The RC−74DL is a 12-button control keypad with rotary encoder and LCD displays. It is a versatile device that connects to powerful control tools: via Ethernet, it connects to Kramer Site−CTRL™, a remote AV site control, management and monitoring system. For extended controlled device capacity, it connects to gateways connected to the local network. For remote keypad control, it connects via KNET™ to main room controllers and auxiliary keypads. It can flexibly serve either as a standalone room controller, or as part of a multi-unit KNET™ system, or as part of a multi-unit Ethernet system managed by the Kramer Site−CTRL™ site management platform. The RC−74DL is ideal for auditoriums and meeting rooms, for convenient control of their complex multimedia systems and other equipment such as displays, lighting and blinds.


- Backlit and customisable buttons — 12 RGB buttons, with tactile feedback and backlighting. The buttons are grouped into 3 groups, each with its own LCD display.

- Removable button caps with custom labels.

- Rotary volume control encoder with LED — Bidirectional digital rotary encoder for volume control, with 5-LED bar for visual feedback of sound level.

- LCD displays — 3 blue LCD displays with 8 white characters, in 3 button groups, for programmed visual indication and configured group labelling.

- 2 K−NET™ connectors — Connection to main room controller and auxiliary keypads for remote keypad control.

- Simple K−NET™ connection — Provides single-cable connectivity for the keypad, carrying both power and keypad control communication information.

- 1 bidirectional RS−485 control port — Device control via RS−485 control protocols.

- 3 bidirectional RS−232 control ports — Device control via bidirectional serial control protocols.

- 2 IR transmitter control ports — Device control via IR control protocols.

- 2 GPI/O control ports — Device control via general-purpose input/output ports, configurable and programmable as digital input interface, digital output or analogue input to control sensors, door locks, audio volume and light dimming level, or lighting control devices.

- 4 relay control ports — Device control via relay contact closure, for example for projection screens, curtains, blinds and shutters.

- IR sensor port — Learning commands from IR remote controls.

- Programmable control — Programmable configuration with Kramer K−Config software.

- Kramer Site−CTRL™ compatibility — For network management and remote control via Ethernet port.

- Keypad lock — Option to prevent tampering by locking and unlocking keypad buttons.

- Mini USB port — For downloading configuration files, setting K−NET™ identification number and powering the device during configuration.

- Mounting — Wall mounting, in standard American 3-gang wall junction boxes.

- Easy installation — Fits standard wall boxes for simple and economical installation.