PCI Express Optically Isolated Digital I/O Cards with Change of State Detection

Main Features:

  • 24 optically isolated, non-polarized digital inputs
  • Software configurable filters on inputs for electrically noisy environments
  • Can detect input state change and assert interrupt
  • 24 optically isolated high-side FET switches
  • Opto-couplers rated for 2.5kV isolation
  • Four optically isolated output groups and two optically isolated input groups
  • 8 non-isolated TTL/CMOS I/O lines


Factory Options:


  • Extended temperature operation (-40°C to +85°C)
  • 12-channel version (with 4 TTL I/O) available
  • Input only and output only versions available
  • RoHS compliant version





Isolated Digital Inputs:

  • Number of inputs: 24
  • Type: Non-polarized, optically isolated sharing a common return per 12 channel group (not TTL/CMOS compatible)
  • Voltage Range: 3 to 31V DC or 22 VACrms (40-10kHz)
  • Isolation: Opto-couplers rated at 2.5kV (see manual)
  • Input Resistance: 1.8k ohms in series with two diodes and a photo-coupler LED
  • Response Time: with filter: 4.7 mSec without filter: rise time = 10 uSec fall time = 30 uSec
  • Interrupts: Change of State Detection available on all 32 input bits; software enabled in 8 bit groups; byte-wide pattern recognition


Non Isolated Digital Inputs/Outputs:


  • Number of lines: 8, programmable as all ins or all outs
  • Type: TTL/CMOS compatible, pulled up to 5V via 10k ohms



Solid State FET Outputs:


  • Number of outputs: 24, Isolated in four, 6-channel groups
  • Output Type: Smart High Side Power MOSFET, Fully Protected (short circuit, over-temp., ESD, inductive flyback)
  • Voltage Range: 5-34VDC recommended (40VDC absolute maximum)
  • FET Ratings: On-state resistance = 60mΩ 2A continuous per FET, with a 9A cumulative total per group of 6 FETs





  • Operating Temperature: Commercial 0°C to 70°C, Industrial -40°C to +85°C
  • Storage Temperature: -40°C to +85°C
  • Humidity: 5% to 95%, (non-condensing)
  • Card Dimensions: Standard Height 4.2" (106.65 mm), half-length 6.6" (167.6 mm) long
  • Connector: DB78 Female Mating Connector: AMPLIMITE 1658674-1 or equivalent


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.