Kramer VP-725DSA User manual

Kramer Electronics, Ltd.
USER MANUAL
Model:

VP-725DSA
Presentation Switcher / Scaler

Contents
i
Contents
1 Introduction 1
2 Getting Started 1
2.1 Quick Start 1
3 Overview 3
4 Your VP-725DSA Presentation Switcher / Scaler 5
5 Installing on a Rack 11
6 Connecting the VP-725DSA Presentation Switcher / Scaler 12
6.1 Connecting the MASTER OUT Terminal Block Connector 15
6.1.1 Using the MASTER OUT in the Master Audio Mode 15
6.1.2 Using the MASTER OUT in the Master AV Mode 15
6.2 The RGBS and RGsB PINOUTs 16
6.3 Connecting a PC 16
6.4 Connecting the VP-725DSA via the ETHERNET port 17
6.4.1 Connecting the ETHERNET Port directly to a PC (Crossover Cable) 17
6.4.2 Connecting the ETHERNET Port via a Network Hub (Straight-Through Cable) 19
6.5 Connecting the Balanced/Unbalanced Stereo Audio Input/Output 20
7 Understanding the Presentation Switcher / Scaler 21
7.1 Understanding the Video Group Mode/Scaler Mode 21
7.2 Understanding the Audio Group Mode/Master Audio Group Mode 21
7.3 Understanding the Audio Features 22
7.3.1 Choosing Audio-Follow-Video or Audio Breakaway 22
7.3.2 Adjusting the Audio Level 23
7.3.3 Using the Microphone CONTROL Modes 23
7.4 Understanding the PIP Button Feature 24
7.4.1 Activating the PIP Feature 24
7.4.2 PIP Characteristics 25
7.4.3 Toggling between the PIP and the Screen Source (SWAP) 25
7.4.4 Resizing the PIP 26
7.4.5 Moving the Position of the PIP 26
7.5 Locking and Unlocking the Front Panel 27
8 Operating the Presentation Switcher / Scaler 28
8.1 Switching an Input 28
8.1.1 Freezing the Image 28
8.1.2 Displaying a Blank Screen 29
8.2 Choosing the Output Resolution 30
9 Controlling the VP-725DSA Presentation Switcher / Scaler 31
9.1 Operating via the OSD MENU Screen 31
9.1.1 Controlling the Brightness and Contrast 32
9.1.2 Controlling the Gamma and Color 32
9.1.3 Selecting the Source 33

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Introduction
ii
9.1.4
Controlling the Geometry 36
9.1.4.1 Adjusting the Zoom Ratio 39
9.1.4.2 Adjusting the Zoom Position 39
9.1.5 Configuring via the Utility Screens 40
9.1.5.1 Choosing the Graphic Utility Settings 41
9.1.5.2 Choosing the Video Utility Settings 42
9.1.5.3 Choosing the Audio Utility Settings 43
9.1.5.4 Choosing the Audio Level Utility Settings 44
9.1.5.5 Choosing the PIP Utility Settings 45
9.1.5.6 Choosing the Seamless Switch Utility Settings 46
9.1.5.7 Choosing the OSD Utility Settings 47
9.1.5.8 Choosing the Output Utility Settings 48
9.1.5.9 Choosing Factory Reset 50
9.1.5.10 Choosing Advanced Utility Settings 51
9.1.6 Verifying Configuration Details via the Information Screen 52
9.2 Operating via the LCD Display 53
9.3 Operating via the Infra-red Remote Control Transmitter 53
9.4 Operating via ETHERNET/Serial Port 56
9.4.1 Installing and Running the Configuration Software 56
9.4.2 Configuring the Ethernet Connection 56
9.4.2.1 The Configuration Screen 56
9.4.3 Control the VP-725DSA via the Ethernet/Serial Port 58
10 Using Text Overlay 60
10.1 Downloading the TextOverlay Program 62
10.2 Setting the Text Message 62
10.2.1 Connecting and Disconnecting the TextOverlay Program 63
10.2.2 Saving and Loading Settings 64
11 Technical Specifications 65
12 VP-725DSA Communication Protocol 66
13 VP-725DSA Text Overlay Protocol 73
Figures
Figure 1: VP-725DSA Presentation Switcher / Scaler Front Panel 6
Figure 2: VP-725DSA Presentation Switcher / Scaler Rear Panel 9
Figure 3: Connecting the VP-725DSA Presentation Switcher / Scaler 14
Figure 4: Connecting the MASTER OUT (in Master Audio Mode) 15
Figure 5: Connecting the MASTER OUT (in Master AV Mode) 15
Figure 6: Connecting the PC 16
Figure 7: RJ-45 PINOUT 17
Figure 8: Local Area Connection Properties Window 18
Figure 9: Internet Protocol (TCP/IP) Properties Window 18
Figure 10: Connecting a Balanced Stereo Audio Input/Output 20
Figure 11: Connecting an Unbalanced Stereo Audio Input 20
Figure 12: Connecting an Unbalanced Stereo Audio Output 20
Figure 13: OSD PIP Status 25

Contents
iii
Figure 14: OSD SWAP Status 25
Figure 15: Locking / Unlocking the Front Panel 27
Figure 16: OSD Input Status 28
Figure 17: OSD Output Status 30
Figure 18: Controlling the Brightness and Contrast 31
Figure 19: Menu Screen Icons 32
Figure 20: Controlling the Gamma and Color 32
Figure 21: Gamma, Color Temperature/Manager User 1/2 Screen 33
Figure 22: Selecting the Source 33
Figure 23: Selecting the Search 34
Figure 24: Selecting the Group 35
Figure 25: Selecting the Source 35
Figure 26: Geometry Screen 36
Figure 27: Geometry (Aspect Ratio) Screen 37
Figure 28: Geometry (Zoom) Screen 37
Figure 29: OSD Enlarge Status 38
Figure 30: Zoom Ratio Adjustment Example 38
Figure 31: Zoom Position Adjustment Example 38
Figure 32: Geometry (Zoom Ratio) Screen 39
Figure 33: Geometry (Zoom Position Adjustment) Screen 40
Figure 34: Geometry (Keystone) Screen 40
Figure 35: Utility Screen 40
Figure 36: Choosing the Graphic Utility Settings 41
Figure 37: Graphic Setting Color Format Utility Screen 42
Figure 38: Choosing the Video Utility Settings 42
Figure 39: Video Setting Standard Utility Screen 42
Figure 40: Choosing the Audio Utility Settings 43
Figure 41: Choosing the Audio Level Settings 44
Figure 42: Choosing the PIP Utility Settings 45
Figure 43: Choosing the Seamless Switch Utility Settings 46
Figure 44: Choosing the OSD Utility Settings 47
Figure 45: OSD Size Utility Screen 47
Figure 46: OSD Blank Color Utility Screen 48
Figure 47: Choosing the Output Utility Settings 48
Figure 48: Output Setting Resolution Utility Screen 49
Figure 49: Output Setting Refresh Rate Utility Screen 49
Figure 50: Output Setting User Mode Setting Utility Screen 50
Figure 51: Factory Reset Utility Screen 50
Figure 52: Advanced Utility Screen 51
Figure 53: Information Screen 52
Figure 54: Example of how to use the LCD Display 53
Figure 55: Infra-red Remote Control Transmitter 54
Figure 56: VP725 Ethernet Application Main Dialog Box (Configuration Tab) 56
Figure 57: VP725 Ethernet Application Search Panel Screen 57
Figure 58: Configuration Tab 57
Figure 59: Setting an IP Number 58
Figure 60: VP725 Ethernet Application Main Dialog Box (Control Tab) 59
Figure 61: TextOverlay Application Screen 60

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Introduction
iv
Tables
Table 1: Front Panel VP-725DSA Presentation Switcher / Scaler Features 7
Table 2: Rear Panel VP-725DSA Presentation Switcher / Scaler Features 10
Table 3: RGBS and RGsB PINOUTS 16
Table 4: Crossover Cable RJ-45 PINOUT 17
Table 5: Straight-through Cable RJ-45 PINOUT 19
Table 6: Controlling the Brightness and Contrast 32
Table 7: Controlling the Gamma and Color 33
Table 8: Selecting the Source 34
Table 9: Controlling the Geometry 36
Table 10: Choosing the Graphic Utility Settings 41
Table 11: Choosing the Video Utility Settings 43
Table 12: Choosing the Audio Utility Settings 43
Table 13: Choosing the Audio Level Settings 44
Table 14: Choosing the PIP Utility Settings 45
Table 15: Choosing the Seamless Switch Utility Settings 46
Table 16: Choosing the OSD Utility Settings 47
Table 17: Choosing the Output Utility Settings 49
Table 18: User Mode Setting Definitions 50
Table 19: Advanced Utility Screen Features 51
Table 20: User Define Measure Features 51
Table 21: Infra-Red Remote Control Transmitter Functions 55
Table 22: VP725 Ethernet Application Configuration Tab 57
Table 23: Features and Functions of the TextOverlay Application 61
Table 24: Number of Buffers, Output Resolution and Maximum Display Height 62
Table 25: TextOverlay Parameters 63
Table 26: Technical Specifications of the VP-725DSA Presentation Switcher / Scaler 65
Table 27: Communication Protocol of the VP-725DS/VP-725DSA 66
Table 28: Text Overlay Protocol of the VP-725DSA 73

ADDENDUM: Ethernet Cross Cable Wiring Connection
P/N: 2900 - 9999993 A1
This addendum describes the correct wiring for crossover cable connections
and replaces the opening paragraph in the "Connecting the ETHERNET Port
directly to a PC (Crossover Cable)" section in the User Manual as follows:
Connecting the ETHERNET Port directly to a PC (Crossover Cable)
You can connect the Ethernet port of the machine to the Ethernet port on your
PC, via a crossover cable with RJ-45 connectors.
Table 1 and Figure 1 define the color codes for the two existing standard types
of cross cables used in the industry. Table 2 defines how to connect the wires
to the connectors on both ends of the cable.
When manually connecting the ends of a cable, both connectors must follow
the same standard (either EIA /TIA 568A or EIA /TIA 568B).
Table 1: Crossover Cable RJ-45 Types
EIA /TIA 568B EIA /TIA 568A
PIN Wire Color PIN Wire Color
1 White-orange 1 White-green
2 Orange 2 Green
3 White-green 3 White-orange
4 Blue 4 Blue
5 White-blue 5 White-blue
6 Green 6 Orange
7 White-brown 7 White-brown
8 Brown 8 Brown
1 8
TOP
FRONT
1 8
Figure 1: RJ-45 PINOUT
Table 2: Wiring between Connector One and Two of the Cable
Signal Pairs PINs on
Connector One
PINs on Connector
Two
Signal Pairs
TX_D1+ 1 3 RX_D2+
TX_D1- 2 6 RX_D2-
RX_D2+ 3 1 TX_D1+
RX_D2- 6 2 TX_D1-
BI_D3+ 4 7 BI_D4+
BI_D3- 5 8 BI_D4-
BI_D4+ 7 4 BI_D3+
BI_D4- 8 5 BI_D3-

Introduction
1
1 Introduction
Welcome to Kramer Electronics (since 1981): a world of unique, creative and
affordable solutions to the infinite range of problems that confront the video,
audio and presentation professional on a daily basis. In recent years, we have
redesigned and upgraded most of our line, making the best even better! Our
500-plus different models now appear in 8 Groups
1
, which are clearly defined
by function.
Congratulations on purchasing your Kramer VP-725DSA Presentation
Switcher / Scaler, which is ideal for the following typical applications:
 Projection systems (with full audio capability) in conference rooms, board
rooms, auditoriums, hotels, and churches
 Any application in which high quality conversion and switching of
multiple and different video signals to graphical data is required for
projection and large display purposes (with full audio capability)
The package includes these items:
 VP-725DSA Presentation Switcher / Scaler
 Power cord
2
 Infra-red remote control transmitter (including the required battery)
 Null-modem adapter
 This user manual
3
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 cables
4
2.1 Quick Start
This quick start chart summarizes the basic setup and operation steps.
1 GROUP 1: Distribution Amplifiers; GROUP 2: Video and Audio Switchers, Matrix Switchers and Controllers; GROUP 3:
Video, Audio, VGA/XGA Processors; GROUP 4: Interfaces and Sync Processors; GROUP 5: Twisted Pair Interfaces;
GROUP 6: Accessories and Rack Adapters; GROUP 7: Scan Converters and Scalers; and GROUP 8: Cables and Connectors
2 We recommend that you use only the power cord that is supplied with the machine
3 Download up-to-date Kramer user manuals from the Internet at this URL: http://www.kramerelectronics.com
4 The complete list of Kramer cables is on our Web site at http://www.kramerelectronics.com

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Getting Started
2
OSD ON
FREEZE
PIP
ENTER
- +
UP
DOWN
INPUT SELECTOR
1
111
1
V G A
C V Y C CO M P
DV I
FREEZE P IP
ENTE R
- +
UP
DOWN
OSD ON
2
222
23
3 3 3
4
4 4 4
           
VIDEO
GROUP AUDIO GROUP MASTER
AUDIO
SCALER
OVERRIDE TALKOVER LINE MIC OUTMIX
SEL ECT
MIC CO NTROL AU DIO L EVE L
Mic IN
AUDIO INPUTS
CV 2 CV 3 CV 4 YC 1 YC 2 YC 3 YC 4 VGA 1 VGA 2CV 1 VGA 3 VGA 4 COMP 1 COMP 2 COMP 3 COMP 4 DVI 1 DVI 2
MASTER
OUT
L+ L- G R+R- L+ L- G R+ R- L+ L- G R+R- L+ L- G R+R- L+ L- G R+ R- L+ L- G R+R- L+ L- G R+ R- L+ L- G R+ R- L+ L- G R+R- L+ L- G R+R- L+ L- G R+ R- L+ L- G R+ R- L+ L- G R+R- L+ L- G R+ R- L+ L- G R+ R- L+ L- G R+ R- L+ L- G R+ R- L+ L- G R+ R- L+ L- G R+ R-
AUDIO OUTPUTS
VGAYCCV
L+ L- G R+R- L+ L- G R+R- L+ L- G R+R- L+ L- G R+ R- L+ L- G R+R-
DVICOMP
COMP
VGA
CV YC
DVI
IN 1 G/Y1 B/Pb1 R/Pr1 B/Pb3
B/Pb
R/Pr3
R/Pr
B/ Pb2 R/Pr2G/Y2 G/Y 4
G/Y 3
G/Y
IN 1
IN 3
OUT
OUT
OUT
OUT
IN 2
IN 2
IN 4
IN 1 IN 3
IN 2 IN 4
OUTPUT
IN 1 IN 3
IN 2 IN 4
VGADVI
B/Pb4 R/Pr4
SCALED OUTPUTS
V
B/Pb
R/Pr
G/Y
Utilities
Information
Geometry
Brightness and Contrast
Gamma and Color
Source
OVERRIDE
TALKOVER
MIX
MIC CONTROL
LINE
MIC OUT
AUDIO LEVEL

Overview
3
3 Overview
The VP-725DSA Presentation Switcher / Scaler is designed for a wide
variety of presentation and multimedia applications. It is a true multi-standard
video to graphics scaler and presentation switcher for a wide variety of
presentation and multimedia applications. It consists of a very high quality
scaler with many user-selectable pixel-rates including VGA (640x480), SVGA
(800x600), XGA (1024x768), SXGA (1280x1024) and UXGA (1600x1200);
high definition television HDTV (480p, 720p and 1080i); and several optimum
plasma and LCD rates such as 852x1024i, 1024x1024i, 1366x768, 1365x1024,
1280x720, 720x483, 852x480, 1400x1050, 576P, 720x400, 832x624,
1024x800, 1152x864, 1152x870, 1152x900, 1280x960, 1280x768, 1024x576,
as well as a user definable output mode
1
.
In particular, the VP-725DSA:
 Offers high quality de-interlacing 3:2/2:2 pull down
2
 Supports firmware upgrade via RS-232
 Includes non-volatile memory that retains the last setting, after switching
the power off and then on again
 Scales and zooms (to up to 400% of the original size)
 Digitally reprocesses the signal to correct mastering errors, and
regenerates the video at a chosen line and pixel rate format, providing, for
example, native-resolution video for LCD, DLP and Plasma displays
 Facilitates scaling of graphics resolutions to other resolutions
 Incorporates a unique graphics-scaling engine with image enhancement
algorithms, which are built into the firmware
 Is specifically designed to improve video quality by reducing chroma noise
 Includes an OSD (on-screen display) for making the adjustments that can
be located anywhere on the screen, and can be doubled in size. The OSD
can be used to deactivate the source prompt, choose the color of the blank
screen, and choose from three seamless switching transition speeds
 Consists of 5 video groups—composite video, s-Video, component video
(RGB or YPbPr), DVI-D and VGA—and each group has 4 inputs (except
for DVI which has 2 inputs). Each video input has its own corresponding
balanced stereo audio input on a terminal block connector
1 Recommended for advanced users only – non-standard settings may not be recognized by the display device
2 Accommodates the frame-rate of a converted movie (24 frames per second) to video frequencies (25 frames per second
(PAL); 30 frames per second (NTSC)

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Overview
4
 Has multi-standard video support; supports VESA standards; HDTV
standards and other popular resolutions on the input. Does not support
1
HDCP (High bandwidth Digital Content Protection) on the DVI
2
 Features a Video Group Mode
3
and a Scaler Mode
4
. These modes function
simultaneously and independently (except for DVI: once a DVI input is
selected in the Scaler Mode, that DVI input selection cannot be changed
in the Video Group Mode)
 Features an Audio Group Mode
5
and a Master Audio Group Mode
6
, with
a balanced stereo audio output on a terminal block connector for each
group. In addition, in the AV Group you can select the audio-follow-video
input from each group for switching, and in the Master AV Group you can
convert the selected video input (one of 18) to the SCALED OUTPUTS,
and also route the selected audio input (one of 18) to the MASTER OUT
terminal block connector
 An independent Master Audio output that has a rich set of ProcAmp
features, including bass and treble controls (via the MENU and LCD status
display (and OSD when appropriate)), RS-232 and the infra-red remote
control transmitter
 Audio breakaway option (to switch audio independently from video) or
Audio-follow-video
 Adjustable volume on each input and output
 A microphone input that can be used by mixing, switching or talk-over
 Includes a front panel lock, as well as a separate OSD lock
 In addition to providing an up- or down- scaled output of the selected (one of
18) inputs, also functions as 4x1 switchers for each video group (2x1 for DVI)
 Has ProcAmp
7
controls for the scaler output
 Lets you freeze the image at any instant
 Lets you select the output colorspace (RGB or YPbPr)
1 A method of security encryption (developed by Intel and Silicon Image)
2 An HDCP source would show up as a very snowy, noisy picture at the output
3 Selects the video input from each group: CV, YC, Component, VGA, DVI for switching to its local (group) output
4 Converts the selected input (one of 18) to the SCALED OUTPUTS
5 Selects the audio input from each group for switching
6 Routes the selected audio input (one of 18) to the MASTER OUT terminal block connector
7 Processing amplification enables adjustment of different video and audio signal parameters

Your VP-725DSA Presentation Switcher / Scaler
5
 Has a text overlay feature
1
for insertion of subtitles, karaoke script, text
banners, and the like, which lets you send text to be displayed on the
scaled output
 Includes a built-in Picture-In-Picture (PIP) inserter
2
(letting you insert a
video source into a graphics background or vice versa. This PIP image
may be positioned and sized anywhere on the screen, or displayed as 2
images side-by-side (Split-Screen)
The VP-725DSA:
 Comes in a rugged, professional 19" 3U rack-mountable metal enclosure
 Uses a universal 100-240VAC automatic power supply
Control the VP-725DSA:
 From the front panel user-friendly menu-driven OSD (see section 9.1)
 From the front panel high contrast LCD Display (see section 9.2)
 Remotely, from the infra-red remote control transmitter (see section 9.3)
 Via Ethernet (see section 9.4)
 Remotely, via RS-232
Achieving the best performance means:
 Connecting 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)
 Avoiding interference from neighboring electrical appliances, making
sure not to block the ventilation holes, and positioning your VP-725DSA
away from moisture, excessive sunlight and dust
4 Your VP-725DSA Presentation Switcher / Scaler
Figure 1 and Table 1 define the front panel of the VP-725DSA:
1 The VP725 Text Overlay Application (Text Overlay Sender) for the VP-725DSA (and the VP-725DS) can be downloaded
at http://www.kramerelectronics.com
2 See section 7.4

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Your VP-725DSA Presentation Switcher / Scaler
6
INPUT SELECTOR
1
1 1 1
1
VGA
CV YC COMP
DVI
FREEZE PIP ENTER
- +
UP
DOWN
OSD ON
2
2 2 2
23
3 3 3
4
4 4 4
          
VIDEO
GROUP
AUDIO
GROUP
MASTER
AUDIO
SCALER
OVERRIDE TALKOVER LINE MIC OUTMIX
SELECT
MIC CONTROL
AUDIO LEVEL
VIDEO
GROUP
AUDIO
GROUP
MASTER
AUDIO
SCALER
OVERRIDE TALKOVER LINE MIC OUTMIX
SELECT
MIC CONTROL
AUDIO LEVEL
Figure 1: VP-725DSA Presentation Switcher / Scaler Front Panel

Your VP-725DSA Presentation Switcher / Scaler
7
Table 1: Front Panel VP-725DSA Presentation Switcher / Scaler Features
# Feature Function
1 VGA Button Selects one of the 4 VGA sources
2 DVI Button Selects one of the 2 DVI sources
1
3 CV Button Selects one of the 4 CV sources
4 YC Button Selects one of the 4 s-Video (Y/C) sources
5
INPUT
SELECTOR
COMP Button
Selects one of the 4 Component sources
6 POWER Switch Illuminated switch for turning the unit ON or OFF
7 IR Receiver / LED Green when the unit will accept IR remote commands; red in standby mode
2
8 FREEZE Button Freezes the output video image
3
9 PIP Button Selects the picture-in-picture function
3,4
10 MENU Button Displays the OSD Menu screen (or moves to the previous level in the OSD
screen) and locks/unlocks the front panel
3,5
11 ENTER Button Moves to the next level in the OSD screen
3
12 - Button Decreases the range by one step
3
13 + Button Increases the range by one step
3
14 DOWN Button Moves down one step (in the same level) in the OSD screen
3
15 UP Button Moves up one step (in the same level) in the OSD screen
3
16 OSD ON Button Activates/deactivates access to the OSD Menu
3, 6
17 LCD STATUS Display Displays the status
18 O VERRIDE
8
Routes the signal from the microphone to the Master output instead of from the
Line, whose signal is blocked
19 M IX
8
Routes the combined signals from the mic and the Line to the Master output
20
MIC CONTROL
7
Button
T ALKOVER
8
Routes the selected input to the output until an audio signal is detected on the
microphone input. When this happens the selected input is faded out (to be
faded back in when no input is detected on the microphone)
1 Note, that once a DVI input is selected in the Scaler Mode, that DVI input selection cannot be changed in the Video Group
Mode
2 After pressing the POWER key on the remote control transmitter (see Figure 55). The machine is temporarily powered
down except that the power switch (item 6) on the machine continues to illuminate
3 Scaler outputs only
4 See section 7.4
5 See section 7.5
6 The OSD ON front panel button is activated (illuminated) by default, and pressing the MENU front panel button (or the
MENU key on the infra-red remote control transmitter (see Figure 55)) displays the OSD Menu. To block display of the OSD
Menu, press the OSD ON front panel button (or the OSD key) to deselect the OSD ON front panel button (which is no longer
illuminated); the OSD OFF status appears superimposed over the top right corner of the screen. However, deselecting the
OSD ON front panel button during an OSD operation will not turn off the OSD Menu (even though the OSD OFF status
appears superimposed over the top right corner of the screen), letting you complete the OSD operation
7 Only one of the three buttons can be ON, or all three buttons can be OFF (pressing a button will select that button, and turn
OFF the previously selected button. If the selected button is pressed, it will turn it OFF)
8 When no MIC CONTROL button is selected, the audio input is routed to the MASTER output, ignoring the mic input

KRAMER: SIMPLE CREATIVE TECHNOLOGY
Your VP-725DSA Presentation Switcher / Scaler
8
# Feature Function
21 L INE
22 M IC
23
AUDIO
LEVEL
1
Button
O UT
2
Press this button and adjust using the –/+ buttons. The level is displayed in the
LCD Display and OSD
24 V IDEO G ROUP Shows which video input from each group is selected for switching, and
facilitates the selection of an alternative video input from each group
3
25 A UDIO G ROUP Selects the audio (breakaway mode) input from each group for switching
26 S CALER When selected shows which of the 18 video inputs has been selected to be
scaled at the SCALED OUTPUTS, and facilitates the selection of an alternative
video input for scaling
27
SELECT
1
Buttons
M ASTER A UDIO
When selected routes the selected audio input (one of 18) to the
MASTER OUT terminal block connector
Figure 2 and Table 2 define the rear panel of the VP-725DSA:
1 Only one of the three buttons can be ON, or all three buttons can be OFF (pressing a button will select that button, and turn
OFF the previously selected button. If the selected button is pressed, it will turn it OFF)
2 Selecting OUT when the Audio Group button illuminates, lets you select the group (scrolling through CV, YC, VGA,
Component and DVI, displaying the selection on the LCD (and OSD when appropriate) using the UP and DOWN buttons
3 Note, that once a DVI input is selected in the Scaler Mode, that DVI input selection cannot be changed in the Video Group
Mode

Your VP-725DSA Presentation Switcher / Scaler
9
VGA
CV YC
COMP
DVI
IN 1 G/Y1
B/Pb1
R/Pr1
B/Pb3
B/Pb
R/Pr3
R/Pr
B/Pb2
R/Pr2
G/Y2 G/Y4
G/Y3
G/Y
IN 1
IN 3
OUT
OUT
OUT
OUT
IN 2
IN 2
IN 4
IN 1 IN 3
IN 2 IN 4
RS-232
OUTPUT
IN 1 IN 3
IN 2 IN 4
VGADVI
B/Pb4
R/Pr4
SCALED OUTPUTS
V
B/Pb
R/Pr G/Y
90-264 VAC
50/60 Hz
Mic IN
COND. MIC
DYN. MIC
AUDIO INPUTS
AUDIO OUTPUTS
CV 2 CV 3 CV 4 YC 1 YC 2 YC 3 YC 4 VGA 1 VGA 2
VGAYCCV
CV 1
ETHERNET
VGA 3 VGA 4 COMP 1 COMP 2 COMP 3 COMP 4 DVI 1 DVI 2
MASTER
OUT
L+ L- G R+ R-
L+ L- G R+ R- L+ L- G R+ R- L+ L- G R+ R- L+ L- G R+ R- L+ L- G R+ R-
L+ L- G R+ R- L+ L- G R+ R- L+ L- G R+ R- L+ L- G R+ R- L+ L- G R+ R- L+ L- G R+ R- L+ L- G R+ R- L+ L- G R+ R- L+ L- G R+ R- L+ L- G R+ R- L+ L- G R+ R- L+ L- G R+ R- L+ L- G R+ R- L+ L- G R+ R- L+ L- G R+ R-
L+
L-
G
R+
R-
L+
L-
G
R+
R-
L+
L-
G
R+
R-
DVI
COMP
Figure 2: VP-725DSA Presentation Switcher / Scaler Rear Panel

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Your VP-725DSA Presentation Switcher / Scaler
10
Table 2: Rear Panel VP-725DSA Presentation Switcher / Scaler Features
# Feature Function
1 CV Connector Connects the balanced audio acceptor (for composite)
2 YC Connector Connects the balanced audio acceptor (for s-Video)
3 VGA Connector Connects the balanced audio acceptor (for VGA)
4 COMP Connector Connects the balanced audio acceptor (for component)
5
AUDIO
OUTPUT
Terminal Block
DVI Connector Connects the balanced audio acceptor (for DVI)
6 YC Connector Connects the balanced audio sources from 1 to 4 (for s-Video)
7 CV Connector Connects the balanced audio sources from 1 to 4 (for composite)
8 VGA Connector Connects the balanced audio sources from 1 to 4 (for VGA)
9 COMP Connector Connects the balanced audio sources from 1 to 4 (for component)
10
AUDIO INPUT
Terminal Block
DVI Connector Connects the balanced audio sources from 1 to 2 (for DVI)
11 MASTER OUT Terminal Block
Connector
Connects the routed balanced audio channel
12 Con / Dyn Switch Pushed in selects a dynamic microphone, released selects a
condenser microphone
13 Mic IN XLR Connector Connects to the microphone
14 YC OUT 4p Connector Connects to the s-Video (Y/C) acceptor
15 YC IN 4p Connectors Connects to the s-Video (Y/C) sources from 1 to 4
16 ETHERNET port Connects to your LAN
1
17 CV OUT BNC Connector Connects to the composite video acceptor
18 CV IN BNC Connectors Connects to the composite video sources from 1 to 4
19 VGA IN HD15 Connectors Connects to the VGA (analog interface) graphics sources from 1 to 4
20 VGA OUT HD15 Connector Connects to the VGA (analog interface) graphics acceptor
21 DVI IN Connectors Connects to the DVI (digital video interface) graphics sources from 1 to 2
22 G/Y BNC Connector
23 B/Pb BNC Connector
24
COMP
Inputs
R/Pr BNC Connector
Connect to the component video source or RGB source from 1 to 4
25 DVI OUT Connector Connects to the DVI (digital video interface) graphics acceptor
26 HBNC Connector
27 R/Pr BNC Connector
28 VBNC Connector
29 G/Y BNC Connector
30 B/Pb BNC Connector
Connects to the component video or RGB acceptor
31 DVI Connector Connects to the DVI (digital video interface) graphics acceptor
32
SCALED
OUPUTS
VGA HD15 Connector Connects to the VGA (analog interface) graphics acceptor
33 G/Y BNC Connector
34 B/Pb BNC Connector
35
COMP
OUTPUT
R/Pr BNC Connector
Connect to the component video acceptor or to an RGB acceptor
36 RS-232 DB 9 Connector Connects to PC or Serial Controller
37 Power Connector with FUSE AC connector enabling power supply to the unit
1 Local Area Network (that is, computers sharing a common communications line or wireless link, which often share a server
within a defined geographic area)

Installing on a Rack
11
5 Installing on a Rack
This section describes what to do before installing on a rack and how to rack
mount.
Before Installing on a Rack
Before installing on a rack, be sure that the environment is within
the recommended range:
Operating temperature range +5 to +45 Deg. Centigrade
Operating humidity range 5 to 65 % RHL, non-condensing
Storage temperature range -20 to +70 Deg. Centigrade
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 supply
connections other than direct connections to the branch
circuit (for example, the use of power strips), and that
you use only the power cord that is supplied with the
machine.
How to Rack Mount
To rack-mount the 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)

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Connecting the VP-725DSA Presentation Switcher / Scaler
12
6 Connecting the VP-725DSA Presentation Switcher / Scaler
This section describes how to connect the VP-725DSA. In particular, how to:
 Connect the VP-725DSA rear panel (see this section)
 Connect the VP-725DSA MASTER OUT connector (see section 6.1)
 Connect the interlaced and progressive RGBS and RGsB inputs (see section
6.2)
 Connect the PC (see section 6.3)
 Connect the Ethernet port (see section 6.4)
 Connect the audio inputs/outputs (see section 6.5)
Using the VP-725DSA you can select any one of the 18 inputs and scale that
input to up to three scaled outputs (at the identical resolution).
To connect the VP-725DSA, connect the following
1
to the rear panel, as the
example in Figure 3 illustrates:
1. Connect one or more of the following video sources:
 Up to four VGA graphics sources (for example, computers): VGA
Source 1, VGA Source 2, VGA Source 3 and VGA Source 4 to the
HD15 input connectors
2
 Up to four composite video sources
3
: CV Source 1, CV Source 2, CV
Source 3, and CV Source 4 to the BNC input connectors
 Up to four s-Video sources
3
: YC Source 1, YC Source 2, YC Source
3, and YC Source 4 to the 4p input connectors
 Up to four component video (sometimes called YUV, or Y, B-Y,
R-Y, or Y, Pb/Cb, Pr/Cr) sources or 4 RGB sources to the four sets of
3 BNC connectors, G/Y, B/Pb, and R/Pr. The example in Figure 3
illustrates an HDTV satellite receiver or an RGB camera connected
to COMP Source 4
 Up to two DVI
4
graphics sources (for example, computers): DVI
Source 1 and DVI Source 2 to the DVI connectors
1 Switch OFF the power on each device before connecting it to your VP-725DSA. After connecting your VP-725DSA, switch
on its power and then switch on the power on each device
2 These connectors also accept interlaced and progressive RGBS and RGsB signals (see Table 3)
3 For example, VCR machines
4 Not HDCP sources

Connecting the VP-725DSA Presentation Switcher / Scaler
13
2. Connect one or more of the following balanced stereo audio sources (not
illustrated in Figure 3). In particular, the audio of:
 VGA Sources 1, 2, 3 and 4 to the AUDIO input terminal block
connectors VGA 1, VGA 2, VGA 3, and VGA 4, respectively
 CV Sources 1, 2, 3 and 4 to the AUDIO input terminal block
connectors CV 1, CV 2, CV 3, and CV 4, respectively
 YC Sources 1, 2, 3 and 4 to the AUDIO input terminal block
connectors YC 1, YC 2, YC 3, and YC 4, respectively
 Component video/ RGB Sources 1, 2, 3 and 4 to the AUDIO input
terminal block connectors COMP 1, COMP 2, COMP 3, and COMP
4, respectively
 DVI Sources 1 and 2 to the AUDIO input terminal block connectors
DVI 1 and DVI 2, respectively
3. Connect a microphone to the Mic IN XLR connector
1
, and push in or
release the Con / Dyn Switch as appropriate (see item 12 in Table 2).
4. Connect the CV OUT BNC connector, the YC OUT 4p connector, and the
VGA OUT HD15 connector to the respective video inputs on the projector.
Connect the MASTER OUT terminal block connector to the balanced audio
input on the audio amplifier. Select any one of the three audio inputs to route
to the MASTER OUT
1
(see the example in section 6.1.1).
5. Connect the COMP OUTPUT BNC connectors: G/Y, B/Pb, and R/Pr to
the respective component video inputs on the Plasma monitor.
6. Connect up to three SCALED OUTPUTS, as follows:
 Connect the RGBHV connectors (G/Y, B/Pb, R/Pr, H, and V) to the
RGBHV acceptor, for example, a Plasma monitor
 Connect the DVI connector to the DVI acceptor, for example, a projector
 Connect the VGA connector to the VGA acceptor, for example, a monitor
7. Connect the MASTER OUT terminal block connector to the balanced
audio input on the audio amplifier, and route the audio input
(corresponding to the converted video input) to the MASTER OUT
1
(see
the example in section 6.1.2).
8. Connect the power cord
2
(not illustrated in Figure 3).
9. Connect a PC (optional), see section 6.2.
10. Connect the Ethernet port (optional), see section 6.4.
1 Not illustrated in Figure 3
2 We recommend that you use only the power cord that is supplied with this machine

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Connecting the VP-725DSA Presentation Switcher / Scaler
14
Figure 3: Connecting the VP-725DSA Presentation Switcher / Scaler