USB-4751 USB-4751L 48-ch Digital I/O USB Module 24-ch Digital I/O USB Module Features Compatible with USB 1.1/2.0 Portable Bus-powered 48/24 TTL digital I/O lines Emulates mode 0 of 8255 PPI Buffered circuits for higher driving capacity than the 8255 Interrupt handling Timer/Counter interrupt capability Supports both dry and wet contact 50-pin Opto-22 compatible box header Suitable for DIN-rail mounting One lockable USB cable for secure connection included RoHS COMPLIANT 2002/95/EC Introduction The USB-4700 series consists of true Plug & Play data acquisition devices. No more opening up your computer chassis to install boards-just plug in the module, then get the data. It’s easy and efficient. USB-4751/4751L is a 48/24-bit digital I/O module for the USB bus. Its 48/24 bits are divided into six/three 8-bit I/O ports and users can configure each port as input or output via software. USB-4751/USB-4751L also provides one event counter and three 16-bit timers, which can be cascaded to become a 32-bit timer. Specifications Digital Input Channels Compatibility Input Voltage General 48/24 (shared with output) 5 V/TTL Logic 0: 0.8 V max. Logic 1: 2 V min. Bus Type I/O Connectors 48/24 (shared with input) 5 V/TTL Logic 0: 0.5 V max. Logic 1: 3.8 V min. Sink: 12 mA @ 0.5 V Source: 12 mA @ 3.8 V for single Channels 5 mA @ 3.8 V for all Channels in High status Digital Output Channels Compatibility Output Voltage Output Capability Counter/Timer Channels 2 Resolution 32-bit Max. Input Frequency 8 MHz USB 1.1/2.0 50-pin IDC male connectors, pin assignments are fully compatible with Opto-22 I/O module racks Dimensions (L x W x H) 132 x 80 x 32 mm Power Consumption Typical: 200 mA @ 5 V Max.: 500 mA @ 5 V Operating Temperature 0 ~ 60° C (32 ~ 140° F) (refer to IEC 68-2-1, 2) Storage Temperature -20 ~ 70° C (-4 ~ 158° F) Storage Humidity 5 ~ 95% RH, non-condensing (refer to IEC 68-2-3) Ordering Information USB-4751 USB-4751L 1960004544 1960005788 48-ch Digital I/O USB Module 24-ch Digital I/O USB Module Wallmount Bracket VESA Mount Bracket Online Download www.advantech.com/products