MD64-PCI provides an interface between PCI bus (IBM PC) and systems on discrete channels (discretes).

• Amount of used I/O ports (interruptions): 4 (1);
• 32 output channels of discretes (16-TTL + 16 - "switch on case");
• 32 input channels of discretes (16-TTL + 16 - "switch on case");
• 8 interruptions from input discretes (TTL);
• 8 interruptions from input discretes ("switch on case");
• Input discretes parameters (TTL type):
  -No signal: -0,1V < Uin < +0,4V or open;
  -True signal: +2,4V < Uin < +5,5V;
  
• Input discretes parameters ("switch on case"):
  -No signal: 2,4V < Uin < 35V or open;
  -True signal: Uin=(0,22+/-0,22)V;
  
• Output discretes parameters (TTL type):
  -No signal: 0V < Uol < +0,4 at Io < 24mA;
  -True signal: +2,4V < Uoh < +5V at Io < 24mA;
  
• Output discretes parameters ("switch on case"):
  -No signal: Uoh < 35V (OFF condition);
  -True signal: Uol < 0,7V at Io < 20mA (OFF condition);
  
• Supply Voltage: +5V, +/-5%;
• Supply Current: < 250 mA;
• The external connector of card: socket DHDPRS-78F;