Master Photo: MC4-R-I, Front Angled View
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MC4-R-I

4-Series™ Control System for Crestron Home® OS, International

Provides a secure, high‑performance, cost-effective control system for use with Crestron Home® OS. A small form factor and low profile installation make it perfect for use in single‑room systems, small to medium‑sized homes, and MDUs (multidwelling units). Provides a built-in gateway for pairing infiNET EX® and ER wireless devices.

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The Crestron MC4‑R‑I provides a secure, high‑performance, cost-effective control system with the embedded Crestron Home® operating system. Its small form factor and versatile mounting options makes it ideal for smaller Crestron Home systems such as single-room systems, small to medium-sized homes, and MDUs (multidwelling units). The MC4‑R‑I comes equipped with a 4‑Series™ multicore CPU processor that delivers remarkable speed and performance while handling the demands of an advanced automated system.

The MC4‑R‑I is a perfect replacement for a PYNG-HUB processor when upgrading a smaller system from Crestron Pyng® OS to Crestron Home.

NOTE: For larger homes and systems that require additional processing power, refer instead to the CP4‑R 4‑Series Control Processor for Crestron Home® OS.

Built-In Crestron Home OS
Crestron Home unlocks the full potential of a smart home. It provides dealers with the ability to deliver a sleek user interface that includes fluid dynamic room controls and new features such as support for multiple homes, favorites, custom access, room image customizations, and more.

Refer to www.crestron.com/crestronhome for more information about Crestron Home and for a list of supported Crestron and third‑party equipment.

Wired and Wireless Device Support
Through a full complement of onboard control ports, the MC4‑R‑I allows Crestron Home to integrate with a wide variety of audio, video, lighting, motorized shades, thermostats, door locks, sensors, security systems, and other equipment. The MC4‑R‑I also provides a built-in infiNET EX® wireless gateway that allows wireless devices to be paired directly to the control system and then added to the Crestron Home system1.

System expansion is made easy using the CEN‑IO series of wired Ethernet and Wi-Fi® network I/O extenders (sold separately), which provide additional COM (CEN‑IO‑COM‑102 and CEN‑IO‑COM‑202), digital input (CEN‑IO‑DIGIN‑104 and CEN‑IO‑DIGIN‑204), IR (CEN‑IO‑IR‑104 and CEN‑IO‑IR‑204), or relay (CEN‑IO‑RY‑104 and CEN‑IO‑RY‑204) ports for integration with all kinds of third‑party equipment.

BACnet Support
Native support for the BACnet™ communication protocol provides a direct interface to third-party building management systems over Ethernet, simplifying integration with HVAC, security, and other systems. Using BACnet, each system runs independently but communicates together on one platform.3

PoE Network Powered
Using PoE technology, the MC4‑R‑I gets its operating power directly through the LAN wiring, eliminating the need for a local power supply or dedicated power wiring. A PoE injector (PWE‑4803RU) simply connects in line with the LAN cable at a convenient location. Crestron PoE switches (CEN‑SW‑POE-5 or CEN‑SWPOE‑16) may also be used to provide a total networking solution with built-in PoE. All PoE injectors and switches are sold separately.

NOTE: Ethernet speed is limited to 100 Mbps when using the PWE-4803RU.

Versatile Mounting Options
The MC4‑R‑I mounts conveniently to a wall, ceiling, or other flat surface. Its compact, surface-mountable form factor fits easily behind a flat panel display, beneath a tabletop, or inside other furniture, making it ideal for single-room systems. It can even be installed into an equipment rack using the included rack ears or can be attached to a single rack rail.

 
Key Features
  • Compact 4‑Series™ control system designed exclusively for Crestron Home® OS
  • 2 GB SDRAM and 8 GB Flash Memory
  • 4‑Series multicore CPU processor delivers remarkable speed and performance
  • Communicates with the Crestron Home Setup App for system configuration and the Crestron Home App for system control
  • Ideal for single-room solutions, small to medium-sized homes, and MDUs (multidwelling units)
  • Capable of handling systems with hundreds of devices
  • Integrates control and monitoring of audio, video, lighting, shades, thermostats, door locks, sensors, and other devices
  • Includes built‑in IR, COM, I/O, relay, Cresnet® network, and high‑speed gigabit Ethernet control ports
  • Built-in infiNET EX® wireless network gateway
  • Native BACnet™ network/IP support
  • Enterprise‑class network security
  • PoE (Power over Ethernet) powered
  • Rack or surface mountable
  1. The Cresnet® network port and infiNET EX® transceiver are strictly for use with specific Crestron® devices that work with Crestron Home® OS. For a list of compatible devices, visit www.crestron.com/crestronhome.
  2. The total range of an infiNET EX wireless network is dependent on the placement and capabilities of each network device. A mesh network topology is employed so every “EX” device on the network acts as a routing node or “expander,” which relays the signals it receives on to other EX devices within range. This effectively extends the total range of the network and provides multiple redundant signal paths for extra reliability. A maximum of six “hops” across routing nodes is allowed, although a maximum of three is recommended. Battery-powered infiNET EX devices only operate as leaf nodes and do not provide expander functionality. Up to 100 infiNET EX devices are permitted, although best practices suggest a limit of 50. Up to 15 external gateways (CEN‑GWEXER sold separately) may be added to support additional devices (RF conditions allowing). Refer to the Installation and Setup of Crestron RF Products Best Practice Guide (Doc. 6689) for additional guidelines.
  3. Up to 500 BACnet objects are supported out of the box with no licensing required.

This product may be purchased from select authorized Crestron dealers and distributors. To find a dealer or distributor, please contact the Crestron sales representative for your area. A list of sales representatives is available online at www.crestron.com/How-To-Buy/Find-a-Representative or by calling 855‑263‑8754.

This product is covered under the Crestron standard limited warranty. Refer to www.crestron.com/warranty for full details.

The specific patents that cover Crestron products are listed online at patents.crestron.com.

Certain Crestron products contain open source software. For specific information, please visit www.crestron.com/opensource.

Crestron, the Crestron logo, 4-Series, Cresnet, Crestron Home, Crestron Pyng, and infiNET EX are either trademarks or registered trademarks of Crestron Electronics, Inc. in the United States and/or other countries. BACnet is either a trademarks or a registered trademark of American Society of Heating, Refrigerating and Air‑Conditioning Engineers, Inc. in the United States and/or other countries. microSD is either a trademark or a registered trademark of SD-3D, LLC in the United States and/or other countries. Wi-Fi is either a trademark or registered trademark of Wi-Fi Alliance in the United States and/or other countries. Other trademarks, registered trademarks, and trade names may be used in this document to refer to either the entities claiming the marks and names or their products. Crestron disclaims any proprietary interest in the marks and names of others. Crestron is not responsible for errors in typography or photography. Specifications are subject to change without notice. ©2022 Crestron Electronics, Inc.

 
CrestronHome
Wired Communications
Ethernet 100/1000 Mbps, autoswitching, autonegotiating, autodiscovery, full/half duplex, industry-standard TCP/IP stack, UDP/IP, CIP, DHCP, SSL, TLS, SSH, SFTP (SSH File Transfer Protocol), FIPS 140-2 compliant encryption, IPv4 or IPv6, HTTPS web server, SMTP email client
Cresnet® Network Cresnet server mode1
USB Supports USB mass storage class devices via the rear panel USB 2.0 host port
RS-232 For 2-way device control and monitoring, COM port supports RS‑232 up to 115.2k baud with software handshaking
IR Supports 1‑way device control via infrared up to 1.2 MHz
BACnet™ network/IP Supports up to 500 BACnet objects3
Wireless Communications1
RF Transceiver infiNET EX® network 2-way RF, 2.4 GHz ISM Channels 11-26 (2400 to 2483.5 MHz), default channel 15; IEEE 802.15.4 compliant
Range 15 m (50 ft) to nearest mesh network device(s), subject to site-specific conditions and individual device capabilities, range between floors or ceilings is limited to one level2
NOTE: Do not rack mount or stack multiple units when using wireless communications. Use care when positioning the device to avoid interference from nearby RF devices, obstructions, and metal surfaces.
Memory
SDRAM 2 GB
Flash 8 GB
Memory Card Supports microSD® cards up to 32 GB (4 GB included)
External Storage Supports USB mass storage devices up to 1 TB
Connectors and Card Slots
MEMORY (1) microSD memory card slot;
Accepts one microSD card up to 32 GB for storage of log files;
4 GB microSD card included
G (1) 6-32 screw;
Chassis ground lug
USB (1) USB Type-A connector, female;
USB 2.0 port for storage devices
IR IN

(1) 3.5 mm TRS mini phone jack;
For connecting CNXRMIRD IR receiver;
Allows IR wireless control from Crestron and third‑party remotes using RC‑5 IR commands
RELAY (1–2) (1) 4-pin 3.5 mm detachable terminal block;
Comprises (2) normally open, isolated relays;
Rated 1 Amp, 30 VAC/VDC;
MOV arc suppression across contacts
VER SI (1–2) (1) 3-pin 3.5 mm detachable terminal block;
Comprises (2) Versiport digital input/output or analog input ports (referenced to GND);
Digital Input: Rated for 0–24VDC, input impedance 20k Ω, logic threshold >3.125V low/0 and <1.875V high/1;
Digital Output: 250 mA sink from maximum 24VDC, catch diodes for use with real world loads;
Analog Input: Rated for 0–10VDC, protected to 24VDC maximum, input impedance 21k Ω with pull-up resistor disabled;
Programmable 5V, 2k Ω pull-up resistor per pin
COM  (1) 3-pin 3.5 mm detachable terminal block;
Bidirectional RS-232 port;
Up to 115.2k baud; software handshaking support
IR (1–4) (2) 4-pin 3.5 mm detachable terminal blocks;
Comprises (4) IR output ports;
IR output up to 1.2 MHz;
1-way Serial TTL/RS-232 (0–5V) up to 115.2k baud
4 IRP2 IR emitters included, additional emitters sold separately
EX/ER (1) Connection for supplied antenna
CRESNET (1) 4-pin 3.5 mm detachable terminal block;
Cresnet server port1;
Outputs power to Cresnet devices;
See "Power" section below for additional details
LAN (1) 8-pin RJ-45 connector, female;
100BASE-T/1000BASE-TX Ethernet port;
PoE (Power over Ethernet) PD (Powered Device) port
Controls and Indicators
PWR (1) Bicolor green/amber LED, indicates operating power is present;
Amber indicates that the device is booting and is not yet ready to operate;
Green indicates that the device is ready to operate
HW-R (1) Recessed push button, initiates hardware reset
SW-R (1) Recessed push button, initiates software reset
ACQUIRE (1) Push button with red LED, used to set up connections with wireless devices
LAN (1) Bicolor green/amber and (1) Amber LEDs;
Green/amber LED indicates Ethernet link status and connection speed;
Amber LED indicates Ethernet activity
Power
Power Source Options PoE (Power over Ethernet)
Power over Ethernet IEEE 802.3at Type 1 (802.3af compatible) Class 0 (12.95 W) PoE Powered Device
Available Cresnet Power 2.5 W
Power Consumption 7 W typical
Environmental
Temperature 5 to 45°C (41 to 113°F)
Humidity 10 to 90% (noncondensing)
Heat Dissipation 24 BTU/hr
Enclosure
Chassis Metal, black finish, with (2) integral mounting flanges; vented top, sides, and bottom
Mounting Freestanding, surface mount, attach to a single rack rail, or 1 RU 19‑in. rack mountable (rack ears included)
Dimensions
Height 27 mm (1.07 in.)
Width 258 mm (10.15 in.)
Depth 130 mm (5.11 in.)
Weight
454 g (1.0 lb)
Compliance
Regulatory Model: M201910001
CE, IC, FCC Part 15 Class B digital device
Click here to search product certificates.
  1. The Cresnet® network port and infiNET EX® transceiver are strictly for use with specific Crestron® devices that work with Crestron Home® OS. For a list of compatible devices, visit www.crestron.com/crestronhome.
  2. The total range of an infiNET EX wireless network is dependent on the placement and capabilities of each network device. A mesh network topology is employed so every “EX” device on the network acts as a routing node or “expander,” which relays the signals it receives on to other EX devices within range. This effectively extends the total range of the network and provides multiple redundant signal paths for extra reliability. A maximum of six “hops” across routing nodes is allowed, although a maximum of three is recommended. Battery-powered infiNET EX devices only operate as leaf nodes and do not provide expander functionality. Up to 100 infiNET EX devices are permitted, although best practices suggest a limit of 50. Up to 15 external gateways (CEN‑GWEXER sold separately) may be added to support additional devices (RF conditions allowing). Refer to the Installation and Setup of Crestron RF Products Best Practice Guide (Doc. 6689) for additional guidelines.
  3. Up to 500 BACnet objects are supported out of the box with no licensing required.

This product may be purchased from select authorized Crestron dealers and distributors. To find a dealer or distributor, please contact the Crestron sales representative for your area. A list of sales representatives is available online at www.crestron.com/How-To-Buy/Find-a-Representative or by calling 855‑263‑8754.

This product is covered under the Crestron standard limited warranty. Refer to www.crestron.com/warranty for full details.

The specific patents that cover Crestron products are listed online at patents.crestron.com.

Certain Crestron products contain open source software. For specific information, please visit www.crestron.com/opensource.

Crestron, the Crestron logo, 4-Series, Cresnet, Crestron Home, Crestron Pyng, and infiNET EX are either trademarks or registered trademarks of Crestron Electronics, Inc. in the United States and/or other countries. BACnet is either a trademarks or a registered trademark of American Society of Heating, Refrigerating and Air‑Conditioning Engineers, Inc. in the United States and/or other countries. microSD is either a trademark or a registered trademark of SD-3D, LLC in the United States and/or other countries. Wi-Fi is either a trademark or registered trademark of Wi-Fi Alliance in the United States and/or other countries. Other trademarks, registered trademarks, and trade names may be used in this document to refer to either the entities claiming the marks and names or their products. Crestron disclaims any proprietary interest in the marks and names of others. Crestron is not responsible for errors in typography or photography. Specifications are subject to change without notice. ©2022 Crestron Electronics, Inc.

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