48-Bit OPTO-22 DIO Board


48-Bit OPTO-22 DIO Board

  Price:  $179.00  

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We ship via UPS and fastest delivery is with Next Day Air. UPS Next Day Air Early typically gets their product to them as early as 8am, Next Day Air gets their product typically there by 10:30am and Next Day Air Saver typically by 3pm. We ship same day for in stock items and the lead time is up to one week for out of stock items. Delivery is dependent on UPS and your shipping method.


The DIO-48 provides 48 TTL digital I/O lines, and one 16- bit counter . The DIO-48 emulates 8255 mode 0 and has an increased output current of 15 mA (source) and 64 mA (sink) , allowing it to control LED, relay, etc. The DIO-48 consists of six 8-bit bi-directional ports and 3 input lines for interrupt enable and counter. The 8-bit ports are named port A(PA),port B(PB) and port C(PC). The port C can be split into two four bit. All ports are configured as inputs as inputs upon power-up or reset. The base address is selectable from 200 to 3FF hex. The interrupt signal can be connected to any of the interrupt levels 2 through 7.

  • Connects directly to DB-24P,DB-24R,DB-24PR,DB-885B ,or any OPTO-22 compatible daughter board
  • 48 digital I/O lines
  • One 16-bit counter
  • IRQ Level : IRQ3 ~ IRQ15
  • Interrupt Trigger by Event / Timer / Port C3 , C7
  • Clock Source can be setting : RTC (32.768 k)/1 M/2 M/4 MHz
  • Emulate two industrial-standard 8255 mode 0
  • Two 50-pin flat cable connector
  • Output status read back


  • Factory automation
  • Product test
  • Test automation
  • Digital I/O control
  • Alarm monitoring
  • 4-channel SSR Output Daughter Board


  • DOS sample program(with source codes)
  • DLL and OCX SDK for Windows 98/NT/2000
  • DLL and OCX SDK for 32-bit Windows XP/2003/Vista/7
  • VB/VC/Delphi/BCB sample programs with source codes are included
  • LabVIEW toolkit for Windows
  • Driver for Linux and DasyLab


Digital Input
Channels 48 (OPTO-22 compatible)
Compatibility 5 V/TTL
Input Voltage Logic 0: 0.8 V max.
Logic 1: 2.0 V min.
Response Speed 1.0 MHz (Typical)
Digital Output
Channels 48 (OPTO-22 compatible)
Compatibility 5 V/TTL
Output Voltage Logic 0: 0.4 V max.
Logic 1: 2.4 V min.
Output Capability Sink: 0.8 mA @ 0.8 V
Source: -2.4 mA @ 2.0 V
Response Speed 1.0 MHz (Typical)
Channels 3 independent
Resolution 16-bit
Input Frequency 10 MHz max.
Clock Source 32.768 kHz/2 MHz/4 MHz
Bus Type ISA
I/O Connector 50-pin box header x 2
Dimensions (L x W x D) 159 mm x 120 mm x 22 mm
Power Consumption 900 mA @ +5 V
Operating Temperature 0 ~ 60 °C
Storage Temperature -20 ~ 70 °C
Humidity 5 ~ 85% RH, non-condensing

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