K R A ME R E LE CT R O N IC S L T D .
Contents 1 Introduction 1 2 2.1 2.2 2.3 3 3.1 Getting Started Achieving the Best Performance Safety Instructions Recycling Kramer Products Overview Defining the VP-28 Presentation Switcher 2 2 3 3 4 5 4 Installing the VP-28 in a Rack 8 5 5.1 5.2 5.3 Connecting the VP-28 Connecting a Serial Controller to the VP-28 Connecting to the VP-28 via Ethernet Connecting a Balanced/Unbalanced Stereo Audio Output 9 10 11 13 6 6.1 6.2 6.3 6.4 7 7.1 7.2 7.3 7.4 7.5 7.6 7.7 7.8 7.9 7.
Figures Figure 1: VP-28 Presentation Switcher Front Panel Figure 2: VP-28 Presentation Switcher Rear Panel Figure 3: Connecting the VP-28 Presentation Switcher Figure 4: Local Area Connection Properties Window Figure 5: Internet Protocol (TCP/IP) Properties Window Figure 6: Balanced Stereo Audio Output Connection Figure 7: Unbalanced Stereo Audio Output Connection Figure 8: Controller Software Main Window Figure 9: Typical Input Button Figure 10: Connection Method Window Figure 11: Input Selection Figure 12
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 video, audio, presentation, and broadcasting professionals on a daily basis.
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 • i 2.1 Go to http://www.kramerelectronics.com to check for up-to-date user manuals, application programs, and to check if firmware upgrades are available (where appropriate).
2.2 Safety Instructions ! 2.3 Caution: There are no operator serviceable parts inside the unit Warning: Use only the power cord that is supplied with the unit Warning: Do not open the unit.
3 Overview The VP-28 is a high-quality presentation switcher designed for a wide variety of presentation and multimedia applications. The VP-28 combines the functions of a 3x1 switcher for composite video and audio, a 3x1 switcher for HDMI and audio, a 3x1 switcher for computer graphics video (PC, UXGA) type signals with audio, a 3x1 switcher for DVI and audio, and a 2x1 DisplayPort video and audio switcher. The device includes two microphone inputs mixing facilities.
You can control the VP-28 via the front panel buttons, IR remote control using the Kramer infrared remote control transmitter (provided), over a LAN via Ethernet, or by RS-232 serial commands transmitted by a touch screen system, PC, or other serial controller. 3.1 Defining the VP-28 Presentation Switcher Figure 1 defines the front panel of the VP-28. Figure 2 defines the rear panel of the VP-28.
6 Figure 1: VP-28 Presentation Switcher Front Panel # 1 2 Feature IR Function LED Indicator Sensor Lights yellow when receiving IR signals Receives the IR signal VP-28 – Overview 3 POWER Switch Illuminated switch for turning on the power to the device 4 DVI Input Selection Buttons Press one of the three buttons to select the DVI input 5 HDMI Selection Buttons Press one of the three buttons to select the HDMI input 6 DP Selection Buttons Press one of the two buttons to select the DP input 7
VP-28 – Overview Figure 2: VP-28 Presentation Switcher Rear Panel # Feature Function 19 MIC IN XLR Connector Connect a microphone. Note: Only one microphone can be connected at a time 20 CV AUDIO 3.5mm Mini Jack Connectors IN 1 ~ IN 3, OUT Connect to the audio channel of the CV sources and acceptor 21 CV VIDEO RCA Connectors IN 1 ~ IN 3, OUT Connect to the video channel of the CV sources and acceptor 22 HDMI AUDIO 3.
4 Installing the VP-28 in a Rack This section provides instructions for rack mounting the unit.
5 Connecting the VP-28 i Always switch off the power to any device before connecting it to your VP-28. After connecting your VP-28, connect its power and then switch on the power to the other devices. Figure 3: Connecting the VP-28 Presentation Switcher To connect the VP-28 as illustrated in the example in Figure 3: 1. Connect a microphone to the MIC IN XLR connector. 2. Connect a composite video source (for example, a composite video player) to the VIDEO IN 1 RCA connector.
3. Connect the composite VIDEO OUT RCA connector to a composite video acceptor (for example, a projector). 4. Connect an HDMI source (for example, a DVD player) to the HDMI IN 1 HDMI connector. 5. Connect the HDMI OUT connector to an HDMI acceptor (for example, an LCD TV). 6. Connect a DisplayPort video source (for example, a laptop) to the DP IN 1 DP connector. 7. Connect the DP OUT connector to a DisplayPort video acceptor (for example, a projector). 8. Connect the DVI AUDIO OUT 3.
5.2 Connecting to the VP-28 via Ethernet You can connect the VP-28 via Ethernet via either of the following methods: • • A crossover cable (see Section 5.2.1) for direct connection to the PC A straight through cable (see Section 5.2.2) for connection via a network hub or network router After connecting the Ethernet port, you have to install and configure your Ethernet Port.
Figure 4: Local Area Connection Properties Window 6. Select Use the following IP Address and enter the details as shown in Figure 5. You can use any IP address in the range 192.168.1.1 to 192.168.1.255 (excluding 192.168.1.39) that is provided by your IT department. Figure 5: Internet Protocol (TCP/IP) Properties Window 7. Click OK.
5.2.2 Connecting to the Ethernet Port via a Network Switch/Hub To connect to the Ethernet port on the VP-28 via a network switch/hub: • Connect the PC to the Ethernet network switch/hub using a straight through cable 5.
6 Operating the VP-28 The input/output button color indicates the current state of the channel as described in the following table. Button Color Red Purple Green 6.1 State Selected group input Selected group input + active Master audio input Selected Master audio input Operating the Combined 5 x 1 Switching Group By default, the VP-28 operates as a four 3 x 1 and one 2 x 1 switcher whereby the video and audio for each group is switched to the output of the same group.
To operate the combined 14 x 1 Master audio switching group: 1. Press the Master Audio Sel button. The button lights red. 2. Press one of the 14 input select buttons (three DVI, three PC, three HDMI, three CV and two DP) to switch the audio to the Master Out connector. The selected button lights green and the input is switched to the Master Audio output. Note: If this is the same input as is selected for the audio group selection, the button lights purple. 3.
6.4 Resetting the VP-28 to the Factory Default To reset the VP-28 to factory defaults: 1. Switch off the VP-28. 2. Press and hold the RESET button on the rear panel. 3. Switch on the VP-28. 4. Wait a few seconds and release the button. The parameters and configuration are reset to their factory defaults (see Section 9).
7 Operating the VP-28 Remotely You can operate the VP-28 remotely using the VP-28 Controller Software via either the RS-232 serial port or the Ethernet port. The VP-28 Application Software can be downloaded from http://www.kramerelectronics.com. The Controller Software requires the following: • Windows™ XP, Vista or Windows™ 7 • Microsoft .Net Framework version 3.5 To install the Controller Software, download the software and run the setup file.
# Feature Function 1 2 Connect/Disconnect Button Select Input Buttons 3 Combine Button 4 Audio Master Level Adjustment Status Indicator Click to connect to or disconnect from the device (see Section 7.2) Click one of the 14 input buttons to select an input.
7.1 The Controller Software Menu Bar The following table describes the Controller Software menu bar options.
3. For Ethernet, enter the IP address and Port number of the device and click Connect. To set the default IP address and Port number, press the Default button. 4. For a serial connection, select the required Com port from the drop-down list. 5. Click Connect. If the connection is successful, the window shown in Figure 8 appears. If the connection is not successful, a Timeout error message appears. 7.
7.5 Operating the Combined 5 x 1 HDMI/DP Switching Group The HDMI and DP inputs can be grouped together into a single 5 x 1 switching group. Figure 13: Combine Button To combine the HDMI and DP inputs into a 5 x 1 switching group: 1. Click on the Combine button as shown in Figure 13.
7.6 Changing the Audio Levels To change the audio levels: • Click, hold and slide on the required slider or click the up and down arrows as shown in Figure 15. The volume level changes accordingly. Figure 15: Changing the Audio Levels 7.7 Muting Audio and Selecting the Talkover or Mix Audio Modes Figure 16: Muting Audio and Selecting the Talkover and Mix Modes To mute the audio: • Select the Mute check box. The Master audio is muted. Note: The Mic input is not muted.
The Mix mode is selected and the audio from the input and the microphone are mixed together and output. 7.8 Changing the Input Button Icons and Labels To change an input button icon and label: 1. Right-click on the relevant input button. The button properties window appears as shown in Figure 17. Figure 17: Input Button Properties Window 2. In the Label text field, enter the required button label. 3.
7.9 Upgrading the Firmware To upgrade the firmware: 1. Download the latest firmware file from http:www.kramerelectronics.com. 2. Click Device > Firmware Upgrade. 3. Browse to the firmware file that you downloaded. 4. Click Open. The device firmware is loaded. Note: Do not interrupt the uploading process or the device may be damaged. 5. When the process is complete power cycle the device. 7.10 Setting the IP Network Parameters To set the IP network parameters: 1. Click Device > Device Details. 2.
Figure 18: Device Details Window 3. Click Set Value. A confirmation message appears. 4. Click OK. The parameter is set. 5. Power cycle the device.
8 26 Technical Specifications INPUTS: Video: 3 Composite video on RCA connectors 3 HDMI on HDMI connectors 2 DP on DisplayPort connectors 3 PC/DVI on DVI connectors Audio: 1 Microphone on an XLR connector 1 Microphone on a 6.3mm phone jack connector (3mV / 10kΩ condenser/dynamic) 3 Unbalanced stereo audio on 3.5mm mini jack connectors (for CV) 3 Unbalanced stereo audio on 3.5 mini jack connectors (for HDMI) 2 Unbalanced stereo audio on 3.5mm mini jack connectors (for DP) 3 Unbalanced stereo audio on 3.
AUDIO THD + NOISE: Master: 0.4% from Mic, 0.02% from Line in (“A” weighting) Local out: 0.04% from Line in AUDIO 2nd HARMONIC: Master: 0.0.3% from Mic, 0.01% from Line in Local out: 0.02% from Local output COMPLIANCE WITH HDCP STANDARD: Supports HDCP MAXIMUM BANDWIDTH DP TO HDMI: One or two lane (1.
9 Default Parameters 9.1 Default Communication Parameters EDID EDID data is passed between the connected output and the live input within each of the DVI/ VGA, HDMI or DP groups RS-232 Protocol 3000 (Default) Baud Rate 115,200 Data Bits 8 Stop Bits 1 Parity None Command Format ASCII Example (Output 1 to Input 1) #AV 1>1 Ethernet To reset the IP settings to the factory reset values, power cycle the device while holding in the Factory Reset button, located on the rear panel of the unit 9.
10 Protocol 3000 Control Commands The following sections describe the ASCII values (which the protocol in Section 11 describes in more detail). 10.1.1 The Switching Control ASCII Table The following table lists the Protocol 3000 ASCII audio and video switching for the VP-28.
10.1.2 Audio Gain Control ASCII Tables The following table sets the audio gain control for the groups. ….. ….. ….. Master Output MIC Output Gain # AUD-LVL 2,6,–80 # AUD-LVL 2,7,–80 –80dB (mute) ….. 0dB (1:1) # AUD-LVL 2,6,15 # AUD-LVL 2,7,15 15dB (max) ….. # AUD-LVL 2,7,0 ….. # AUD-LVL 2,6,0 ….. 30 ….. …..
11 Kramer Protocol The VP-28 supports Kramer Protocol 3000. 11.1 Protocol Output Definitions The protocol output definitions are: 11.
Device message format: Start ~ Address (optional) Sender_id@ Body message Delimiter CR LF Device long response (Echoing command): Start ~ Address (optional) Sender_id@ Body command SP [param1 ,param2 …] result Delimiter CR LF CR = Carriage return (ASCII 13 = 0x0D) LF = Line feed (ASCII 10 = 0x0A) SP = Space (ASCII 32 = 0x20) 11.2.2 Command Part Details Command: Sequence of ASCII letters ('A'-'Z', 'a'-'z' and '-'). Command will separate from parameters with at least single space.
Commands chaining: It is possible to enter multiple commands in same string by '|' char (pipe). In this case the message starting char and the message closing char will be entered just one time, in the string beginning and at the end. All the commands in string will not execute until the closing char will be entered. Separate response will be sent for every command in the chain. Input string max length: 64 characters. The following table lists the instruction codes for Protocol 3000.
Read audio connection AUD? OUT Short form: A? OUT AUD? * AUD IN>OUT AUD IN>1, IN>2, … Parameters Description: IN = Input number or '0' to disconnect output. '>' = Connection character between in and out parameters. OUT = Output number or '*' for all outputs.
RESULT Read audio mute state MUTE? MUTE MUTE-MODE Set talk over TLK TALKOVER_MODE TLK TALKOVER_MODE RESULT Read talk over TLK? TLK TALKOVER_MODE Set audio mix MIX MIX-MODE MIX MIX-MODE RESULT Read audio mix MIX? MIX MIX-MODE Parameters Description: STAGE = "In","Out" or Numeric value (present audio processing stage). For example: "0" for Input level, "1" for Pre-Amplifier, "2" for Amplifier (Out) etc.
Identification commands Command Set IP address Syntax Response Ethernet Commands NET-IP IP_ADDRESS NET-IP IP_ADDRESS RESULT Short form: NTIP Read IP address NET-IP? Short form: NTIP? NET-IP IP_ADDRESS Read MAC address NET-MAC? Short form: NTMC NET-MAC MAC_ADDRESS Set subnet mask NET-MASK SUBNET_MASK Short form: NTMSK NET-MASK SUBNET_MASK RESULT Read subnet mask NET-MASK? Short form: NTMSK? NET-MASK SUBNET_MASK Set gateway address NET-GATE GATEWAY_ADDRESS Short form: NTGT NET-GATE GATEWAY_AD
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