Kramer Electronics, Ltd.
Contents Contents 1 2 2.1 3 4 5 6 6.1 6.2 6.3 6.4 Introduction Getting Started Quick Start Overview Your VP-727A-BA Balanced Audio Switcher Installing the VP-727A-BA in a Rack Configuring the VP-727A-BA Balanced Audio Switcher Connecting the VP-727A-BA Balanced Audio Switcher Connecting a PC (via RS-232) to a Standalone VP-727A-BA Configuring the VP-727A-BA with the VP-727xl and the VP-727T Connecting via RS-485 1 1 1 3 3 7 8 8 10 11 13 7 7.1 7.2 7.
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 Kramer VP-727A-BA is a high performance 8x2 switcher for balanced stereo audio signals. It switches any input to either the preview or program output. The VP-727A-BA is an audio companion switcher for the VP-727xl Universal Presentation Matrix Switcher / Scaler and the VP-727 Universal Presentation Matrix Switcher / Scaler, and operates in conjunction with them and the VP-727T Presentation Switcher Control Panel.
Your VP-727A-BA Balanced Audio Switcher Figure 1: VP-727A-BA Balanced Audio Switcher 4 KRAMER: SIMPLE CREATIVE TECHNOLOGY
Your VP-727A-BA Balanced Audio Switcher Table 1: VP-727A-BA Balanced Audio Switcher Front Panel Features # Feature 1 2 3 4 5 6 7 POWER Switch PREVIEW Input Buttons PROGRAM Input Buttons MUTE Preview Button Program Button CONTROL SELECT Button IN LEVEL Button 8 OUT LEVEL Button 9 10 11 LOCK Button PHONES 12 13 14 15 16 AUDIO LEVEL 7-segment Display + Button - Button TAKE Button FADE Button 17 AFV Button 6.
Your VP-727A-BA Balanced Audio Switcher Table 2: VP-727A-BA Balanced Audio Switcher Rear Panel Features Feature INPUT XLR F Connectors OUTPUTS # 18 19 20 21 22 23 24 25 RIGHT LEFT PREVIEW XLR LEFT M Connectors RIGHT S/PDIF RCA Connector PROGRAM XLR RIGHT M Connectors LEFT DIP 8 SETUP DIPs 1 DIP 7 DIP 6 DIP 5 DIPs 3 and 4 DIP 2 DIP 1 26 RS-485 Port 27 RS-232 Connector 28 Power Connector with Fuse Function Connect to the balanced stereo audio source (from 1 to 8) Connect to a balanced stereo audio
Installing the VP-727A-BA in a Rack 5 Installing the VP-727A-BA in a Rack This section describes what to do before installing in a rack and how to rack mount.
Configuring the VP-727A-BA Balanced Audio Switcher 6 Configuring the VP-727A-BA Balanced Audio Switcher This section describes how to: • Connect the VP-727A-BA (see section 6.1) • Connect a PC (see section 6.2) • Configure an AV presentation switcher, with a controller (see section 6.3) • Connect via the RS-485 (see section 6.4) 6.1 Connecting the VP-727A-BA Balanced Audio Switcher To connect 1 the VP-727A-BA as the example in Figure 2 illustrates, do the following 2: 1.
Configuring the VP-727A-BA Balanced Audio Switcher Figure 2: Connecting the VP-727A-BA with a VP-727xl Machine 9
Configuring the VP-727A-BA Balanced Audio Switcher 6.2 Connecting a PC (via RS-232) to a Standalone VP-727A-BA 1 You can connect a PC (or other controller) to a standalone VP-727A-BA via the RS-232 port for remote control and for upgrading the firmware.
Configuring the VP-727A-BA Balanced Audio Switcher 1 6.3 Configuring the VP-727A-BA with the VP-727xl and the VP-727T The VP-727A-BA can be controlled by the VP-727T in conjunction with one or more VP-727xl or VP-727 units. The VP-727A-BA can be connected to the: • VP-727xl (see Figure 4) or the VP-727 (see Figure 5) • VP-727T via the VP-727xl or the VP-727 using the RS-485 ports The example in Figure 4 illustrates how to connect two VP-727A-BA machines and two VP-727xl machines to a VP-727T controller.
Configuring the VP-727A-BA Balanced Audio Switcher The example in Figure 5 illustrates how to connect a VP-727A-BA and a VP-727 machine to a VP-727T controller. On the VP-727A-BA, set DIP 7 to ON.
Configuring the VP-727A-BA Balanced Audio Switcher 6.4 Connecting via RS-485 You can connect the VP-727A-BA to the VP-727T, via RS-485 communication, via the VP-727xl (see section 6.4.1) or via the VP-727 (see section 6.4.2). 6.4.1 Connecting the VP-727A-BA to the VP-727T via the VP-727xl To connect the VP-727A-BA to the Kramer VP-727T Presentation Switcher Control Panel via the RS-485 control port, as illustrated in the example in Figure 6, do the following: 1.
Configuring the VP-727A-BA Balanced Audio Switcher VP-727A-BA VP-727xl VP-727T Side Panel RS-485 PINOUT G _ B + A Figure 6: RS-485 Configuration between the VP-727A-BA and the VP-727xl 14 KRAMER: SIMPLE CREATIVE TECHNOLOGY
Configuring the VP-727A-BA Balanced Audio Switcher 6.4.2 Connecting the VP-727A-BA to the VP-727T via the VP-727 To connect the VP-727A-BA to the Kramer VP-727T Presentation Switcher Control Panel via the RS-485 control port, as illustrated in the example in Figure 7, do the following: 1.
Configuring the VP-727A-BA Balanced Audio Switcher VP-727A-BA VP-727 VP-727T Side Panel RS-485 PINOUT G _ B + A Figure 7: RS-485 Configuration between the VP-727A-BA and the VP-727 16 KRAMER: SIMPLE CREATIVE TECHNOLOGY
Flash Memory Upgrade 7 Flash Memory Upgrade The VP-727A-BA firmware is located in FLASH memory, which lets you upgrade 1 to the latest Kramer firmware version in minutes! The process involves: • Downloading from the Internet (see section 7.1) • Connecting the PC to the RS-232 port (see section 7.2) • Upgrading Firmware (see section 7.3) 7.1 Downloading from the Internet You can download the up-to-date file 2 from the Internet. To do so: 1. Go to our Web site at www.kramerelectronics.
Flash Memory Upgrade 7.3 Upgrading Firmware Follow these steps to upgrade the firmware: 1. Double click the desktop icon: “Shortcut to FLIP.EXE”. The Splash screen appears as follows: Figure 8: Splash Screen 2. After a few seconds, the Splash screen is replaced by the “Atmel – Flip” window: Figure 9: 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).
Flash Memory Upgrade Figure 10: Device Selection Window 4. Click the button next to the name of the device and select from the list: AT89C51RD2: AT89C51RD2 T89C51RD2 Figure 11: Selecting the Device Window 5. Click OK and select “Load Hex” from the File menu.
Flash Memory Upgrade Figure 12: Loading the Hex 6. The Open File window opens. Select the correct HEX file that contains the updated version of the firmware for VP-727A-BA (for example 44M_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 13: RS-232 Window 8.
Flash Memory Upgrade Figure 14: Atmel – Flip Window (Connected) 9. Click Run. After each stage of the operation is completed, the check-box for that 1 stage becomes colored green . When the operation is completed, all 4 check-boxes will be colored green 2 and the status bar message: Memory Verify Pass appears : Figure 15: Atmel – Flip Window (Operation Completed) 10. Close the “Atmel – Flip” window. 11. Disconnect the power on the VP-727A-BA.
Technical Specifications 12. If required, disconnect the RS-232 rear panel port on the VP-727A-BA unit from the Null-modem adapter. 13. On the rear side, slide the SETUP DIP 1 to OFF. 14. Connect the power to the VP-727A-BA. Upon initialization, the new VP-727A-BA software version shows in the STATUS 7-segment Display. 8 Technical Specifications Table 3 includes the technical specifications: 1 Table 3: Technical Specifications of the VP-727A-BA Balanced Audio Switcher INPUTS: OUTPUTS: MAX.
Kramer VP-727A-BA Protocol (Ver. 3.21) 9 Kramer VP-727A-BA Protocol (Ver. 3.21) A protocol for the VP-727A-BA is described below. For RS-232: A null-modem connection between the PC and the VP-727A-BA is required, and data is at 9600 baud (for standalone 1), no parity, 8 data bits, and 1 stop bit. For RS-485: A differential (2 wire) connection between the VP-727(xl) and the VP-727A-BA is required (A, B); GND may be connected to the shield if required. All values shown are hexadecimal.
Kramer VP-727A-BA Protocol (Ver. 3.
Kramer VP-727A-BA Protocol (Ver. 3.
Kramer VP-727A-BA Protocol (Ver. 3.
Kramer VP-727A-BA Protocol (Ver. 3.
Kramer VP-727A-BA Protocol (Ver. 3.21) NOTE 5: The reply to the Identify Machine command shows the machine name - 1st byte: 0x7d - 2nd byte: 0x80 + 0x07 (7 dec) - 3rd byte: 0x80 + 0x1b (27 dec) - 4th byte: 0x81 NOTE 6: The reply to the Identify Firmware command shows the firmware version as - 1st byte: 0x7d - 2nd byte: 0x80 + the version number prior to decimal point - 3rd byte: 0x80 + the version number following the decimal point - 4th byte: 0x81 For example, for version 3.
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 three 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.
