Kramer Electronics, Ltd.
Contents Contents 1 2 2.1 3 3.1 3.2 3.3 4 4.1 5 6 6.1 6.2 6.3 Introduction Getting Started Quick Start Overview About HDCP Defining EDID Recommendations for Best Performance Your VM-24HDCP 2 Input 1:4 DVI Distributor Using the IR Transmitter Installing in a Rack Connecting the VM-24HDCP Connecting via RS-232 (for example, using a PC) Operating the VM-24HDCP Using the EDID Buttons 1 1 2 3 3 4 4 4 6 7 8 10 10 10 6.3.1 6.3.2 6.3.
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.
Overview 3 Overview The VM-24HDCP is an HDCP compliant distribution amplifier for DVI-D signals. The unit accepts one of two DVI inputs, and distributes the selected signal to four outputs. The VM-24HDCP features: • Up to 2.
Your VM-24HDCP 2 Input 1:4 DVI Distributor 3.2 Defining EDID The Extended Display Identification Data (EDID 1) is a data-structure, provided by a display, to describe its capabilities to an HDCP source. The EDID enables the VM-24HDCP to “know” what kind of monitor is connected to the output. The EDID includes the manufacturer’s name, the product type, the timing data supported by the display, the display size, luminance data and (for digital displays only) the pixel mapping data. 3.
Your VM-24HDCP 2 Input 1:4 DVI Distributor Figure 1: VM-24HDCP 2 Input 1:4 DVI Distributor 5
Your VM-24HDCP 2 Input 1:4 DVI Distributor Table 1: VM-24HDCP 2 Input 1:4 DVI Distributor Features # Feature 1 IR Receiver 2 3 4 5 POWER LED SELECT IN 2 Button 1 1 IN 1 Button 3 READ EDID Buttons 2 6 7 SELECT OUTPUT STATUS LEDs (from 1 to 4) 8 9 10 11 12 INPUT 1 DVI Connector INPUT 2 DVI Connector OUTPUT DVI Connectors RS-232 9-pin D-sub Port REMOTE IR 5 13 14 Power Connector with Fuse POWER Switch 4.
Installing in a Rack 5 Installing in a Rack This section provides instructions for rack mounting the unit. .
Connecting the VM-24HDCP 6 Connecting the VM-24HDCP To connect the VM-24HDCP, as illustrated in the example in Figure 2, do the following 1: 1. Connect2 the two DVI sources3 (for example, a DVD player and a set top box) to the INPUT 1 and INPUT 2 connectors, respectively. 2. Connect the DVI OUTPUT connectors3 to up to four DVI acceptors, using Kramer DVI cables.
Connecting the VM-24HDCP Figure 2: Connecting a VM-24HDCP 2 Input 1:4 DVI Distributor 9
Connecting the VM-24HDCP 6.1 Connecting via RS-232 (for example, using a PC) You can connect a PC (or other controller) to the VM-24HDCP via the RS-232 port.
Connecting the VM-24HDCP To cycle between the different modes (One Output, Default and Auto-mix), as defined in Table 2, press the EDID SELECT button Table 2: The EDID Modes Current EDID Mode One Output Appearance The selected output LED flashes Default The output LEDs flash simultaneously Auto-mix The output LEDs flash in sequence To cycle to the Default EDID Press the EDID SELECT button once again after selecting output 4.
Connecting the VM-24HDCP 6.3.2 Acquiring the Default EDID To reset to the default EDID, do the following: 1. Connect the power supply. 2. Press the EDID SELECT button and set it to the Default EDID mode. All the OUTPUT STATUS LEDs flash simultaneously. 3. Press the EDID READ button to copy the default EDID to the inputs1. While the EDID is being copied, the EDID SELECT and READ buttons illuminate. The new EDID is copied when both buttons no longer illuminate. 6.3.
Technical Specifications 7 Technical Specifications Table 3 includes the technical specifications 1 of the VM-24HDCP: Table 3: VM-24HDCP Technical Specifications INPUTS: OUTPUTS: BANDWIDTH: CONTROLS: INDICATOR LEDs: POWER SOURCE: DIMENSIONS: WEIGHT: ACCESSORIES: OPTIONS: 2 DVI, 1.2Vpp on a DVI Molex 24pin female connector; DDC signal 5Vpp (TTL) 4 DVI, 1.2Vpp on DVI Molex 24pin female connectors; DDC signal 5Vpp (TTL) Supports up to 2.
Communication Protocol 8 Communication Protocol The VM-24HDCP is compatible with Kramer’s Protocol 2000 (version 0.50) (below). This RS-232/RS-485 communication protocol uses four bytes of information as defined below. For RS-232, a null-modem connection between the machine and controller is used. The default data rate is 9600 baud, with no parity, 8 data bits and 1 stop bit.
Communication Protocol Table 5: Instruction Codes for Protocol 2000 Note: All values in the table are decimal, unless otherwise stated.
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 PN: 2900- 000538 Rev: 2 Kramer Electronics, Ltd. Web site: www.kramerelectronics.com E-mail: info@kramerel.
