DIO-0808RN-USB Digital I/O USB I/O unit 8ch/8ch
DIO-0808RN-USB Digital I/O USB I/O unit 8ch/8ch
DIO-0808RN-USB Digital I/O USB I/O unit 8ch/8ch
  • SKU: Digital I/O USB I/O unit 8ch/8ch
  • Availability: In Stock Many in stock Out of stock BUILT TO ORDER - SHIPS IN 2 - 6 WEEKS

DIO-0808RN-USB Digital I/O USB I/O unit 8ch/8ch

Shipping calculated at checkout.

    This USB2.0-compliant digital I/O unit extends digital signal input from the PC USB port and the output signals to SPDT relay contacts. This USB digital I/O unit is compatible with input digital signals at 12 - 24VDC, and features 8 channels of Optocoupler isolated inputs (compatible with current sink output/current source output) and 8 channels of SPDT relay outputs with independent common.

    Compact design with no installation restrictions (188.0(W) x 78.0(D) x 30.5(H)) makes it easy to install the unit within the panel or device using DIN rail mounting jigs, or on the floor or wall.

    Windows driver library is supplied. It can be used as a data recording device for LabVIEW, with dedicated libraries.


    Model Online Model
    Number of input signal points 8 points (1 common)
    Input format 4ch
    Input format Opto-isolated input (Compatible with current sink / current source output) (Negative logic *1)
    Input resistance 4.7 kΩ
    Input ON current 2.0mA or more
    Input OFF current 0.16mA or less
    Response time Within 200µsec within *2
    Dielectric strength 500Vrms
    Dielectric strength *5 12 - 24VDC (±10%)


    Model Online Model
    Number of output signal points 8 channels (independent common)
    Output format SPDT Relay Output (Form C)
    Max. rating capacity of Relay Contact 6A 240VAC, 5A 28VDC (load resister)
    Max. permitted voltage of Relay Contact 240V (Max.) *7, *8
    Max. Carry Current of Relay Contact 5A (Max.)
    Contact resistance (Initial state) of Relay Contact 100mΩ max.
    Operate time of Relay Contact Within 10ms
    Release time of Relay Contact Within 5ms
    Mechanical Life Expectancy of Relay Contact 10,000,000 operations min or more Switching times : 300 operations/min
    Electrical Lifetime of Relay Contact 50,000 operations min. Switching times : 30 operations/min
    Relay Type of Relay Contact G6RL-1


    Model Online Model
    Bus specification USB Specification 2.0/1.1standard
    USB transfer rate 12Mbps (Full-speed), 480Mbps (High-speed) *3
    Power supply Bus power

    Common section

    Model Online Model
    Number of terminals used at the same time 127 terminals (Max.) *4
    Current consumption (Max.) 5VDC 430mA
    Operating conditions *6 0 - 50ºC, 10 - 90% RH (No condensation)
    Allowable distance of signal extension Approx. 50m (depending on wiring environment)
    Physical dimensions (mm) 188.0(W)×78.0(D)×30.5(H) (No protrusions)
    Weight 300g (Not including the USB cable, attachment)
    Connector 10 pin (screw-terminal) plug header x4
    Attached cable USB Cable 1.8m
    Notes *1 Data “0” and “1” correspond to the High and Low levels, respectively.
    *2 The Optocoupler's response time comes.
    *3 This depends on the PC environment used (OS and USB host controller).
    *4 As a USB hub is also counted as one device, you cannot just connect 127 USB units.
    *5 External circuit power supply is required.
    *6 To suppress the heating, ensure that there are spaces for ventilation (about 5cm) around this product.
    *7 Please don’t exceed either max. permitted voltage or max. rating capacity of the use relay when using it by the voltage that exceeds 28VDC. Doing so can cause a malfunction.
    *8 The potential difference between channels must not exceed 240V in the maximum. Doing so can cause a malfunction.

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    Online Form

    Email: eShop@us.contec.com

    Phone: +1 321 728 0172

    Contec Americas Inc. currently offers easy online ordering for customers in the United States. Customers wishing to ship internationally can place an order by contacting us by phone +1 (321) 728-0172 or by email at eShop@us.contec.com to place an order. 


    Availability*  Time to Ship
    In Stock Shipped within 1-3 business days.
    Built to Order

    Shipped within approximately 2 to 6 weeks.

    Processing time may vary based on component availability and market conditions. A Contec Americas representative will contact you via email or phone to confirm the lead time of your order within 2 business days after your order is placed.  If you are not satisfied with the lead time provided, we will provide a full refund of your order.


    *Product availability is visible on the product page above the product description and below the SKU. First, select the desired quantity and configuration options (if applicable). The product availability field will update based on your selections. 


    Image: Product Availability Field Location


    Please allow additional days in transit for delivery based on your shipment method. If there will be a significant delay in the shipment of your order, we will contact you via email or telephone.

    Contec Americas Inc. ships to verifiable business addresses within the U.S., U.S. Territories.  We do not ship to P.O. Boxes or APO/FPO addresses.

    Shipping and delivery dates are not guaranteed. Orders can be delayed because of payment, billing, or shipping verification in order to prevent fraudulent credit card transactions. Tracking numbers will be sent to the customer when the order has shipped. Orders are not shipped or delivered on weekends or holidays.  Shipping charges are non-refundable.

    Shipping Damage

    Contec Americas, Inc. is not liable for any products damaged or lost during shipping. If you received your order damaged, please contact the shipment carrier to file a claim.

    Please save all packaging materials and damaged goods before filing a claim.

    Customs, Duties and Taxes

    Contec Americas Inc. is not responsible for any customs and taxes applied to your order. All fees imposed during or after shipping are the responsibility of the customer (tariffs, taxes, etc.).

    Complete Contec Catalog

    The Contec Americas eShop represents a limited selection of our extensive catalog of more than 800 products. We are pleased to offer both domestic and international customers technical consultations, quotes and volume pricing from our U.S. office. For qualified customers, we accept purchase orders and offer net terms.  For more information, or to request a quote for a volume order, please contact us at eShop@us.contec.com or call us at +1 (321) 728-0172. Our complete catalog is available on our global website at www.contec.com.


    For questions or comments regarding this policy, please contact us at eShop@us.contec.com.