Applications  | 
  |   Industrial ON/OFF control
  |   Digital I/O control
  | 
  |   Contact closure monitoring
  |   Industrial and lab automation
  | 
  |   Switch status sensing
  | 
Features  | 
  |   48 digital I/O lines emulate two 82C55A PPIs
  |   FPGA based design
  | 
  |   16 extra nibble programmable digital I/O
  |   EXT/INT irq trigger, programmable irq number
  | 
  |   Dual 50-pin connectors for OPTO22 compatible module racks
  | 
  |   Circuit diagram provided for potential customer to field change
  | 
Specifications (With Matched Wiring Board)  | 
  | Main Card -- Power Requirement  | 
  |   Power supply range : 5Vdc
  |   Power consumption : 50mA @5V
  | 
  | Main Card -- Input Section (@Vcc=4.5V)  | 
  |   Logic high voltage : 3.15V(min)
  |   Input high current : 1uA(max)
  | 
  |   Logic low voltage : 1.35(max)
  |   Input low current : -1uA(max)
  | 
  | Main Card -- Output Section (@Vcc=4.5V)  | 
  |   Logic high voltage : 3.84V(min) @6mA load
  |   Output high current : -35mA(max)
  | 
  |   Logic low voltage : 0.33V(min) @6mA load
  |   Output low current : 35mA(max)
  | 
  | Main Card -- Interrupt  | 
  |   Mode : INTernal / EXTernal
  |   Trigger in : PC00 / PC10
  | 
  |   Enable/Disable : PC04 / PC14
  |   Irq no. : irq2-irq7, jumper selectable
  | 
  | Main Card -- General  | 
  |   Operation temperature : 0 to +70 degree C
  |   Operation humidity : 5~95% RH, non-condensing
  | 
  |   Storage temperature : -20 to +80 degree C
  |   Dimensions: 90(W)*96(H) mm, 3.6(W)*3.8(H) in
  |