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PC/104 - USB I/O
USB-DIO-32 - Buffered Digital I/O, Three Counter/Timers
FEATURES * High-speed USB 2.0 device, USB 1.1 compatible * Small, portable 32-channel digital I/O module * Four 8-bit ports independently selectable for inputs or outputs * All 32 I/O lines buffered with Sink 64mA / Source 32mA current capabilities * Removable screw terminal adaptor for easy wiring * Standard 50-pin IDC connector with key * Custom high-speed function driver * PC/104 module size and mounting compatibility * Small (4" x 4" x 1.25") rugged industrial enclosure FACTORY OPTIONS * Three 82C54 counter/timers * External power for high current capabilities * DIN rail mounting provision * Economy "E" version also available without the screw terminal board * OEM (board only) version with PC/104 mounting holes and PCB footprint for added flexibility in embedded applications
FUNCTIONAL DESCRIPTION The USB-DIO-32 is an ideal solution for adding portable, easy-to-install digital I/O and counter capabilities to any computer with a USB port. The USB-DIO-32 is a USB 2.0 high-speed device, offering the highest speed available with the USB bus. It is fully compatible with both USB 1.1 and USB 2.0 ports. The unit is plug-and-play allowing quick connect or disconnect whenever you need additional I/O on your USB port. The USB-DIO-32 features 32 bits of TTL-compatible digital I/O with high-current capabilities and three optional 82C54 counters. Each digital port can be programmed to accept inputs or to drive outputs on four 8-bit ports, designated as port A, B, C, and D. Power is supplied to the board via the USB cable or for higher current capabilities, external power may be used. The I/O wiring connections for USB-DIO-32 are via an industry standard 50-pin connector. For external circuits, fused +5VDC power is available at the connector. This resettable fuse is rated at 0.5A. All I/O lines are buffered by a type 74ABT245 tri-state buffer transceiver capable of sinking 64 mA or sourcing 32 mA. The buffers are configured under program control for input or output. Jumper selectable pull-ups (to +5 VDC) or pull-downs (to ground) on the board allow for contact monitoring and assure that there are no erroneous outputs at power-up until the board is initialized by system software. The USB-DIO-32 is designed to be used in rugged industrial environments but is small enough to fit nicely onto any desk or testing station. The board is PC/104 sized (3.550 by 3.775 inches) and ships inside a steel powder-coated enclosure with an anti-skid bottom. COUNTER/TIMERS Three 82C54 chips each include three 16-bit counter/timers factory configured in an optimal module for use as event counters, frequency output, pulse width, and frequency measurement (see the Block Diagram). 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 mounting holes match the PC/104 form factor (without the bus connections). This allows our rugged digital board to be added to any PCI-104 or PC/104 stack by connecting it to a simple USB 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-32 OEM board can also be installed using standoffs inside other enclosures or systems. ACCESSORIES The USB-DIO-32 is available with optional cable assemblies and screw terminal board. The pin connections are also compatible with industry standard I/O racks such as ACCES A24A, OPTO22, Gordos, Potter & Brumfield, etc. with optional cable. SOFTWARE The USB-DIO-32 is plug-and-play which allows quick connect or disconnect whenever you need additional I/O on your USB port. The module utilizes a highspeed custom function driver optimized for a maximum data throughput that is 50-100 times faster than the USB human interface device (HID) driver used by many competing products. This approach maximizes the full functionality of the hardware along with capitalizing the advantage of high-speed USB 2.0. The USB-DIO-32 is supported for use in most USB supported operating systems and includes a free Linux and Windows 98se/Me/2000/XP/2003 compatible software package. This package contains sample programs and source code in Visual Basic, Delphi, C++ Builder, and Visual C++ for Windows. Also incorporated is a graphical setup program in Windows. Third party support includes a Windows standard DLL interface usable from the most popular application programs. Embedded OS support include Windows XPe.
Advanced Digital Logic, Inc.; 4411 Morena Blvd., Suite 101; San Diego, CA 92117-4345 Ph. 858 490-0597 F. 858 490-0599; e-mail: sales@adl-usa.com; web: www.adl-usa.com
PC/104 - USB I/O
BLOCK DIAGRAM
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CONNECTOR PIN ASSIGNMENTS
USB-DIO-32 has a 50-pin connector provided for I/O connections
Advanced Digital Logic, Inc.; 4411 Morena Blvd., Suite 101; San Diego, CA 92117-4345 Ph. 858 490-0597 F. 858 490-0599; e-mail: sales@adl-usa.com; web: www.adl-usa.com
PC/104 - USB I/O
Specifications
Digital Inputs (TTL Compatible) Logic High: Logic Low: Digital Outputs Logic High: Logic Low: Optional Counter/Timers Type: Output Drive: Input Gate: Clock: Active Count Edge: Minimum Clock Pulse Width: Timer Range: Maximum Input Frequency: Bus Type USB 2.0 High-speed Environmental Operating Temperature Range: Storage Temperature Range: Humidity: Board Dimension: Box Dimension: Power +5VDC provided via USB bus up to 500mA** Basic Unit with Three Counters: 100mA typical (no load) +5VDC resettable fuse at 0.5A located on connector ** Optional on-board external power circuitry and AC/DC adapter can be ordered ("-P" option) if current use is expected to be greater than what can be supplied by the USB bus. Please check to see how much current your USB port can supply and how much current you anticipate using. 0 to 70C (extended temp available) -40 to +85C 5% - 95%, non-condensing 3.550 x 3.775 inches 4.00 x 4.00 x 1.25 inches USB 1.1 Full-speed compatible 82C54-10 programmable interval counters 2.0 VDC minimum source 32 mA 0.55 VDC maximum TTL/CMOS compatible On-board Negative Edge 30 nS high 40 nS low 16 bits 10MHz 2.0 VDC minimum source 32 mA 0.55 VDC maximum sink 64 mA 2.0 to 5.0 VDC -0.5 to +0.8 VDC
Ordering Guide USB-DIO-32 Options -OEM -E -DIN -P -Cx Accessories UTBK-50 External plug-in screw terminal board Board only version (no enclosure and screw terminal board) Economy model (no screw terminal board) DIN rail mounting provision External power and AC/DC adapter Number of counters (where x = 1, 2 or 3 counters) Enclosure, module and screw terminal board
Advanced Digital Logic, Inc.; 4411 Morena Blvd., Suite 101; San Diego, CA 92117-4345 Ph. 858 490-0597 F. 858 490-0599; e-mail: sales@adl-usa.com; web: www.adl-usa.com

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