Crestron Electronics
World's Largest AV and Room Control System Manufacturer — Corporate Boardrooms to Smart Homes
Crestron Electronics (Rockleigh, NJ, founded 1971 by George Feldstein) is the world's largest manufacturer of commercial AV control systems, room booking panels, and smart home automation. With dominant market share in European corporate offices, university auditoriums, government buildings, and luxury hotels, Crestron systems are typically specified by AV consultants for meeting room control, video conferencing integration, and digital signage. In smart building projects, Crestron control processors integrate with KNX via KNXnet/IP, coordinating AV control with lighting scenes and HVAC setpoints.
Role in our panels
How we use Crestron Electronics
Crestron CP4N control processor: the flagship commercial room control processor (4-series, DIN-rail mountable, PoE or 24V DC power) runs 3-Series Control Engine (3-SERIES OS) and programs in Simpl Windows or Simpl+ (C-like language) — or more recently in C# via SIMPL# Pro. The CP4N has: 3 × RS-232/422/485 serial ports, 4 × IR/serial ports, 1 × Ethernet (10/100/1000 Mbps), digital/relay I/O. KNX integration: the Crestron KNX driver (a SIMPL module, available from Crestron developer portal) sends KNXnet/IP tunnelling telegrams to a KNX IP Router. Programming: in Simpl Windows, the KNX driver module receives logic signals from other SIMPL modules (room booking calendar, touch panel button presses) and translates them to KNX group address writes. TSW touchpanels: Crestron's TSW series (TSW-770, TSW-1070, TSW-1070-TSS) are 7" and 10" touch panels for room booking, AV source selection, and environmental control (temperature display, blind control). For KNX integration: TSW panel displays KNX thermostat setpoint (read from KNX DPT 9.001 status GA via CP4N KNX driver) and writes new setpoint when user adjusts slider. TSW "Lights On" button → CP4N → KNXnet/IP → KNX GA (DPT 18.001 scene 1 → ABB dimmer recalls "Presentation" scene at 80%). TSW scheduling: the TSW-1070-TSS room panel integrates with Microsoft Exchange/Office 365 for room booking — room booked 30min ahead → CP4N triggers KNX "Warm-Up" scene (lights 50%, HVAC comfort mode). Crestron Home OS: distinct from the commercial CP4N platform, Crestron Home OS runs on the MC4 hub (rack mount or DIN-rail) for luxury residential projects. Crestron Home includes: mobile/tablet app, voice control (Alexa, Google, Siri via Crestron native HomeKit integration), local processing with no cloud dependency. KNX integration in Crestron Home: the Crestron KNX module (available in Crestron Home programming environment) communicates with KNX IP Router via KNXnet/IP routing, mapping KNX group addresses to Crestron Home devices (light, shade, thermostat, security) with full bidirectional status feedback. DM NVX AV-over-IP: Crestron's AV-over-IP platform (DM NVX encoders/decoders, DM NVX 360 matrix switch) distributes 4K/60 video over standard 10G Ethernet. In integrated commercial projects: DM NVX transmits HDMI from laptop/PC in meeting rooms → NVX matrix routes to specific display → CP4N controls NVX routing via the DM NVX API (TCP/IP, proprietary protocol) while simultaneously sending KNX commands for room lighting and blind control. The integrated workflow: connect laptop to room HDMI → CP4N auto-detects → NVX routes video → KNX dimmer sets "Presentation" scene → blinds close to 80% → HVAC reduces fan speed 20% (reduced noise in meeting room via KNX/Modbus VFD).
Crestron integrates with KNX via the Crestron KNX driver for CP4N or Crestron Home MC4 hub, communicating via KNXnet/IP tunnelling to KNX IP Router. TSW touchpanels display KNX sensor values and trigger KNX scenes. Room booking automations trigger KNX HVAC preconditioning, lighting warmup and blind positioning. KNX energy monitoring data (kWh per room from Carlo Gavazzi meters) can be displayed on TSW panels for occupant feedback.
Used in these project types
Crestron Electronics products
Key components we install
CP4N 4-series control processor (DIN-rail, RS-232/485, Ethernet)
CP4N 4-series control processor (DIN-rail, RS-232/485, Ethernet)
TSW-1070 10-inch room scheduling touch panel
TSW-1070 10-inch room scheduling touch panel
DM NVX 200 4K AV-over-IP encoder/decoder
DM NVX 200 4K AV-over-IP encoder/decoder
Crestron Home MC4 residential automation hub
Crestron Home MC4 residential automation hub
DMPS3-4K-150-C all-in-one 4K presentation switcher
DMPS3-4K-150-C all-in-one 4K presentation switcher
Crestron Electronics FAQ
What programming language does Crestron use and is it compatible with KNX ETS6?
Crestron uses its own proprietary programming environment: SIMPL Windows (graphical signal-flow programming) for commercial CP4 systems, and Crestron Home programming UI (no-code) for residential. For advanced custom logic: SIMPL# Pro (C# .NET runtime on control processor). Crestron does NOT integrate with KNX ETS6 — ETS6 is used to program KNX devices, while Crestron programs its own CP4N processor independently. Integration is at the network level: Crestron KNX driver sends KNXnet/IP UDP packets to the KNX IP Router, which delivers them to KNX devices. The two programming environments are completely separate — Crestron engineer programs the AV control system; KNX engineer programs the building automation layer; both communicate via IP.
Is Crestron a competitor to KNX or a complement?
Both — it depends on project scope. Crestron competes directly with KNX in the residential smart home market where both are used for lighting, shading, HVAC, and access control. In commercial buildings, Crestron typically focuses on AV control (video conferencing, room scheduling) while KNX handles building services (lighting, HVAC, energy monitoring). The most successful large commercial projects use both: Crestron for AV room control and room booking panels, KNX for the building automation backbone (lighting zones, motorised shades, energy metering), integrated via KNXnet/IP. In the luxury residential market, Crestron Home competes directly with KNX + Gira X1 — both offer comparable lighting/shading/HVAC control, with Crestron having stronger native AV integration and KNX having broader European device ecosystem and ETS6 standards-based programming.
Can Crestron touchpanels display KNX sensor data?
Yes. Through the Crestron KNX driver, the CP4N reads KNX group address values (temperatures from KNX thermostats, energy readings from KNX power meters, occupancy status from KNX binary inputs) and makes them available as SIMPL signals. These signals are passed to the TSW touchpanel's dynamic user interface — you can design a custom page in SIMPL Windows showing: room temperature (reading KNX DPT 9.001 from an Elsner sensor), daily energy consumption (from KNX Carlo Gavazzi meter), blind position (from KNX Somfy actuator status GA). The TSW panel can also write KNX values: user slides the temperature setpoint from 21°C to 23°C on the TSW → SIMPL signal → KNX driver → KNXnet/IP write to DPT 9.001 → KNX thermostat actuator adjusts HVAC setpoint.
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