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Expand your INSTEON Network to monitor and control low voltage and contact closure devices
 IOLinc - INSTEON Low Voltage / Contact Closure Interface
I/O Linc - INSTEON Low Voltage / Contact Closure Interface ( 1 In / 1 Out )
Click for larger image and other views
I/O Linc Applications Sprinkler Control Diagram HouseLinc Screenshot
Projector Screen Control Diagram Door strike Control Diagram Garage Door Control Diagram
Control Lighting from a Security System
I/O Linc - INSTEON Low Voltage / Contact Closure Interface ( 1 In / 1 Out )
Item# 2450
Price: $45.99
Free shipping on orders over $175 - See Details


  • Monitor and control pool valves, electric door strikes, garage doors and more using your INSTEON or X10 network
  • 4 output relay modes allow you to control many different types of devices
  • Control INSTEON lights and appliances using standard sensors
  • Contains 1 sensor input and 1 output relay (NO/NC)
  • Award-winning INSTEON technology provides superior performance and reliability

Essential Info

The latest INSTEON plug-in module, I/O Linc, lets you monitor and control any low voltage devices such as alarm sensors, electric door strikes, and contact closures as part of your INSTEON home automation network. With one dry-contact sensor input you can control many INSTEON devices throughout the house. Plus, use the built-in single-pole double-throw (SPDT) switch, connect any low voltage-powered device for continuous or momentary operation. Create your own remote-control door lock using an electric door strike and power supply or use a security sensor turn INSTEON controlled lights on or off. I/O Linc is also backward-compatible with X10.

Required Accessories
Sensor wire: 16 - 28 gauge wire fits, but 20 - 22 gauge recommended

I/O Linc Kits Available:
  • I/O Linc - INSTEON Door / Window Sensor Kit
  • I/O Linc - INSTEON Telephone Alert Kit
  • I/O Linc - INSTEON Remote Control Door Strike Kit
  • I/O Linc - INSTEON Garage Door Control & Status Kit
  • I/O Linc - INSTEON Remote Chime Alert Kit
  • I/O Linc - INSTEON Indoor/Outdoor Photobeam Entry Alert Kit
  • I/O Linc - INSTEON to Somfy RF Drape Control Kit
  • I/O Linc - INSTEON Freezer Failure Sensor Kit
  • I/O Linc - INSTEON High and Low Temperature Threshold Kit
  • I/O Linc - INSTEON Freeze Sensor Kit
  • I/O Linc - INSTEON Doorbell and Telephone Ring Alert Kit
  • I/O Linc - INSTEON RF Proximity Reader Kit
  • I/O Linc - INSTEON Rain Sensor Kit
  • I/O Linc - INSTEON Keypad Control Kit
  • I/O Linc - INSTEON Audio / Video Detector Probe Kit

  • Manuals/Software

    What's Included

  • I/O Linc
  • 1.5mm flathead screwdriver
  • Quick-Start Guide
  • More Info

    I/O Linc's flexible output relay can control many different types of low voltage devices, from pool valves to electric door strikes to garage doors due to its different relay modes. When controlling devices like pool valves, you will want the ability to leave it on for an extended period of time, giving it plenty of time to fill the pool. As it approaches the desired water level, then you can remotely turn it off. For devices like electric door strikes, set I/O Linc's output relay to momentary, allowing you open the front gate using a RemoteLinc or any other INSTEON controller. A third version of I/O Linc's momentary mode allows you to remotely press your garage door button with an INSTEON On command, but only if your garage is currently closed. This allows you to open your garage with On command and close it with an Off command. Because I/O Linc uses a garage door sensor to know whether the door is open or closed, it only controls the garage when it needs to.

    Controlling Two Separate Loads
    With the addition of a DPDT Relay Board, the I/O Linc is capable of switching two separate loads on and off together. In this configuration, the I/O Linc could control two different loads of varying voltages (i.e. one high voltage and one low voltage load) or two higher current loads (up to 7A @30VDC each).

    Certifications and Warranty
    All I/O Linc products are safety approved. The factory for SmartLabs Design Products is ISO9001 certified. Because of this passion for quality, Smarthome stands behind the entire I/O Linc line of products with a full 2-year warranty.



    Manufacturer Product No.:2450, I/O Linc
    Patent No.:U.S. Patent No. 7,345,998, International patents pending
    Warranty:2 years, limited
    Status LED:White (Bright when relay closed, dim when relay open)
    Sensor Status LED:Green (On when sensor closed, Off when sensor open)
    Set Button:Toggles output relay On/Off. Also used for setup.
    Momentary Duration: Adjustable, 2 - 105 minutes
    Operation Modes:INSTEON only, X10 only, INSTEON and X10 Combo Mode
    Combo Mode Message Order:INSTEON, INSTEON confirmation, X10
    Multi-Way Circuit Support:Yes
    Setup Memory:Non-volatile EEPROM
    INSTEON Features
    INSTEON Addresses:1 hard-coded out of 16,777,216 possible
    INSTEON Links:417
    INSTEON Powerline Frequency:131.65 KHz
    INSTEON Minimum Transmit Level:3.2 Vpp into 5 Ohms
    INSTEON Minimum Receive Level:10 mV
    INSTEON Messages Repeated:Yes
    I/O Terminals:5V (10mA), GND, Sense, N/C, N/O, Common (28-16 gauge wire)
    Input jack:1/8" mini jack input (GND, Sense)
    Input Type:Contact closure only
    Output Relay Capacity:5A @ 30 Volts (AC or DC)
    Operating Conditions:Indoors, 32 to 104°, up to 85% relative humidity
    Dimensions:4.5" H x 2.5" W x 1.5" D
    Weight:4.6 oz
    Supply Voltage:120 Volts AC +/- 10%, 60 Hertz, single phase
    Sensor Input:1/8" mini jack input (GND, Sense)
    Power Plug :3-pin grounded
    Pass-through Outlet:Uncontrolled 3-prong (with ground), 120V, 15A
    Power Consumption:0.93 Watts
    Certification:Safety tested for use in USA and Canada
    X10 Features
    X10 Primary Address:Two optional (comes unassigned). One for input, one for output


    I/O Linc Applications  Sprinkler Control Diagram  HouseLinc Screenshot  Projector Screen Control Diagram 
    I/O Linc Applications  Sprinkler Control Diagram  HouseLinc Screenshot  Projector Screen Control Diagram 
    Door strike Control Diagram  Garage Door Control Diagram  Control Lighting from a Security System   
    Door strike Control Diagram  Garage Door Control Diagram  Control Lighting from a Security System   


    238 Ratings
    5 star: 60%  (143)
    4 star: 21%  (50)
    3 star: 10%  (23)
    2 star: 3%  (6)
    1 star: 7%  (16)
    Average Customer Rating
    (238 customer ratings)
    Share your thoughts with other customers
    WILLIAM -- arlington, TX   3/24/2014
    I did have one go bad on me, but this is a great device that I use to open/close the garage door and make sure it's closed when I'm away. Also convenient when someone else needs in my house and I'm not around.
    RICARDO -- north miami, FL   3/24/2014
    Works as advertised. However this is the second unit that I had to replace because of failure after the 2-year warrantly expires!
    GEORGE -- petaluma, CA   1/6/2014
    Works great, just put in the Address into the ISY new insteon devices.
    DONALD -- shawnee, KS   1/3/2014
    Worked well with the dusk/dawn sensor. I use it to sense dark days (very cloudy/stormy) to turn on my sunset program on my ISY.
    KEITH -- midvale, UT   12/30/2013
    This is the third I/O Linc that I have installed in my home. They all work exactly as described in literature once I figured out how to program correctly.
    KELLY -- katy, TX   12/14/2013
    Easy to program with the hub or HL. Great device with lots of potential uses. Using a few of these to remotely control fireplace, garage door status & open/close, and to shut-off automatic sprinklers.
    JAMES -- burke, VA   11/20/2013
    Using this to power on my subwoofer from the DC trigger on my Power Amp. The I/O Linc replaces an x-10 interface module used to trigger an appliance module. This is fast and reliable where the x-10 was slow and worked only half the time. The RF link between modules overcomes PLC reliability issues due to the many power supplies in my media installation. Unlike the x-10 interface module, this unit only accepts a contact closure as a trigger. I had to add a reed relay between the power amp. DC output and the I/O Linc to allow for this requirement. This unit should be designed to allow low voltage DC input in addition to contact closure.
    RICHARD -- oxford, GA   11/18/2013
    Haven't installed yet, but don't expect any problem. Instructions very clear.
    KATABATIC -- natick, MA   10/31/2013
    I like this device. It is flexible, reliable and easily programmed. I have 4 of them handling contact closure applications and they all work well
    ROBERT -- cocoa beach, FL   10/4/2013
    I substituted the I/O Link module for a combination of an X10 Powerflash & Universal Module. It seems to be holding up pretty well. It is a little more difficult to set up. But it is more versatile and thus more complicated. The I/O link appears to be working out well for us.
    KENNETH M. -- acton, ME   8/18/2013
    Works great
    RANDY -- eagle, ID   8/15/2013
    Item arrived very quickly and works as expected.
    FRANK -- aurora, CO   7/31/2013
    This is an excellent product with a host of applications and features. It is well built and is very reliable.
    JAMES -- miami, FL   7/7/2013
    Used it for garage opener with my cellphone. Works great, just as I thought it would.
    JEFF -- clearwater, FL   7/2/2013
    Purchased four, one died within a few months. Relay stopped working. Exchanged under warranty. Others are working fine.
    DWIGHT -- wauconda, IL   6/20/2013
    Works OK but cannot be added to the Smart Phone Check In feature with the HUB.
    Newbully -- Wisconsin   6/19/2013
    I bought this item after I had installed seven dimmers. I had the habbit of leaving my garage door open, even when I went on 5 day business trips. Nothing happened, but still. My neighbor would send me pictures of the open door and then hit the switch inside and run real fast. Now, with the use of the ISY99 my door closes two hours before sundown if it was open. Ith the use of Panasonic IP cams I can let know individuals in my house by controlling the door remotely on my Android phone without giving them any codes. I used another module to monitor my daughters room windows in the summer. Now they can be 50% open for air circulation. If someone opens the window further without my consent, very loud piezo buzzers and all outside lights will turn on and the IP cam will take follow the intruder, until I do. The video can be sent to the local police for evidence within minutes. So I am waiting for the day a boyfriend tries to sneak in.
    sambo -- pasadena, CA   4/23/2013
    I bought 1 of these and both have stopped working after a couple months. Insteon seems to be riddled with quality issues. I will never buy Insteon again.
    BILL -- carmichael, CA   4/12/2013
    I used this to extend the control of an existing switch for its switched wall outlets. To the existing switched outlet, I added an old 12VDC laptop power supply, connected to the coil of a reed relay from FRY's. The normally open contacts connected to the INSTEON 2450, which sends the on/off commands to X10 lamp modules across the room. This save hundreds of dollars to get the remote outlets wired to the wall switch.
    DOUG -- rcho sta marg, CA   4/4/2013
    Love the product however I have quality concerns... this is my second purchase of the unit as my first one just died. This always seems to happen months after warranty expiration. I have gone through three SmartLinc's as well due to failure over time.


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