Kramer Electronics, Ltd.
Contents Contents 1 2 3 3.1 3.2 3.3 4 5 5.1 5.2 6 7 8 8.
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 groups1 that are clearly defined by function.
Overview 3 Overview The RC-74DL is a highly versatile, 3 gang US, master room controller that acts as an all-in-one extended remote control panel for control of AV equipment—especially projectors and associated equipment—in any room (such as classrooms, boardrooms, or auditoriums). It streamlines operations and simplifies control by integrating audio, video, and computer-video sources into a centralized system.
Overview 3.
Defining the RC-74DL Master Room Controller 4 Defining the RC-74DL Master Room Controller Figure 1 and Table 1 define the front panel of the RC-74DL.
Defining the RC-74DL Master Room Controller Figure 2 and Table 2 define the rear panel of the RC-74DL.
Defining the RC-74DL Master Room Controller Table 2: RC-74DL Master Room Controller Rear Panel Features # 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Feature ETHERNET RJ-45 Connector Function Connects to the PC or other serial controller through computer LAN Caution: The current LCD text and all button actions will RESET TO DEFAULT1 Button be erased 2 Push to erase Push to erase all custom programming and reset to the factory default definitions3: IP Address: 192.168.1.39 Mask: 255.255.0.0 Gateway: 0.0.0.
Connecting the RC-74DL Master Room Controller 5 Connecting the RC-74DL Master Room Controller To connect1 the RC-74DL, as shown in the example in Figure 3, do the following: 1. Connect the IR outputs as follows: Connect an IR emitter to IR OUTPUT 1 and attach the emitter to the DVD player Connect an IR emitter to IR OUTPUT 2 and attach the emitter to the power amplifier 2.
Connecting the RC-74DL Master Room Controller Figure 3: Connecting the RC-74DL Master Room Controller 8 KRAMER: SIMPLE CREATIVE TECHNOLOGY
Connecting the RC-74DL Master Room Controller 5.1 Connecting the RS-232 Interface To connect an AV device to the RC-74DL using the RS-232 port, connect the RS-232 9-pin D-sub port on your AV device to the RS-232 terminal block on the rear panel of the RC-74DL as shown in Figure 4. RS-232 Device Pin 5 Pin 3 Pin 2 Ground Rx Tx Figure 4: RS-232 Connection 5.
Grounding the RC-74DL Master Room Controller 6 Grounding the RC-74DL Master Room Controller The grounding screw is used to earth the chassis of the unit to the building ground preventing static electricity from impacting the performance of the unit. Figure 5 and Table 3 define the grounding screw components.
Front Panel Button Caps and Labels 8 Front Panel Button Caps and Labels The RC-74DL is supplied with a button label sheet and 12 clear, button caps to house the labels. Figure 6 illustrates a sample button label sheet.
Front Panel Button Caps and Labels 12 KRAMER: SIMPLE CREATIVE TECHNOLOGY
Front Panel Button Caps and Labels Figure 6: Sample Button Label Sheet 13
Front Panel Button Caps and Labels 8.1 Installing the Front Panel Button Caps, Labels To install the button caps and labels: 1. Remove the required labels from the supplied button label sheet. 2. Hold the button cap so that it is oriented as shown in Figure 7 with the “wings” on the left and right sides. Figure 7: Button Cap Orientation 3. Insert the label inside the cap. ON Figure 8: Button Cap Orientation with Label 4. Retaining the orientation, place the button cap on the buttons of the RC-74DL.
Technical Specifications 9 Technical Specifications The RC-74DL technical specifications1 are shown in Table 4.
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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 P/N: 2900- 000691 Rev: 3 Kramer Electronics, Ltd. Web site: www.kramerelectronics.com E-mail: info@kramerel.
