The Kramer RC-74DL-B is a state-of-the-art 12-button master room controller equipped with a digital volume knob and LCD displays, designed for seamless integration into complex multimedia environments. Its versatility is highlighted by its compatibility with Kramer’s Site-CTRL™ system for remote AV control and management, making it an ideal choice for auditoriums and meeting rooms. The controller features customizable buttons, easy installation, and robust connectivity options, ensuring a user-friendly experience for managing multimedia systems, lighting, and other room facilities.
Kramer RC-74DL-B Features
- Back Lit & Label Capable Buttons: 12 RGB-color, tactile feedback buttons enhance usability and visibility in various lighting conditions.
- Custom Labelled, Removable Button Caps: Allows for personalized configurations and easy updates as needs change.
- Volume Control Knob with LEDs: Bi-directional rotary dial provides precise volume control with visual feedback to ensure accurate adjustments.
- LCD Displays: 3 blue-color and 8 white-character displays offer clear visual feedback and group configuration labeling for improved user interaction.
- 2 K-NET™ Connectors: Enables connection to master room controllers and auxiliary keypads for extended control options.
- K-NET™ Single Link Connection: Simplifies installation by carrying both power and control communications over a single cable.
- 1 RS-485 Bi-directional Control Port: Facilitates control of devices using RS-485 protocols for reliable communication.
- 3 RS-232 Bi-directional Control Ports: Allows for control of multiple devices via serial protocols for comprehensive management.
- 2 IR Emitter Control Ports: Provides infrared control capabilities for compatible devices, enhancing versatility.
- 2 GPI/O Control Ports: Configurable ports for controlling various devices such as sensors or lighting systems, adding flexibility to the system.
- 4 Relay Control Ports: Enables control of physical devices like screens and shades through relay contact closures for integrated room automation.
- IR Sensor Port: Learns commands from IR remotes for easy integration into existing systems.
- Program Control: Configuration through Kramer K-Config software allows for tailored setups to meet specific user needs.
- Kramer Site-CTRL™ Compatibility: Ensures network management and remote control capabilities over Ethernet for enhanced system oversight.
- Keypad Lock-Out: Provides security by allowing users to lock and unlock keypad buttons to prevent unauthorized access.
- Mini USB Port: Facilitates easy configuration file uploads and device setup, enhancing user convenience.
- Mounting: Designed for in-wall installation in standard 3 gang US wall junction boxes for a clean and professional appearance.
- Easy Installation: Fits standard in-wall boxes, simplifying setup and reducing installation costs.
Kramer RC-74DL-B Detailed Specifications
| Model | RC-74DL-B |
| Button Count | 12 |
| Connectivity | K-NET™, RS-485, RS-232, IR Emitter |
| Volume Control Type | Bi-directional rotary knob with LED feedback |
| Display Type | 3 LCD displays (blue and white) |
| Ports | 2 K-NET™, 1 RS-485, 3 RS-232, 2 IR Emitter, 2 GPI/O, 4 Relay |
| Installation | In-wall, fits standard 3 gang US boxes |
| Power Supply | Via K-NET™ or USB during configuration |
| Compatibility | Kramer Site-CTRL™ |
| Keypad Lock-Out | Yes |



















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