PC/104 - USB

Advanced Digital Logic, Inc.; 4411 Morena Blvd., Suite 101; San Diego, CA 92117-4345

USB Digital Input/Output Module 96 or 48 Digital I/O’s

FEATURES

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96 or 48 lines of digital I/O

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High retention type B USB connector

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Mini USB header connector in parallel with type B for stacking and

embedded applications

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High-speed USB 2.0 device, USB 1.1 backwards compatible

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Twelve (12) or Six (6) 8-bit ports independently selectable for inputs

or outputs

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All I/O lines buffered with 32 mA source, 64mA sink current

capabilities

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I/O Buffers can be enabled or tri-stated under program control

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Drivers and sample application provided

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Jumper selectable I/O pulled up to 5V for contact monitoring, pulled

down to ground or floating

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Jumper selectable power provided via USB cable or external power

supply for higher source current capabilities

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Resettable fused +5VDC outputs per 50-pin connector

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Standard 50-pin IDC-type shrouded connectors with key

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PC/104 size (3.550 by 3.775 in.)

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Rugged industrial enclosure

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Compatible with Industry-Standard I/O Racks such as Gordos,

OPTO22, Potter & Brumfield, etc. with optional cable

FACTORY OPTIONS

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Board only version with no enclosure

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DIN rail mounting bracket industrial environments

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Extended operating temperature -40 to +85˚C

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On-board regulator, DC power jack and AC/DC adapter

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This product is available in a RoHS compliant version

FUNCTIONAL DESCRIPTION

This USB board is an ideal solution for adding portable, easy-to-install digital I/O capabilities to any computer with a USB port. The board is a USB 2.0 high

speed device, offering the fastest speed available with the USB bus. It is fully compatible with both USB 1.1 and USB 2.0 ports. The card is plug-and-play

allowing quick connect/disconnect whenever you need additional I/O on your USB port.

The board features 96 or 48 bits of TTL-compatible digital I/O with high-current capabilities. Each digital port can be programmed to accept inputs or to drive

outputs in twelve or six 8-bit ports. Power is supplied to the card via the USB cable, or for higher source current capabilities, an external power option may be

ordered. The I/O wiring connections are via two or four industry standard 50-pin connectors. For external circuits, fused +5VDC power is available at pin 49 of

each I/O connector. The resettable fuse is rated at 0.5A.

All I/O lines are buffered by a type 74ABT543A tristate buffer transceiver capable of sourcing 32 mA or sinking 64 mA. The buffers are configured under pro-

gram control for input or output. Jumper selected resistors permit configuration of each 24-bit / 50-pin connector group 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 card is initialized by system software.

Unlike most USB digital I/O products which primarily use a human interface device (HID) driver, we provide an easy to use, Windows/Linux-based, custom

function driver capable of updating all 96-bits approximately 4000 times per second.

OEM USB/104 FORM FACTOR

The OEM (board only) version is perfect for a variety of embedded applications. What makes the OEM option unique is that its PCB size and pre-drilled mount-

ing holes match the PC/104 form factor (without the bus connections). This ensures easy installation using standard standoffs inside most enclosures or sys-

tems. The board can be added to any PC/104, PCI-104, or PCI/104-Express stack by connecting it to a USB 2.0 port usually included on-board with embedded

CPU form factors such as EBX, EPIC, and PC/104. This is especially important since many newer CPU chipsets do not support ISA and have plenty of USB

ports. The USB-DIO-96 and USB-DIO-48 OEM board can also be installed using standoffs inside other enclosures or systems. For embedded OEM type appli-

cations, an additional miniature USB input header is provided in parallel with the type B connector.