Kramer SL-280 Room Controller


32–Port Master / Room Controller

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SKU: SL-280 Category:


The SL−280 is a master/space controller (Kramer Control brain) that can operate over Ethernet with control interfaces that include: eight bidirectional RS−232, eight IR, eight GPI/O, and eight relays. It controls devices such as scalers, video displays, audio amplifiers, Blu−ray players, sensors, screens, shades, door locks, and lights. Multiple Kramer Ethernet control gateways can be used to add remote I/O ports.

  • Space Controller — Controls any AV device/display with its corresponding logic.
  • High Performance Architecture — Enables a scalable and flexible programming platform.
  • 8 RS–232 Bidirectional Control Ports — For controlling devices via bi–directional serial control protocols.
  • 8 IR Emitter & 1 IR Receiver Control Ports — Control devices via IR control protocols and learn commands from IR remotes.
  • 8 GPI/O Control Ports — Control devices via general purpose I/O ports, program configured as digital input, digital output or analog input interface for controlling sensors, door locks, audio volume and lighting control devices.
  • 8 Relay Control Ports — Control devices via relay contact closure, such as opening and closing drapes, shades, blinds, and projection screen scrolling.
  • Network Support — 10/100/1000Mbps Ethernet.
  • LED Indicators — I/O port state and system status.
  • Software Management Support — Kramer Control, API.


  • Controls small to large spaces for commercial, education and government sectors



Kramer provides innovative IT/AV solutions that blend cutting-edge cloud, software, and hardware technologies for Pro AV.

Additional information


1 built–in IR sensor (for learning)


8 IR out and 8 relays on 2–pin terminal block connectors


8 RS–232 serial on 3–pin terminal blocks, 8 GPI/O on 2–pin terminal blocks, 1 Ethernet on a RJ–45 connector, 1 micro–USB connector for sending P3K commands and performing a firmware upgrade


LED indicator for each port and function




512MB RAM, 4GB Flash


100–240V AC, 200mA


Power supply

Product Dimensions

19" x 7.20 x 1U (43.6cm x 18.30cm x 4.36cm) W, D, H

Product Weight

1.7kg (3.6lbs) approx.

Shipping Dimensions

55.00cm x 27.60cm x 10.70cm (21.65" x 10.87" x 4.21" ) W, D, H

Shipping Weight

2.6kg (5.7lbs) approx.


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