Kramer Electronics, Ltd.
Contents Contents 1 2 2.1 3 4 5 6 6.1 6.2 7 7.1 7.2 8 8.1 8.2 8.3 9 10 11 11.1 11.2 12 12.1 12.2 13 13.1 13.
Contents Figures Figure 1: VP-27 Presentation Switcher Figure 2: Connecting the VP-27 Figure 3: Connecting to a PC Figure 4: VP-27 Dipswitches Figure 5: FlashLoader Window Figure 6: Flash Upgrade Process 4 9 10 10 13 14 Tables Table 1: Front Panel VP-27 Presentation Switcher Features Table 2: Rear Panel VP-27 Presentation Switcher Features Table 3: Dipswitch Settings (Default Setting) Table 4: Technical Specifications of the VP-27 Presentation Switcher Table 5: Communication Parameters Table 6: VP-27 Hex
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 groups 1 that are clearly defined by function.
Getting Started 2 KRAMER: SIMPLE CREATIVE TECHNOLOGY
Overview 3 Overview The VP-27 is a high quality presentation switcher designed for a wide variety of presentation and multimedia applications. The VP-27 combines the functions of a 4x1 switcher for composite video and audio, a 4x1 switcher for s-Video and audio, and a 4x1 switcher for computer graphics video (PC/VGA) type signals with audio.
Your VP-27 Presentation Switcher Figure 1: VP-27 Presentation Switcher 4 KRAMER: SIMPLE CREATIVE TECHNOLOGY
Your VP-27 Presentation Switcher Table 1: Front Panel VP-27 Presentation Switcher Features # 1 2 3 4 5 6 7 Feature IR Receiver POWER LED INPUT SELECTOR Buttons VIDEO (CV) s-VIDEO (Y/C) PC MASTER AUDIO Y/C SELECTOR Buttons CV 8 PC 9 10 11 12 13 14 15 16 MIC MASTER + VOLUME Buttons + MIC MUTE Button TALK OVER Button MIX Button 17 LOCK Button Function Signals from the remote control transmitter illuminate the LED Lights when the unit is turned ON Select the composite video / audio input (from 1 to 4)
Your VP-27 Presentation Switcher Table 2: Rear Panel VP-27 Presentation Switcher Features # 18 19 20 21 22 23 24 Feature Video Connectors 25 RS-232 (Tx, Rx, G) Terminal Block Connector PC AUDIO IN 3.5mm Mini Plugs PC AUDIO OUT 3.5mm Mini Plug MIC 6.
Installing the VP-27 in a Rack 5 Installing the VP-27 in a Rack This section describes what to do before installing in a rack and how to rack mount.
Connecting the VP-27 Presentation Switcher 6 Connecting the VP-27 Presentation Switcher To connect 1 the VP-27, as illustrated in the example in Figure 2, do the following 2: 1.
Connecting the VP-27 Presentation Switcher Figure 2: Connecting the VP-27 9
Connecting the VP-27 Presentation Switcher 6.1 Connecting a PC You can connect a PC (or other controller) to the VP-27 via the RS-232 terminal block connector. To connect a PC to a VP-27 unit, connect the RS-232 terminal block connector on the VP-27 unit to the RS-232 9-pin D-sub port on your PC, see Figure 3: RS-232 to VP-27 PIN 5 Connected to G PIN 3 Connected to Rx PIN 2 Connected to Tx 9 8 7 6 5 G 4 3 2 1 Rx Tx PC (9-pin D-sub) Figure 3: Connecting to a PC 6.
Operating the VP-27 Presentation Switcher 7 Operating the VP-27 Presentation Switcher The VP-27 operates in the audio-follow-video 1 (AFV) mode so that the audio signal follows the selected input signal. You can select the video signals within each switcher group by pressing the relevant INPUT SELECTOR 2 buttons.
Firmware Upgrade 7.1 Locking the Front Panel To prevent changing the settings accidentally or tampering with the front panel, lock your VP-27. Unlocking releases the protection mechanism. To lock the VP-27: • Press the LOCK button for more than 2 seconds The LOCK button illuminates, freezing the front panel controls. Pressing a button will have no effect, except to cause the LOCK button to blink 1.
Firmware Upgrade 8.2 Connecting the PC to the RS-232 Port Before installing the latest Kramer firmware version on a VP-27 unit, connect the RS-232 9-pin D-sub rear panel port on the VP-27 unit to your PC. 8.3 Upgrading Firmware Follow these steps to upgrade the firmware: 1. Double click the desktop icon: “FlashLoader”. 2. Connect the power on the VP-27 unit and switch it ON. 3. Set the appropriate COM port. The following window appears: Figure 5: FlashLoader Window 4. Click the Send Bin File button.
Firmware Upgrade 5. Select the latest VP-27 firmware version, and click Open. Wait for completion of the upgrade procedure. The new firmware version appears in the INPUT STATUS 7-segment Display. Figure 6: Flash Upgrade Process 6. If required, disconnect the RS-232 rear panel port on the VP-27 unit from the PC.
Technical Specifications 9 Technical Specifications Table 4 includes the technical specifications: 1 Table 4: Technical Specifications of the VP-27 Presentation Switcher INPUTS: OUTPUTS: MAX. OUTPUT LEVEL: BANDWIDTH (-3dB): DIFF. GAIN: DIFF.
Communication Parameters 10 Communication Parameters Table 5 lists the communication parameters as used in Kramer Electronics products.
Hex Table (Protocol 2000) 11 Hex Table (Protocol 2000) The following sections describe the Hex values (which the protocol in Section 13.4 describes in more detail) for the VP-27 Presentation Switcher. RS-232 communication is at 9600 baud, no parity, 8 data bits and 1 stop bit. 11.
ASCII Table (Protocol 3000) Table 9: Set the Audio Output Gain Control for the Master Audio Audio Gain Control for Master Out 16 80 80 81 Mute 16 80 F1 81 … … 0dB (1:1) 16 80 FF 81 Maximum Table 10: Increase or Decrease the Audio Output Gain by One Step Increase Decrease 12 CV OUT 18 81 80 81 Y/C OUT 18 82 80 81 PC OUT 18 83 80 81 Master Out 18 80 80 81 Microphone 18 84 80 81 18 81 81 81 18 82 81 81 18 83 81 81 18 80 81 81 18 84 81 81 ASCII Table (Protocol 3000) The following sections descr
Kramer Protocol 12.2 The Audio Gain Control ASCII Tables The following tables describe the audio gain controls.
Kramer Protocol 13.2.1 Switching Protocols via the Front Panel Buttons To switch from protocol 3000 to protocol 2000, press and hold 1 the CV group INPUT 1 and INPUT 2 buttons for a few seconds. To switch from protocol 2000 to protocol 3000, press and hold the CV group INPUT 1 and INPUT 3 buttons for a few seconds. 13.2.
Kramer Protocol # Address@ Command_1 Parameter1_1,Parameter1_2,… |Command_2 Parameter2_1,Parameter2_2,… |Command_3 Parameter3_1,Parameter3_2,… |…CR Device message format: Start Address (optional) ~ Sender_id@ Body message Delimiter CR LF Device long response (Echoing command): Start Address (optional) Body ~ Sender_id@ command SP [param1 ,param2 Delimiter …] result CR LF CR = Carriage return (ASCII 13 = 0x0D) LF = Line feed (ASCII 10 = 0x0A) SP = Space (ASCII 32 = 0x20) 13.3.
Kramer Protocol 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.
Kramer Protocol 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.
Kramer Protocol Mute audio MUTE MUTE-MODE MUTE MUTE-MODE RESULT Read audio mute state MUTE? MUTE MUTE-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. CHANNEL = Input or Output # VOLUME = Audio parameter in Kramer units, precede minus sign for negative values. ++ increase current value, -- decrease current value.
Kramer Protocol 13.4 Kramer Protocol 2000 This RS-232 communication protocol uses four bytes of information as defined below. The default data rate is 9600 baud, with no parity, 8 data bits and 1 stop bit.
Kramer Protocol Table 17: Instruction Codes for Protocol 2000 Note: All values in the table are decimal, unless otherwise stated.
Kramer Protocol NOTE 4 - The reply to a "REQUEST" instruction is as follows: the same instruction and INPUT codes as were sent are returned, and the OUTPUT is assigned the value of the requested parameter. The replies to instructions 10 and 11 are as per the definitions in instructions 7 and 8 respectively.
LIMITED WARRANTY Kramer Electronics (hereafter Kramer) warrants this product free from defects in material and workmanship under the following terms. HOW LONG IS THE WARRANTY Labor and parts are warranted for seven years from the date of the first customer purchase. WHO IS PROTECTED? Only the first purchase customer may enforce this warranty. WHAT IS COVERED AND WHAT IS NOT COVERED Except as below, this warranty covers all defects in material or workmanship in this product.
For the latest information on our products and a list of Kramer distributors, visit our Web site: www.kramerelectronics.com, 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. Web site: www.kramerelectronics.com E-mail: info@kramerel.
