Crestron part number RMC4
The Crestron RMC4 is a compact 4-Series control system in Crestron's IFE micro form factor, powered by PoE. It controls and monitors anything from a single display or small AV system to lighting, shading, climate, security and energy management, and its small size lets it fit almost anywhere.
Price on request
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About the Crestron RMC4
At its core is an embedded 4-Series multicore processor with 1 GB of SDRAM and 8 GB of flash memory, plus support for USB mass storage devices up to 1 TB. It supports control apps for iPhone, iPad and Android devices, XPanel computer and web based control, and an optional modular programming architecture. Crestron Fusion room monitoring and scheduling and XiO Cloud provisioning and management are also supported.
Onboard there is a bidirectional COM port for RS-232, RS-422 or RS-485 at up to 115.2k baud, two IR/serial outputs, two digital inputs, two normally open isolated relays rated 1 A at 30 VAC/VDC, and a Cresnet master port. The NET port carries Cresnet data only, with no power, so connected Cresnet devices must be powered from another source. Expansion modules, Ethernet to Cresnet bridges and I/O extenders add more connectivity, all sold separately.
The RMC4 is powered by PoE (IEEE 802.3at Type 1, 802.3af compatible, Class 0) through its 100BASE-T LAN port and uses 6.5 W. Its black and blue plastic enclosure can be freestanding, stacked, surface mounted or fitted to a 35 mm DIN EN 60715 rail, where it takes 8 DIN module spaces (144 mm). It measures 1.35 in. (35 mm) high, 5.04 in. (128 mm) wide and 2.86 in. (73 mm) deep, and operates from 32 to 104°F (0 to 40°C).
Key features
- Compact 4-Series control system in the IFE micro form factor
- Multicore 4-Series processor with 1 GB SDRAM and 8 GB flash
- Powered by PoE, 6.5 W consumption
- COM port for RS-232/422/485 up to 115.2k baud
- 2 IR/serial outputs, 2 digital inputs and 2 isolated relays
- Cresnet master port (data only) and 100BASE-T Ethernet
- Control apps for iPhone, iPad and Android, plus XPanel
- Crestron Fusion and XiO Cloud support
RMC4 specifications
| Processor and memory | 4-Series multicore CPU; 1 GB SDRAM; 8 GB flash; USB mass storage up to 1 TB |
|---|---|
| Ethernet | 1 RJ-45, 100BASE-T, PoE powered device port; 100 Mbps, auto-switching, auto-negotiating |
| COM | 1 bidirectional RS-232/422/485 port, up to 115.2k baud, hardware and software handshaking |
| IR/serial | 2 outputs; IR up to 1.2 MHz; 1-way serial TTL/RS-232 (0 to 5 V) up to 115.2k baud |
| Relays and inputs | 2 normally open isolated relays, 1 A at 30 VAC/VDC; 2 digital inputs, rated 0 to 24 VDC |
| Cresnet | 1 Cresnet master port, data only (no power) |
| USB | 1 USB OTG port (Micro-AB) for computer console and USB mass storage |
| Power | PoE, IEEE 802.3at Type 1 (802.3af compatible) Class 0 (12.95 W) powered device; 6.5 W consumption |
| Mounting | Freestanding, stackable, surface mount or 35 mm DIN EN 60715 rail; 8 DIN module spaces (144 mm) |
| Dimensions | 1.35 in. (35 mm) H, 1.77 in. (45 mm) with bracket; 5.04 in. (128 mm) W, 5.36 in. (137 mm) with bracket; 2.86 in. (73 mm) D |
Part numbers on this page
| Part number | Version | Price | Add |
|---|---|---|---|
| RMC4 | Standard | On request |
Where the RMC4 is used
Crestron installed by 1Install
We supply, install and programme Crestron in homes and businesses across Ireland. These photos are from our own installations. See more in our projects, or budget a whole system with our Quote Builders for homes and meeting rooms.



Questions about the Crestron RMC4
What is the Crestron RMC4?
It is a compact 4-Series control system in the IFE micro form factor. It provides control and monitoring for a single display device, a small AV system, lighting and shading, climate control, security, energy management and other specialised applications, and it is powered over the network by PoE.
How is the RMC4 powered?
It is a PoE powered device: IEEE 802.3at Type 1, 802.3af compatible, Class 0 (12.95 W), and it consumes 6.5 W. Power arrives through the 100BASE-T LAN PoE port. The Cresnet NET port provides data only, so the RMC4 does not supply power to Cresnet devices.
What control ports does the RMC4 have?
It has one bidirectional COM port for RS-232, RS-422 or RS-485 up to 115.2k baud, two IR/serial outputs for 1-way control, two digital inputs rated 0 to 24 VDC, two normally open isolated relays rated 1 A at 30 VAC/VDC, a Cresnet master port and Ethernet.
Can I add more ports to an RMC4?
Yes. Crestron lists control port expansion modules, Ethernet to Cresnet bridges, wired Ethernet I/O extenders and Wi-Fi network I/O extenders as ways to expand its connectivity. These are all sold separately, and the right one depends on the devices being controlled.
How can the RMC4 be mounted?
The RMC4 can be freestanding, stacked, surface mounted or fitted to a 35 mm DIN EN 60715 rail, where it occupies 8 DIN module spaces (144 mm). It measures 1.35 in. (35 mm) high, 5.04 in. (128 mm) wide and 2.86 in. (73 mm) deep, in a black and blue plastic enclosure.
How much is the Crestron RMC4?
Crestron asks its dealers to give the price of the RMC4 directly rather than publish it online. Add it to your quote list and we will send you a written quote, with delivery, and installation and programming if you need them.
Can 1Install supply, install and programme the RMC4?
Yes. 1Install is an authorised Crestron Elite Partner with offices in Skerries, Co. Dublin and Cork. We can supply the RMC4 on its own, or install, set up and programme it as part of your system. Installation visits are €440 for 4 hours or €880 for a full day, plus VAT and travel.
Does the RMC4 come with a warranty?
Yes. Everything we supply is new, genuine Crestron with Crestron's standard warranty. If the RMC4 develops a fault, contact us and we will handle the claim with Crestron. If we installed it, our workmanship is guaranteed for the lifetime of the system.
Is the RMC4 in stock?
We order Crestron for each quote, so availability depends on Crestron's stock at the time. We check it before we quote and put the expected delivery date on your quote, so you know where you stand before you pay.
Can I buy the RMC4 without installation?
Yes. We supply Crestron to end users, with or without installation. Like most Crestron devices of this type, it needs setting up or programming before it works in a system, and we can quote for that too.
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