SIS9965 USB2.0 based digital I/O card with FPGA

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The SIS9965 was developed as interface/monitoring module for industrial applications. It is used in the SIS Rollmark detector for shaft encoder supervision and digital I/O e.g. The on board FPGA allows the use of custom firmware for demanding applications.

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SIS9965 photograph


  • C-rail/standalone mount
  • USB2.0
  • 8 channels of 24V Digital Inputs (opto-decoupled), input range 12V to 30V
  • 8 channels of 24V Digital Outputs (opto-decoupled) , >50mA active source
  • 4 channels of TTL Inputs (high impedance)
  • 4 channels of TTL Outputs (standard TTL)
  • 4 channels of TTL 50 Ohm Inputs
  • 4 channels of TTL 50 Ohm Outputs
  • 4 channels of RS422 Inputs A+/A-, B+/B-, Z+/Z-, Reserve+/- (opto-decoupled)
  • 1 channel RS422 Output (e.g. Clock Out) (opto-decoupled)
  • Xilinx FPGA
  • +5V supply, +24V depending on external ciruitry
  • In field JTAG firmware upgrade capability
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