K R A ME R E LE CT R O N IC S L TD .
Contents 1 Introduction 1 2 2.1 2.2 2.3 3 3.1 Getting Started Achieving the Best Performance Safety Instructions Recycling Kramer Products Overview Defining the RC-74DL Master Room Controller 2 2 3 3 4 5 4 4.1 4.2 4.3 Connecting the RC-74DL Connecting the RS-232 Interface Connecting the Ethernet Port Grounding the RC-74DL 8 9 10 10 5 Operating the RC-74DL 12 6 6.
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 video, audio, presentation, and broadcasting professionals on a daily basis.
2 Getting Started We recommend that you: Unpack the equipment carefully and save the original box and packaging materials for possible future shipment Review the contents of this user manual i 2.1 Go to http://www.kramerelectronics.com/support/product_downloads.asp to check for up-to-date user manuals, application programs, and to check if firmware upgrades are available (where appropriate).
2.2 Safety Instructions ! 2.3 Caution: There are no operator serviceable parts inside the unit Warning: Use only the Kramer Electronics input power wall adapter that is provided with the unit Warning: Disconnect the power and unplug the unit from the wall before installing Recycling Kramer Products The Waste Electrical and Electronic Equipment (WEEE) Directive 2002/96/EC aims to reduce the amount of WEEE sent for disposal to landfill or incineration by requiring it to be collected and recycled.
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.
3.1 Defining the RC-74DL Master Room Controller This section defines the RC-74DL.
Figure 2: RC-74DL Master Room Controller - Rear # Feature Function 1 ETHERNET RJ-45 Connector Connects to the PC or other serial controller through computer LAN 2 RESET TO DEFAULT Button Caution: The current LCD text and all button actions are erased This operation should be carried out by authorized Kramer technical personnel or by an external system integrator, and requires removal of the device from the wall by unscrewing the four wall mount screws Using a small screwdriver, push to erase all cu
# 7 Feature K-NET1 Connector Function Connect the GND pin to the Ground connection; pin B (-) and pin A (+) are for RS-485, and the +12V pin is for powering the unit The ground connection is sometimes connected to the shield of the RS-485 cable (in most applications, it is not connected) 8 9 K-NET2 Connector Ring Tongue Terminal Grounding Screw Connect the GND pin to the Ground connection (see Section 4.
4 Connecting the RC-74DL i Always switch off the power to each device before connecting it to your RC-74DL. After connecting your RC-74DL, connect its power and then switch on the power to each device. To connect the RC-74DL, as shown 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.
Figure 3: Connecting the RC-74DL Master Room Controller 4.1 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.
4.2 Connecting the Ethernet Port The Ethernet connection of the RC-74DL lets you perform all control functions of the RC-74DL over the Internet using a PC running the Kramer Site-CTRL control program. To connect the RC-74DL to a network: 1. Connect the Ethernet port of the RC-74DL to the Ethernet port on a network hub or network router, via a straight cable with RJ-45 connectors. 2. At the other end, connect the Internet to a PC running Site-CTRL. 3.
To ground the RC-74DL: 1. Connect the Ring Tongue terminal to the building grounding point wire (it is recommended to use a green-yellow AWG#18 (0.82mm2) wire, crimped with a proper hand-tool). 2. Insert the M3x6 screw through the toothed lock washers and the tongue terminal in the order shown above. 3. Insert the M3x6 screw (with the two toothed lock washers and ring tongue terminal) into the grounding screw hole and tighten the screw.
5 Operating the RC-74DL You can operate your RC-74DL using: The front panel buttons. These are configured using the K-Config software.
6 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. The following illustration shows the sample button label sheets.
14 RC-74DL - Front Panel Button Caps and Labels
RC-74DL - Front Panel Button Caps and Labels 15
6.1 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 6 with the “wings” on the left and right sides. Figure 6: Button Cap Orientation 3. Insert the label inside the cap. ON Figure 7: Button Cap Orientation with Label 4. Retaining the orientation, place the button cap on the buttons of the RC-74DL. Figure 8: Placing the Button Cap 5.
8. Insert the four mounting screws and tighten with a screwdriver. 9. Install the volume control knob.
7 Technical Specifications INPUTS: 3 RS-232, 1 RS-485, 2 GPI/O and 2 K-NET on terminal block connectors; Ethernet on an RJ-45 connector; 1 infrared sensor, 1 USB for programming OUTPUTS: 2 IR, 4 relays (36V AC or DC, 2A, 60VAC maximum on non-inductive load) and 2 GPI/O on terminal block connectors DEFAULT IP SETTINGS: IP number 192.168.1.39; Mask – 255.255.0.0; Gateway – 0.0.0.
For the latest information on our products and a list of Kramer distributors, visit our Web site where updates to this user manual may be found. We welcome your questions, comments, and feedback. Web site: www.kramerelectronics.com E-mail: info@kramerel.
