ETH-DIO Series

The ETH-DIO-48 was designed for compact control and monitoring applications. The product features 48 or 24 industrial strength, high-current TTL digital I/O lines. Connections to the board are made via two industry standard, 50-pin IDC-type headers. Each header has three 8-bit I/O ports designated A, B and C. Each port can be programmed to accept inputs or drive outputs. For external circuits, 0.5A fused +5VDC power is available at pin 49 of each I/O connector. Power is supplied to the card via an included AC/DC regulated 5VDC external power adapter.

This Ethernet device is an ideal solution for adding portable, easy-to-install, digital I/O to any Ethernet network, even wirelessly. The ETH-DIO-48 is excellent for use in applications sensing inputs such as switch closures, TTL, LVTTL, CMOS logic, and is ideal for controlling external relays, driving indicator lights, and more. Applications include home, portable, tablet, laboratory, industrial automation, and embedded OEM.

Each I/O line is buffered by a type 74ABT543A tristate buffer transceiver capable of sourcing 32mA or sinking 64mA. Jumper selected resistors permit user configuration of I/O lines for pull-up (to +5 VDC), pull-down (to ground), or floating depending on the application requirement. Pull-ups are useful for contact monitoring and assure that there are no erroneous outputs at power-up until the board is initialized by system software.

OEM ETH/104 FORM FACTOR

The ETH-DIO-48 was designed to be used in rugged industrial environments but is small enough to fit nicely onto any desk or testing station. The board itself measures just 3.550 by 3.775 inches and ships inside a steel powder-coated enclosure with an anti-skid bottom. A DIN rail mounting provision is available for installation in industrial environments. What makes the OEM option unique is that its PCB size and pre-drilled mounting holes match the PC/104 form factor (without the bus connections). This ensures easy installation using standard standoffs inside most embedded enclosures or systems. The ETH-DIO-48 can be integrated into any PC/104-based stack by simply connecting it to an Ethernet port included with embedded CPU form factors.

Applications

• Industrial Automation
• Embedded OEM
• Portable DAQ
• Laboratory
• Home Automation
• Kiosks

ACCESSORIES

Available accessories include a broad range of ribbon cables, screw terminal boards, optically isolated adapters, electromechanical relay boards, and industry standard solid state module racks. Special order items such as conformal coating, custom software, right angle headers, and more, are also available.

SOFTWARE

Because of Ethernet’s ubiquitous nature, these boards are supported for use in all operating systems -- including Windows, Linux, Unix, iOS, Android, -- even Raspberry PI, etc. The software package includes a free Linux and Windows software package with sample programs and source code in C#, Delphi, Visual Basic, and Visual C++ for Windows. Also provided is a graphical setup program in Windows and extensive ethernet-packet level API documentation. Third party application support includes a Windows standard DLL interface usable from the most popular application programs. Embedded OS support includes Windows Embedded Standard.

Drivers and Downloads

Full list of available Downloads: Software Packages, Drivers, Manuals, and other documents

Custom Software

ACCES also offers Custom Software Services for our products. Our prices are unbelievably low, often as inexpensive as free! If you need something tweaked to support your needs, or an entire enterprise application developed from scratch, it is definitely worth your time to inquire with us, first.

Further information about available ACCES Software:

Redistributing Windows Drivers

A list of ACCES drivers and the files that compose them under different versions of Windows, so you can easily redistribute ACCES cards and drivers.

Specifications

Digital I/O (TTL Compatible)

• Channels / Groups: 48 or 24 in 8-bit groups
• Inputs:
• Logic High: 2.0 VDC minimum, 5.5 VDC max.
• Logic Low: -0.5 VDC minimum, 0.8 VDC max.
• Bias Resistors: 10KΩ
• Outputs:
  • Logic High: 2.0 VDC minimum, source 32 mA
  • Logic Low: 0.55 VDC maximum, sink 64 mA
• Sample Rate: Up to 2500 round-trip DI/O Read/Write transactions per second (Note: performance is critically affected by network traffic)

Bus Type

• Ethernet 10/100 Base T, Auto-detecting

Environmental

• Operating Temperature Range: 0°C to 70°C (Optional -40°C to +80°C)
• Storage Temperature Range: -40°C to +85°C
• Humidity: 5%-90%, non-condensing

Mechanical

• Board Dimension: 3.550 x 3.775 inches
• Box Dimension: 4.00 x 4.00 x 1.25 inches
• Connectors:
• I/O: Dual row 0.1” 50 pin shrouded headers with grounds on all even pins to suppress crosstalk
• DC power jack: 2.0mm + center post
• Screw terminals: Available via enclosure cutout

Power

• External AC/DC 5V regulated adaptor is included
• Basic 48 bit unit: +5VDC from external regulated power supply, <300mA typical (no load)
• Auxiliary Outputs: +5VDC via 0.5A resettable fuse for both connectors

Regulatory Compliance

• This product is designed to be in full compliance with CE requirements.