USB Isolated Input and Solid State Relay Output Digital I/O Modules

Main Features:

  • High-speed USB 2.0 device, USB 3.0 and 1.1 compatible
  • 16 individually optically isolated inputs (channel to channel and channel to ground)
  • Polarity insensitive AC/DC inputs accept up to 31 VDC or AC RMS
  • Jumper selectable filtering per input channel for AC or voltage transients
  • 16 optically isolated fully protected high-side FETs capable of switching up to 2A
  • Internal removable screw terminal board for easy wiring
  • All power drawn from USB port, no external power adapter required
  • USB/104 form-factor for OEM embedded applications
  • Small, (4" x 4" x 1.4") rugged industrial enclosure
  • Custom high-speed function driver
  • PC/104 module size and mounting compatibility
  • Type B USB connector features industrial strength and high-retention design
  • Now with Firmware 2.0 features!
  • Onboard Watchdog Timer, configurable power-on defaults, digital input debouncing and latching, digital output Pulse Width Modulation (PWM) and Matrix Mapping


Factory options:

  • Input only and solid state output only versions
  • Eight or four input/output versions
  • External power for high current capabilities
  • Extended temperature and DIN rail mounting provisions
  • OEM version (board only) features PC/104 module size and mounting compatibility
  • RoHS available. Please contact us for ordering information




Isolated Inputs:

  • Number: Sixteen
  • Type: Non-polarized, optically isolated from each other and from the computer (CMOS compatible)
  • Voltage: 3 to 31 DC or AC RMS (40 to 10000 Hz)
  • Isolation: 500V* (see manual) channel-to-ground and channel-to-channel
  • Resistence: 1.8K ohms in series with opto-coupler
  • Filter Response: Rise Time = 4.7 mS / Fall Time = 4.7 mS
  • Non-Filter Response: Rise Time = 10 uS / Fall Time = 30 uS


Isolated FET Outputs:

  • Number: Sixteen Solid State FETs
  • Output Type: High Side Power MOSFET Switch. Protected against short circuit, over-temperature, ESD, and can drive inductive loads.
  • Voltage Range: (customer supplied) 5-34VDC recommended for continuous use, 40VDC absolute max.
  • Current Rating: 2A maximum
  • Turn-on time: 90uS (typical)
  • Turn-off time:110uS (typical)

Bus Type:

  • Universal Serial Bus: USB 2.0 high-speed, USB 1.1 full-speed compatible



  • Operating Temperature Range: 0° to 70°C
  • Storage Temperature Range: -40° to +85°C
  • Humidity: Maximum 90% RH, without condensation
  • Board Dimension: 3.550 x 3.775 inches
  • Box Dimension: 4.00 x 4.00 x 1.4 inches



  • +5VDC provided via USB bus cable up to 500mA**
  • +5V @ 35mA typical (all FETs off, add 5mA per FET)
  • +5V @ 115mA typical (all FETs ON)

**Optional on-board external power circuitry and AC/DC adapter can be ordered (“-P” option) if current use is expected to be greater than what can be supplied by the USB bus. Please check to see how much current your USB port can supply and how much current you anticipate using.


Regulatory Compliance:

  • This product is designed to be in full compliance with CE requirements.







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Contact Details

EPS-Tech Ltd.

Industrial park, Tzur-Igal
2 Bazelet St,

Israel, 44862

Tel: +972-9-749-8585
Fax: +972-9-749-8686
Email: This email address is being protected from spambots. You need JavaScript enabled to view it.