Acces USB-DIO-24, User Manual

Page: 5 / 20

Manual USB-DIO24-CTR6 5
Chapter 1: Introduction
Features

24 lines of digital I/O

High-speed USB 2.0 device, USB 3.0 and 1.1 compatible

Two 8-bit ports and two 4-bit ports each software configurable for input or output

Field selectable CMOS (+5V) or LVTTL (3.3V) Vccio signal levels

CMOS: All 24 I/O lines buffered with 32 mA sink and source

LVTTL: All 24 I/O lines buffered with 24 mA sink and source

Two 82C54 counters with all pins available at I/O connector

Each port field configurable as pull-up, pull-down, or no-bias

Powered via USB cable; optional external power supply for sourcing higher total current

Vccio at connector for general purpose use, protected by polyfuse

Standard 50 pin male IDC header compatible with Industry-Standard I/O Racks such as
Gordos, OPTO22, Potter & Brumfield

PC/104 size (3.550 by 3.775 inches)

Rugged, steel, industrial enclosure (4 by 4 by 1.25 inches)
Applications

Automatic Test Systems

Laboratory Automation

Robotics

Machine Control

Security Systems, Energy Management

Relay Monitoring and Control

Parallel Data Transfer to PC

Sensing Switch Closures or DTL, LVTTL and CMOS Logic

Driving Indicator Lights or Recorders