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 6.4 Introduction Getting Started Quick Start Overview About HDMI Defining EDID Recommendations for Best Performance Your VM-24H 2 Input 1:4 HDMI Distributor Using the IR Transmitter Installing in a Rack Using the VM-24H Connecting the VM-24H Controlling via RS-232 (for example, using a PC) Operating the VM-24H Using the EDID Buttons 1 1 2 3 3 4 5 5 7 8 9 9 11 11 12 7 8 Technical Specifications Communication Protocol 14 15 6.4.1 6.4.2 6.4.
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 Each high quality HDMI Distributor accepts one of two HDMI inputs, and distributes the selected signal to four outputs. The VM-24H features: • Support for up to 2.25Gbps bandwidth per graphic channel 1 • HDMI Support – HDMI (V.1.4 with Deep Color, x.v.
Overview 1 In particular, HDMI : • Provides a simple 2 interface between any audio/video source, such as a set-top box, DVD player, or A/V receiver and video monitor, such as a digital flat LCD / plasma television (DTV), over a single lengthy 3 cable • Supports standard, enhanced, high-definition video, and multichannel digital audio 4 on a single cable • Transmits all ATSC HDTV standards and supports 8-channel digital audio, with bandwidth to spare to accommodate future enhancements and requirements • Ben
Your VM-24H 2 Input 1:4 HDMI Distributor 3.
Your VM-24H 2 Input 1:4 HDMI Distributor Figure 1: VM-24H 2 Input 1:4 HDMI Distributor 6 KRAMER: SIMPLE CREATIVE TECHNOLOGY
Your VM-24H 2 Input 1:4 HDMI Distributor Table 1: VM-24H 2 Input 1:4 HDMI Distributor Features # Feature 1 IR Receiver 2 3 4 5 POWER Switch 1 SELECT IN 1 Button 1 IN 2 Button READ2 EDID Buttons 6 7 SELECT OUTPUT STATUS LEDs 8 9 10 11 12 INPUT 1 HDMI Connector INPUT 2 HDMI Connector OUTPUT HDMI Connectors RS-232 9-pin D-sub Port 4 REMOTE IR Opening 13 Power Connector with Fuse 4.
Installing in a Rack 5 Installing in a Rack This section provides instructions for rack mounting the unit. .
Using the VM-24H 6 Using the VM-24H This section describes how to: • Connect the VM-24H, see section 6.1 • Control the VM-24H via RS-232, see section 6.2 • Operate the VM-24H, see section 6.3 • Use the EDID button, see section 6.4 6.1 Connecting the VM-24H To connect the VM-24H, as illustrated in the example in Figure 2, do the following1: 1. Connect2 the two HDMI sources, for example, a DVD player and a set top box, to the INPUT 1 and INPUT 2 connectors, respectively. 2.
Using the VM-24H Figure 2: Connecting a VM-24H 2 Input 1:4 HDMI Distributor 10 KRAMER: SIMPLE CREATIVE TECHNOLOGY
Using the VM-24H 6.2 Controlling via RS-232 (for example, using a PC) You can connect a PC (or other controller) to the VM-24H via the RS-232 port.
Using the VM-24H 6.
Using the VM-24H 4. Press the EDID READ button to copy the EDID of the selected OUTPUT 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. 6.4.2 Acquiring the Default EDID To reset to the default EDID 2, 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.
Technical Specifications 7 Technical Specifications Table 3 includes the technical specifications 1 of the VM-24H: Table 3: VM-24H Technical Specifications INPUTS: OUTPUTS: BANDWIDTH: COMPLIANCE WITH HDMI STANDARD: CONTROLS: INDICATOR LEDs: POWER SOURCE: DIMENSIONS: WEIGHT: ACCESSORIES: OPTIONS: 2 HDMI connectors 4 HDMI connectors Supports up to 2.
Communication Protocol 8 Communication Protocol The VM-24H 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 Kramer Electronics, Ltd. Web site: www.kramerelectronics.com E-mail: info@kramerel.
