By: Crestron
The World's Leader for Advanced Home, Campus & Building Control Automation Solutions
Contact us for lowest price (800) 284-2288, (858) 565-1101,, or fax (858) 300-4193
Control Port Expansion Module

The C2N-IO is a very compact device that adds control ports to any Crestron® 2-Series or 3-Series® control system. It connects via the Cresnet® control network and provides one RS-232, one IR, and two relay control ports. It can be mounted to any flat surface using two screws or adhesive reclosable fastener (3M® Dual Lock® included).


Available Configurations Include:

INET-IOEX-IRCOM infiNET EX® Wireless IR/RS-232 Control Module, includes IRP2 (x2)
INET-IOEX-RYIO infiNET EX® Wireless Relay/Digital Input Control Module
C2N-VEQ4 4-channel Digital Volume Control, 4x4 Matrix Mixer and EQ Module, Cresnet

C2N-IO features include:

  • Fits within a 2-gang wall box behind the TPCS-4SM(D)
  • Provides 1 RS-232, 1 IR/serial, and 2 relay ports
  • Compatible with any Crestron® 2-Series or 3-Series® control system
  • Interfaces via the Cresnet® control bus
  • 24 Volt DC Cresnet powered
  • Surface mount bracket included
  Cresnet® Cresnet slave device, 2-Series and 3-Series® compatible
  RS-232 Supports 2-way device control and monitoring up to 115.2k baud with software handshaking
  IR/Serial Supports 1-way device control via infrared up to 1.2 MHz or serial TTL/RS-232 (0-5 Volts) up to 115.2k baud
  RELAY 1 – 2 (1) 4-pin captive screw terminal block comprising (2) normally open, isolated relays;
Rated 1 Amp, 30 Volts AC/DC;
Solid-state arc suppression across contacts
  COM (1) 3-pin captive screw terminal block, bidirectional RS-232 port;
Up to 115.2k baud; software handshaking support
  IR (1) 2-pin captive screw terminal block, IR/Serial output port;
IR output up to 1.2 MHz;
1-way serial TTL/RS-232 (0-5 Volts) up to 115.2k baud
  NET (2) 4-pin captive screw terminal blocks;
Cresnet slave ports, paralleled
Controls & Indicators
  NET ID (2) rotary switches for manually setting Cresnet ID;
'00' setting enables touch-settable ID (TSID)
  PWR (1) green LED, indicates operating power supplied via Cresnet control network
  NET (1) amber LED, indicates communication with Cresnet system
  SETUP (1) red LED and (1) recessed miniature pushbutton for TSID
Power Requirements
  Cresnet Power Usage 2.5 Watts (105 mA @ 24 Volts DC)
  Temperature 32° to 104°F (0° to 40°C)
  Humidity 10% to 90% RH (non-condensing)
  Heat Dissipation 3.5 BTU/Hr
  Metal, freestanding or surface mount, surface mount bracket and 3M® Dual Lock® reclosable fastener included, fits inside a 2-gang electrical box or 2-gang UK (BS 4662) electrical box, 35 mm (1.38 in) minimum internal box depth required for C2N-IO and TPCS-4SM(D) combined
  Height 2.25 in (58 mm)
  Width 3.50 in (89 mm), 4.38 in (112 mm) with bracket
  Depth 0.83 in (21 mm)
  2.7 oz (75 g)

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Prices and specifications subject to change without notice.