Isolated Digital Input/Output Cards

Main Features:

  • Universal PCI, PCI-X, 3.3V and 5V compatible (Call for PCI-Express availability)
  • Eight or sixteen optically isolated, non-polarized digital inputs
  • Eight or sixteen electro-mechanical relay outputs
  • Opto-isolated channel to channel and channel to ground
  • Can detect input state change and assert interrupt
  • Automatically detected under Windows




Digital Inputs:

  • Number of inputs: 8 (PCI-IIRO-8) or 16 (PCI-IIRO-16)
  • Type: Non-polarized, optically isolated from each other and from the computer. (not TTL/CMOS compatible)
  • Voltage Range: 5 to 24V DC or AC (50 to 1000 Hz)
  • Isolation: 500V*(see manual) channel to channel and channel to ground
  • Input Resistance: 470 ohms in series with two diodes and an LED
  • Response Time: 10 mSec w/filter, 20 uSec w/o filter


Relay Outputs:

  • Number of outputs: 8 (PCI-IIRO-8) or 16 (PCI-IIRO-16)
  • Contact Rating: 2A carry current, bifurcated, gold clad, silver palladium
  • Contact Arrangement: Channels 0-4 are SPDT Form C and channels 5-7 are SPST Form A. For PCI-IIRO-16, channels 8-12 are SPDT Form C and channels 13-15 are SPST Form A
  • Contact Rating: Initial 100 milliohms maximum
  • Contact Life: mech'l: 5 million operations minimum; elect'l: 5 million operations minimum at full load
  • Operating Time: 2 milliseconds maximum
  • Release Time: 1 milliseconds maximum
  • Regulatory Approvals: UL and CSA




  • When enabled by software, interrupts are generated when digital inputs change state.


Power Required:

  • +5VDC @ 0.675 A (all relays ON) for PCI-IIRO-8, or @ 0.750 A (all relays ON) for PCI-IIRO-16




  • Ambient PCI-IIRO-16 Temperature: Operating: 0 to +70°C Optional Industrial Version Operating: -30 to +70°C
  • Ambient PCI-IIRO-8 Temperature: Operating 0 to +55°C Optional Industrial Version Operating: -25 to +55°C
  • Storage: -40 to +85°C
  • Humidity: 0 to 90 percent (non-condensing)
  • Weight: Approx. 8 oz. (227 grams) for PCI-IIRO-8, approx. 12 oz. (340 grams) for PCI-IIRO-16
  • Size: PCI-IIRO-8 is 6.15" (156 mm) long, PCI-IIRO-16 is 6.8" (173mm) long



Regulatory Compliance:

  • This product is 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.