll up the projector screen  
3
ñ
ñ
ñ
Stop the video player  
The projector selects the DVD input  
Play the DVD  
4
5
ñ
Audio level up  
ñ
ñ
ñ
Stop the DVD  
Stop the VCR  
The projector selects a PC input  
6
ñ
ñ
ñ
Stop the DVD  
The projector selects the VCR input  
Play the VCR  
7
8
ñ
ñ
Signals for technical assistance  
Audio level down  
1 This is only one example among numerous possibilities, each button can be configured as required  
2 To insert labels, refer to the Kramer RC configuration and Installation Guide PDF file, located in the technical support  
3 By the system integrator  
4 A macro sequence, including up to 15 commands per button, carried out one after the other  
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Operating Your VP-23RC  
9.3.2  
An Example of Operating the VP-23RC  
Figure 19 shows an operating example:  
VCR  
DVD  
ON  
DVD  
Vol  
UP  
Vol  
DOWN  
PC  
VCR  
PC  
OFF  
Figure 19: VP-23RC Operation Example  
Using the Media / Room Controller Macro Buttons  
9.3.3  
Pressing any button initiates a macro sequence1, during which the button  
blinks (as programmed by the system integrator).  
If during the macro sequence the button blinks faster than usual2, this indicates  
that a malfunction has been detected3 and if the problem is critical, the VP-23RC  
exits the macro sequence4.  
To solve the problem, summon technical help5  
1 The macro sequence can be carried out instantly or can take a while, depending on the delay times included in the sequence  
2 Six times per second, as compared with twice per second during normal operation  
3 For example, a faulty DVD player  
4 This procedure and others are set by the system integrator  
5 In this example, press the HELP DESK button  
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Operating Your VP-23RC  
If you want to stop a macro sequence, press and hold that button for 5  
seconds. The sequence will come to an end. You can resume operation by  
pressing any button1. The unit will carry out the macro sequence commands  
from the beginning.  
9.3.4  
Turning the Light of the Backlit Buttons On and Off  
When the room is darkened, the buttons can be illuminated for convenience.  
To turn on the backlight, press buttons 3 and 7 simultaneously  
To turn off the backlight, press the respective buttons once again.  
9.4 The Presentation Switcher Section Operation  
The Presentation Switcher section has two operation modes:  
ñ
ñ
The Independent Switchers mode (see section 9.4.1)  
The Master Audio mode (see section 9.4.2)  
In both operation modes, if configured, the SELECTOR buttons, once  
pressed, execute a sequence of configured commands (see section 9.4.3).  
9.4.1  
The Independent Switchers Mode  
In the independent switchers mode, the three switchers of the VP-23RC operate  
independently from each other, as illustrated in Figure 20 (the Media/Room  
Controller connections are not shown in this illustration). You can route one of  
the 4 CV inputs, one of the 4 Y/C inputs and one of the 4 VGA/UXGA inputs to  
the corresponding CV, Y/C and UXGA2 outputs, respectively.  
To switch an input to an output3:  
ñ
ñ
ñ
Press one4 button from the set of four buttons in the VIDEO  
(CV)-AUDIO SELECTOR section and/or5  
One button from the set of four buttons in the s-VIDEO (Y/C)-AUDIO  
SELECTOR section and/or5  
One button from the set of four buttons in the VGA/UXGA-Audio  
SELECTOR section  
1 Including the button you kept pressed to stop the macro sequence  
2 And to the UXGA CAT5 OUT connector (audio excluded)  
3 Assuming that all inputs are connected  
4 You cannot select more than one button in a section  
5 You can overlook a section and choose not to select a button from it  
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Operating Your VP-23RC  
Each pressed button illuminates1, indicating selection and outputting of that  
video and audio source.  
If a button includes a macro sequence, it will be executed when pressing that  
button.  
S-VHS  
S-VHS  
UXGA Acceptor  
S-VHS  
Speakers  
UXGA Sources  
S-VHS  
CV Video Sources  
CV Video Acceptor  
s-Video Sources  
S-VHS  
s-Video Acceptor  
Figure 20: Separate Switcher Mode  
The Master Audio Mode  
9.4.2  
In the master audio mode, you can route an audio input signal from any of the  
A/V switchers or from the microphone, to the MASTER OUT and/or SPKR  
OUT outputs.  
Figure 21 shows a plasma-display connected to the VP-23RC unit via the  
UXGA OUT HD15F connector, and a pair of speakers connected to the SPKR  
OUT terminal block connector (the Media/Room Controller connections are  
not shown in this illustration).  
If a button includes a macro sequence, it will be executed when pressing that  
button.  
1 Pressing an illuminated button for more than 2 seconds will disconnect the output and the button will no longer illuminate  
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Operating Your VP-23RC  
(I) When pressing button 2 under the VGA/UXGA-AUDIO SELECTOR, the  
UXGA IN 2 signal is routed to the display1. The VGA/UXGA button under  
the MASTER AUDIO SELECTOR section automatically illuminates, and the  
UXGA audio signal is routed to the SPKR OUT2 and the MASTER OUT2  
terminal block connectors simultaneously3.  
(II) After connecting a microphone to the MIC IN XLR connector, the MIC  
button under the MASTER AUDIO SELECTOR section illuminates and the  
speakers output the MIC IN4 audio signal, while retaining the UXGA display.  
You can return to the UXGA audio output by pressing the VGA/UXGA  
button under the MASTER AUDIO SELECTOR section once again.  
I
II  
I
Presenter’s  
Microphone  
II  
UXGA Source  
Speaker  
Speaker  
Display  
Figure 21: Switching in the Master Audio Mode  
1 The UXGA output is simultaneously routed to the UXGA CAT 5 OUT connector  
2 The MASTER audio signal is routed simultaneously to the SPKR OUT and the MASTER OUT channels. The only  
difference between them is that the SPKR OUT channel has an internal power amplifier, which lets you connect the speakers  
directly to the unit  
3 As well as to the AUDIO UXGA OUT terminal block connector, which is not connected in this example  
4 Another way to use the microphone is to press the TALK OVER button: the main audio level is lowered when the  
microphone picks up speech  
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Operating Your VP-23RC  
9.4.3  
The Presentation Switcher SELECTOR Buttons Macro Sequence  
The SELECTOR buttons can be configured to execute a sequence of  
commands (a macro) in a similar way to the Media / Room Controller buttons  
(see section 9.3.1) so that when a SELECTOR button is pressed, it will first  
perform the switching action and concurrently carry out the macro. The  
example in Figure 22 illustrates a macro sequence that can be programmed to  
a Presentation Switcher SELECTOR button.  
Figure 22: Presentation Switcher Macro Sequence Example  
Note that you cannot stop a macro on the presentation switcher SELECTOR  
buttons once it is in process  
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Flash Memory Upgrade  
10 Flash Memory Upgrade  
The firmware is upgraded separately for the Presentation Switcher section (see  
section 10.1) and for the Media/Room Controller section (see section 10.2).  
10.1  
Flash Memory Upgrade for the Presentation Switcher Section  
The VP-23RC firmware for the Presentation Switcher section is located in  
FLASH memory, which lets you upgrade to the latest Kramer firmware  
version in minutes! The process involves:  
ñ
ñ
ñ
Downloading from the Internet (see section 10.1.1)  
Connecting the PC to the RS-232 port (see section 10.1.2)  
Upgrading Firmware (see section 10.1.3)  
10.1.1 Downloading from the Internet  
You can download the up-to-date file1 from the Internet. To do so:  
file: “FLIP_VP23RC.zip” from the Technical Support section.  
2. Extract the file: “FLIP_VP23RC.zip” to a folder (for example, C:\Program  
Files\Kramer Flash).  
3. Create a shortcut on your desktop to the file: “FLIP.EXE”.  
10.1.2 Connecting the PC to the RS-232 Port  
Before installing the latest Kramer firmware version on a VP-23RC unit, do  
the following:  
1. Connect the RS-232 DB9 rear panel port in the SWITCHER CONTROL area  
to the Null-modem adapter via a 9-wire flat cable, and connect the Null-  
modem adapter to the RS-232 DB9 port on your PC (as in section 8.1.1).  
2. On the rear panel, push in the FLASH PROG. button (to program), using a  
screwdriver.  
3. Connect the power on the VP-23RC unit and switch it ON.  
4. On the underside panel, push in the RESET button (see Figure 4), using a  
screwdriver.  
1 The files indicated in this section are given as an example only. These file names are liable to change from time to time  
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Flash Memory Upgrade  
10.1.3 Upgrading the Firmware  
Follow these steps to upgrade the firmware for the Presentation Switcher  
section:  
1. Double click the desktop icon: “Shortcut to FLIP.EXE”.  
The Splash screen appears as follows:  
Figure 23: Splash Screen  
2. After a few seconds, the Splash screen is replaced by the “Atmel – Flip”  
window:  
Figure 24: Atmel – Flip Window  
3. Press the keyboard shortcut key F2 (or select the “Select” command from the  
Device menu, or press the integrated circuit icon in the upper right corner of the  
window).  
The “Device Selection” window appears:  
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Flash Memory Upgrade  
Figure 25: Device Selection Window  
4. Click the button next to the name of the device and select from the list:  
AT89C51RD2:  
AT89C51RD2  
T89C51RD2  
Figure 26: Selecting the Device from the Selection Window  
5. Click OK and select “Load Hex” from the File menu.  
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Flash Memory Upgrade  
A
Figure 27: Loading the Hex  
6. The Open File window opens. Select the correct HEX file that contains the  
updated version of the firmware for VP-23RC (for example,  
23RCM_V1p2.hex) and click Open.  
7. Press the keyboard shortcut key F3 (or select the “Communication / RS232”  
command from the Settings menu, or press the keys: Alt SCR).  
The “RS232” window appears. Change the COM port according to the  
configuration of your computer and select the 9600 baud rate:  
Figure 28: RS-232 Window  
8. Click Connect.  
In the “Atmel – Flip” window, in the Operations Flow column, the Run button  
is active, and the name of the chip appears as the name of the third column:  
AT89C51RD2.  
Verify that in the Buffer Information column, the “HEX File: VP23RC.hex”  
appears.  
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Flash Memory Upgrade  
A
VP23RC.hex  
Figure 29: Atmel – Flip Window (Connected)  
9. Click Run.  
After each stage of the operation is completed, the check-box for that stage  
becomes colored green1.  
When the operation is completed, all 4 check-boxes will be colored green and  
the status bar message: Memory Verify Pass appears2:  
A
VP23RC.hex  
Figure 30: Atmel – Flip Window (Operation Completed)  
10. Close the “Atmel – Flip” window.  
11. Disconnect the power on the VP-23RC.  
1 See also the blue progress indicator on the status bar  
2 If an error message: “Not Finished” shows, click Run again  
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Flash Memory Upgrade  
12. Disconnect the RS-232 rear panel port on the VP-23RC unit from the  
Null-modem adapter.  
13. Release the FLASH PROG button on rear panel.  
14. Connect the power to the VP-23RC.  
10.2  
Flash Memory Upgrade for the Media / Room Controller Section  
The VP-23RC Media/Room control firmware is located in FLASH memory,  
which lets you upgrade to the latest Kramer firmware version in minutes!  
The process involves:  
ñ
ñ
ñ
ñ
Downloading the upgrade package from the Internet  
Connecting the PC to the RS-232 port 1 in the CONTROLLER area  
Upgrading the firmware  
Installing the Web Applet  
10.2.1 Downloading from the Internet  
You can download the up-to-date file1 from the Internet. To do so:  
file: “RC_vp23rc_xx.zip” from the technical support section.  
2. Extract the file “RC_vp23rc_xx.zip ” package, which includes the  
KFR-Programmer application setup and the .s19 firmware file, to a folder (for  
example, C:\Program Files\KFR Upgrade).  
3. Install the KFR-Programmer Application.  
10.2.2 Connecting the PC to the RS-232 Port  
Before installing the latest Kramer firmware version on the VP-23RC, do the  
following:  
1. Connect the RS-232 Terminal Block Connector rear panel port 1 in the  
CONTROLLER area to the Null-modem adapter via a 3-wire split cable, and  
connect the Null-modem adapter to the RS-232 9-pin D-sub port on your PC.  
2. Set DIP 1 on the PROGRAM dipswitches located in the CONTROLLER area  
ON.  
3. Connect the power on your machine.  
1 File names are liable to change from time to time  
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Flash Memory Upgrade  
10.2.3 Upgrading Firmware  
Follow these steps to upgrade the firmware:  
1. Double click the KFR-Programmer desktop icon.  
The KFR-Programmer window appears (see Figure 31).  
Figure 31: The KFR-Programmer Window  
2. Select the required COM Port1.  
3. Press the File button to select the .s19 firmware file included in the package.  
4. Press the Send button to download the file. The Send button lights red.  
5. Wait until downloading is completed and the red Send button turns off.  
6. Set DIP 1 on the PROGRAM dipswitches located in the CONTROLLER area  
OFF.  
10.2.4 Installing the Web Applet2  
Follow these steps to install the Web Applet:  
1. Connect RC device to your PC through computer networking.  
2. Start RC Configuration Software and connect to the RC device (see RC  
Configuration and Installation Guide).  
3. In the Device menu select Upgrade Applet option and browse to MC.dat file  
included in the package  
Wait until uploading is completed and the success message appears. Click  
OK.  
1 To which the VP-23RC is connected on your PC  
2 This section is applicable only to firmware version 26.0 and higher and requires RC Configuration Software version  
1.26.0.38 and higher  
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Flash Memory Upgrade  
10.3  
Troubleshooting Firmware Upgrade Issues  
If the RC device does not communicate and it is impossible to perform the  
flash upgrade procedure, the problem may sometimes be solved by performing  
the factory default restore procedure.  
To restore the factory default settings, do the following:  
1. Turn off the VP-23RC unit.  
2. In the CONTROLLER area of the rear panel, set DIP-switch 3 ON for factory  
reset.  
3. Turn on the machine.  
4. Wait for about 5 seconds (factory default is now complete, but the machine has  
to be restarted to function properly).  
5. Turn off the machine.  
6. Turn off the factory default DIP-switch.  
7. Turn on the machine.  
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Technical Specifications  
11 Technical Specifications  
Table 11 includes the technical specifications1:  
Table 11: Technical Specifications of the VP-23RC Presentation Switcher / Controller  
PORTS (CONTROLLER):  
2 RS-232 on a terminal block connector and a DB 9M; 1 ETHERNET  
RJ-45 port  
INPUTS:  
4 VGA / XGA on 15-pin HD connectors  
4 s-Video, 1 Vpp (Y), 0.3Vpp (C) / 75 W on 4 pin connectors  
4 composite video 1Vpp / 75 W on BNC connectors  
Each input is accompanied by the appropriate balanced stereo-audio  
channels: +4dBm / 50 kW on detachable terminal block connectors  
Mic: 3mV / 10 kW condenser / dynamic on an XLR connector  
IR learner  
OUTPUTS:  
1 x VGA / XGA on a 15-pin HD connector  
1 s-Video - 1 Vpp (Y), 0.3Vpp (C), / 75 W on 4 pin connector  
1 composite video 1 Vpp / 75 W on a BNC connector  
1 STP CAT5 connector (Line OUT)  
Each output is accompanied by the appropriate balanced stereo-audio  
channel: +4dBm / 150 W on detachable terminal blocks  
1 master stereo audio +4dBm / 150 W on a detachable 4-pin terminal block  
1 stereo speaker output 2x5W continuous into 4W  
4 relays on terminal block connectors (36V AC or DC, 2A, 60VAC  
maximum on non-inductive load)  
3 IR emitters on terminal block connectors  
MAX. OUTPUT LEVEL:  
BANDWIDTH (-3dB):  
VIDEO: YC: 1.8Vpp; CV: 1.8Vpp  
XGA: 1.7Vpp; CAT 5: 1.3Vpp  
VIDEO: YC: 385MHz; CV: 650MHz  
XGA: 350MHz; CAT 5: 158MHz  
AUDIO: Group: 20dBm  
Master: 15dBm  
AUDIO: Group: 46kHz  
Speakers: 40kHz; Master: 33kHz  
DIFF. GAIN:  
DIFF. PHASE:  
K-FACTOR:  
S/N RATIO:  
YC: 0.03%; CV: 0.03%; CAT 5: 6.4%; XGA: 0.15%  
YC: 0.03 Deg.; CV: 0.03 Deg.; CAT 5: 0.2 Deg.; XGA: 0.09 Deg.  
<0.1%  
VIDEO: YC: 81dB; CV: 75dB  
CAT 5: 59dB; XGA: 75dB  
(unweighted)  
AUDIO: Group: 74dB  
Speakers: 53dB (max pwr weighted)  
Master out: 72dB  
CROSSTALK (all hostile):  
CONTROLS:  
VIDEO: -49dB @5MHZ  
AUDIO: Group: < -76dB  
Master: < -69dB @1kHz  
Channel selector for video and audio, for YC, CV and XGA; master audio  
output selector, audio level, talkover, lock, RS-232, RS-485, and Ethernet  
COUPLING:  
VIDEO: YC, CV and XGA: DC  
AUDIO: AC, input and output  
AUDIO THD + NOISE@1kHZ: Group: 0.08%; Speakers: 2% (max pwr); Master: 0.25%  
AUDIO 2nd HARMONIC:  
POWER SOURCE:  
DIMENSIONS:  
Group: 0.065%; Speakers: 1.6% (max pwr); Master: 0.155%  
230VAC, 50/60Hz (115VAC, USA) 35VA  
19-inch (W), 7-inch (D) 2U (H) rack-mountable  
3.8 kg (8.4 lbs.) approx.  
WEIGHT:  
ACCESSORIES:  
3.5mm to IR Emitter Control Cable (C-A35/IRE-10); power cord, infra-red  
remote control transmitter, Java based control software (internal),  
Windows®-based Kramer control software  
OPTIONS:  
3.5mm to IR Emitter Control Cable (C-A35/IRE-10); 15 meter and 20 meter  
IR Emitter Extension Cables  
1 Specifications are subject to change without notice  
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Hex Table  
12 Hex Table  
Table 12 lists the Hex values (which the protocol in section 13 describes in  
more detail) for the VP-23RC Presentation Switcher section:  
Table 12: VP-23RC Hex Table  
Inputs  
Group  
Composite Video  
OUT and Audio  
OUT CV  
s-Video OUT and  
Audio OUT s-Video  
VGA OUT and  
Audio OUT VGA  
#
In 1  
01 81 81 81  
01 82 81 81  
01 83 81 81  
01 84 81 81  
In 2  
In 3  
In 4  
In 1  
In 2  
In 3  
In 4  
In 1  
In 2  
In 3  
In 4  
01 81 82 81  
01 82 82 81  
01 83 82 81  
01 84 82 81  
01 81 83 81  
01 82 83 81  
01 83 83 81  
01 84 83 81  
Table 13: VP-23RC Master Audio Selector Hex Table  
Master Audio Selector (Group Audio OUT)  
Composite Video Audio OUT  
s-Video Audio OUT  
VGA Audio OUT  
Microphone  
Audio Master OUT  
02 81 81 81  
02 82 81 81  
02 83 81 81  
02 84 81 81  
02 80 81 81  
Disconnect All  
12.1  
Audio Gain Control Hex Tables  
The following tables describe the audio gain controls.  
Table 14: Set the Audio Output Gain Control for the Groups  
Audio Gain Control for Groups  
Composite Video  
s-Video  
VGA  
Notes  
16 81 80 81  
16 82 80 81  
16 83 80 81  
Mute  
16 81 EC 81  
16 81 FF 81  
16 82 EC 81  
16 82 FF 81  
16 83 EC 81  
16 83 FF 81  
0dB (1:1)  
9dB  
Table 15: Set the Audio Output Gain Control for the Microphone  
Audio Gain Control for Microphone  
16 84 80 81  
16 84 CD 81  
16 84 FF 81  
Mute  
Maximum  
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Hex Table  
Table 16: Set the Audio Output Gain Control for the Master Audio  
Audio Gain Control for Master Out  
16 85 80 81  
16 85 F9 81  
16 85 FF 81  
Mute  
0dB  
3dB  
Table 17: Increase or Decrease the Audio Output Gain by One Step  
Composite  
Video  
s-Video  
VGA  
Microphone  
Master Out  
18 81 80 81  
18 82 80 81  
18 82 81 81  
18 83 80 81  
18 83 81 81  
18 84 80 81  
18 84 81 81  
18 85 80 81  
18 85 81 81  
Increase  
18 81 81 81  
Decrease  
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Communication Protocol  
13 Communication Protocol  
This protocol, which enables RS-232 communication between the VP-23RC  
and the PC, uses 4 bytes of information, and data is at 9600 baud, no parity, 8  
data bits and 1 stop bit.  
Table 18: Protocol Definitions  
MSB  
LSB  
DESTINATION  
INSTRUCTION  
0
7
D
6
N5  
5
N4  
4
N3  
3
N2  
2
N1  
1
N0  
0
1st byte  
INPUT  
1
7
0
6
0
5
0
4
0
3
I2  
2
I1  
1
I0  
0
2nd byte  
OUTPUT  
1
7
0
6
0
5
0
4
0
3
0
2
O1  
1
O0  
0
3rd byte  
MACHINE NUMBER  
1
7
0
6
0
5
0
4
M3  
3
M2  
2
M1  
1
M0  
0
4th byte  
1st BYTE:  
Bit 7 – Defined as 0.  
D – “DESTINATION BIT”.  
This bit is always low, when sending from the PC to the switchers, and high for information sent  
to the PC.  
N5…N0 – “ INSTRUCTION”.  
These 6 bits define the function that is to be performed by the switcher(s). 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.  
Bits 3 – 6 - Defined as 0.  
I2… I0 – “ INPUT”.  
For disconnect, set as 0. For other operations, these bits are defined according to Table 19.  
3rd BYTE:  
Bit 7 – defined as 1.  
Bits 2-6 defined as 0.  
O1, O0 – “OUTPUT”  
For operations, these bits are defined according to Table 19.  
4th BYTE:  
Bit 7 – Defined as 1.  
Bits 3-6 Defined as 0.  
M3… M0 – “MACHINE NUMBER”.  
MACHINE NUMBER = (DIPSWITCH CODE) + 1.  
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Communication Protocol  
Table 19: Instruction Codes  
INSTRUCTION  
DESCRIPTION  
RESET MACHINE  
SWITCH GROUPS  
DEFINITION FOR SPECIFIC INSTRUCTION  
INPUT OUTPUT  
NOTE  
#
0
1
0
0
1
2
1-4 Set equal to video and audio  
inputs to be switched for the  
relative group  
1-5* Set equal to audio output to  
be switched to Master Audio out  
0
1-3 Set equal to group to  
which output is to be  
switched  
1
2
5
SWITCH AUDIO OUTPUTS  
REQUEST GROUP STATUS  
2
3
3
2
3
4
1-3 Set equal to the group of  
which status is required  
1
6
REQUEST STATUS OF  
MASTER AUDIO OUTPUT  
BREAKAWAY SETTING  
0
8
0
0 – Audio-follow-video  
1 – Audio breakaway  
0
11  
16  
REQUEST BREAKAWAY  
SETTING  
ERROR  
0
Don’t care  
0 – Invalid instruction  
1 – Out of range  
0
18  
22  
RESET MACHINE  
SET AUDIO GAIN OF AUDIO  
OUTPUT  
0
1-5*  
1
7
Gain value  
24  
25  
30  
31  
INCREASE/DECREASE AUDIO 1-5*  
0 – Increase gain  
1 – Decrease gain  
0 – Video gain  
1 – Audio gain  
0
8
GAIN  
REQUEST GAIN  
1-5*  
3, 9  
LOCK FRONT PANEL  
0 – Panel unlocked  
1 – Panel locked  
0
REQUEST WHETHER PANEL  
IS LOCKED  
0
3
44  
45  
MEDIA CONTROL  
REQUEST MEDIA CONTROL  
SETTINGS  
Set equal to switch number  
Set equal to switch number  
Switch data  
0
57  
61  
SET AUTO SAVE  
1 – Autosave  
Don’t care  
5
6
2 – No save  
IDENTIFY MACHINE  
1 or 2 – Machine name  
3 or 4 – Program version  
0 – request first 4 digits  
1 – request first suffix  
10 – request first prefix  
1 – For video  
62  
DEFINE MACHINE  
1 – Number of inputs  
2 – Number of outputs  
3
2 – For audio  
* 1 – for CV group, 2 – for SV group, 3 – for VGA group, 4 – for microphone, 5 – for master audio out  
NOTES on to Table 19:  
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:  
0000 0001 Instruction “ Switch Groups”  
1000 0010 Input #2  
1000 1001 in composite video group  
1000 0001 Machine #1 (master)  
Was sent from the PC, then the switcher (machine #1) will switch input 2 in composite video group to its output. If the user  
switched input 4 in the VGA group via the front panel keypad, then the switcher will send:  
0100 0001  
1000 0100  
1000 0011  
1000 0001 to the PC.  
When the PC sends instruction #1 or #2 to the switcher, then, if the instruction is valid, the switcher replies by sending the  
same four bytes to the PC that were sent (except for the first byte, where the DESTINATION bit is set high).  
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Communication Protocol  
NOTE 3  
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 to the value of the requested parameter. The reply to the instruction #5 (what is the status of the VGA  
group?):  
0000 0101  
1000 0000  
1000 0011  
1000 0001  
Would be:  
0100 0101  
1000 0000  
1000 0100  
1000 0001  
NOTE 4  
An error code is returned to the PC if an invalid code was sent to the switcher (for example, when trying to switch an input or  
a group which is greater than the highest one defined). 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 will not be valid.  
NOTE 5  
Under normal conditions, the machine’ s present status is saved each time a change is made. The power-down save (the auto  
save) may be disabled using this code. Note that each time that the machine is turned ON, the auto save function is  
automatically set.  
NOTE 6  
This is a request to identify the switchers in a system. If the INPUT is set as 1 or 2, the machine will send its name. The reply  
is the decimal value of the INPUT and the OUTPUT. For example, the reply to the request to send the machine’ s name (for  
machine #001) will be:  
0111 1101  
1000 0000 (i.e. 128+0)  
1001 0111 (i.e. 128+23)  
1000 0001  
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 following the decimal point. For example, for version  
3.5 the reply will be:  
0111 1101  
1000 0011 (i.e. 128+3)  
1000 0101 (i.e. 128+5)  
1000 0001  
NOTE 7  
GAIN VALUE – Number from 0 to 127  
NOTE 8  
Answer = Current Audio Gain (0 –127)  
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LIMITED WARRANTY  
Kramer Electronics (hereafter Kramer) warrants this product free from defects in material and workmanship under the  
followingterms.  
HOW LONGIS THE WARRANTY  
Labor and parts are warranted for seven years from the date of the first customer purchase.  
WHOIS PROTECTED?  
Only the first purchase customer may enforce this warranty.  
WHAT ISCOVEREDANDWHAT ISNOT COVERED  
Except as below, this warranty covers all defects in material or workmanship in this product. The following are not covered  
by thewarranty:  
1. Any product which is not distributed by Kramer, or which is not purchased from an authorized Kramer dealer. If you are  
uncertain as to whether a dealer is authorized, please contact Kramer at one of the agents listed in the Web site  
2. Any product, on which the serial number has been defaced, modified or removed, or on which the WARRANTY VOID  
IF TAMPERED sticker has been torn, reattached, removed or otherwise interfered with.  
3. Damage, deterioration ormalfunctionresultingfrom:  
i) Accident, misuse, abuse, neglect, fire, water, lightning orotheractsofnature  
ii) Product modification, orfailureto followinstructionssupplied with theproduct  
iii) Repairorattemptedrepairby anyonenotauthorized byKramer  
iv) Anyshipmentofthe product(claims must bepresentedtothe carrier)  
v) Removalorinstallationoftheproduct  
vi) Anyothercause,whichdoes not relateto a product defect  
vii) Cartons,equipment enclosures, cables or accessoriesusedinconjunctionwiththe product  
WHAT WE WILLPAYFORAND WHAT WE WILLNOT PAYFOR  
Wewill pay laborand material expensesforcovered items.Wewill notpayforthefollowing:  
1. Removal orinstallationscharges.  
2. Costs of initial technical adjustments (set-up), including adjustment of user controls or programming. These costs are the  
responsibility oftheKramerdealerfromwhomthe product was purchased.  
3. Shipping charges.  
HOW YOU CAN GET WARRANTY SERVICE  
1. To obtain service on you product, you must take or ship it prepaid to any authorized Kramer service center.  
2. Whenever warranty service is required, the original dated invoice (or a copy) must be presented as proof of warranty  
coverage, and should be included in any shipment of the product. Please also include in any mailing a contact name,  
company, address, and a description of the problem(s).  
3. For the name of the nearest Kramer authorized service center, consult your authorized dealer.  
LIMITATION OFIMPLIED WARRANTIES  
All implied warranties, including warranties of merchantability and fitness for a particular purpose, are limited in duration to  
the length of this warranty.  
EXCLUSIONOFDAMAGES  
The liability of Kramer for any effective productsis limited to the repair or replacement of the product at our option. Kramer shall  
notbeliable for:  
1. Damage to otherproperty caused by defectsinthisproduct, damagesbasedupon inconvenience, lossofuseof theproduct, loss  
oftime, commercialloss;or:  
2. Any other damages, whether incidental,consequential or otherwise.Some countries may notallow limitations on how long an  
implied warranty lasts and/or do not allow the exclusion or limitation of incidental or consequential damages, so the above  
limitationsandexclusionsmaynot applytoyou.  
Thiswarranty givesyouspecificlegalrights, andyou may alsohaveotherrights, which varyfromplacetoplace.  
NOTE:Allproductsreturned to Kramerforservice must havepriorapproval.Thismay be obtained fromyourdealer.  
Thisequipment has been testedtodetermine compliancewith therequirements of:  
EN-50081:  
"Electromagneticcompatibility(EMC);  
genericemissionstandard.  
Part 1: Residential, commercial and lightindustry"  
"Electromagneticcompatibility(EMC)generic immunitystandard.  
Part 1: Residential, commercialand lightindustryenvironment".  
FCC* Rules and Regulations:  
EN-50082:  
CFR-47:  
Part 15: “Radio frequency devices  
Subpart B Unintentional radiators”  
CAUTION!  
Servicing the machines can only be done by an authorized Kramer technician. Any user who makes changes or  
modifications to the unit without the expressed approval of the manufacturer will void user authority to operate the  
equipment.  
Use thesuppliedDCpowersupply to feed power to themachine.  
Pleaseuserecommended interconnection cablestoconnect themachineto other components.  
* FCCand CEapproved using STPcable(fortwisted pairproducts)  
KRAMER: SIMPLE CREATIVE TECHNOLOGY  
52  
Download from Www.Somanuals.com. All Manuals Search And Download.  
For the latest information on our products and a list of Kramer  
where updates to this user manual may be found.  
We welcome your questions, comments and feedback.  
Safety Warning:  
Disconnect the unit from the power supply before  
opening/servicing.  
Caution  
Kramer Electronics, Ltd.  
P/N: 2900–000155 REV 5  
Download from Www.Somanuals.com. All Manuals Search And Download.  

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