PCIe-DIO-48S PCIe-DIO-24S PCI Express Digital I/O Cards with Change of State Detection FEATURES • 48 channel high-current TTL digital I/O lines • Change of State (COS) detection and interrupt capabilities • Compatible with industry standard 8255 PPI • Two 50-pin male headers with 24 digital lines each • User interrupt pin on each DIO connector • All 48 digital I/O lines buffered with 32mA source / 64mA sink current capabilities • Four and eight bit ports independently selectable for inputs or outputs • Pull-ups on DIO lines (optional pull-down) • 5V VCCIO (3.3V optional) • VCCIO available to the user on each I/O header • Compatible with industry standard I/O racks like Grayhill, Opto 22, Western Reserve Controls, etc. FACTORY OPTIONS • 3.3V VCCIO (LVTTL) • I/O lines pulled down • Molex PC-style connector for maximum 5V VCCIO current sourcing capability • Extended temperature operation (-40° to +85°C) • 48 channel card without change of state feature • 24 channel card with change of state FUNCTIONAL DESCRIPTION The PCIe-DIO-48S is a 48 channel PCI Express (PCIe) card designed for use in a variety of digital I/O applications. It uses the high speed PCI Express bus to transfer digital data to and from the card. The digital I/O is compatible with 8255 PPI chips making it easy to program. This also allows for simple and trouble-free migration from other ACCES PCI digital I/O cards . The card features a x1 lane PCI Express connector which can be used in any available x1, x2, x4, x8, x12, or x16 PCI Express expansion slot. Each 50-pin header has three 8-bit I/O ports designated A, B and C. Port C can be further divided into two 4-bit nybbles. Each port can be programmed as inputs or outputs. Change of State (COS) detection and interrupt capabilities are designed to relieve software from polling routines that can consume valuable processing time. Each port can be programmed for detecting state changes on their lines, in which any changes of the enabled port's bits (low-to-high or high-to-low) will generate an IRQ. An ISR (interrupt service routine) then polls the port to determine which bit changed state and clear the interrupt. The connectors are also compatible with existing 48 and 24 channel ACCES PCI digital I/O cards. The card is 6.6 inches in length and 4.2 inches seated height. One or two flat ribbon cables are routed through a cutout in the mounting bracket and plugged onto the keyed 50-pin male headers on the side of the card. A strain relief bracket securely holds the ribbon cables at the point of exit via the PCIe mounting bracket. ACCESSORIES Available accessories include a broad range of ribbon cables, screw terminal boards and optically isolated adaptors and DIN-rail mounts for a variety of quick and easy connectivity options. Use ribbon cables with a female header on one end and a 50-pin female edge connector on the other to connect with industry standard solid state module racks. SOFTWARE The card is supported for use in most operating systems and includes a free DOS, Linux , and Windows 2000/XP/2003/Vista/7 compatible software package. This package contains sample programs and source code in Visual Basic, Delphi, and Visual C++ for Windows. Also provided is a graphical setup program in Windows. Linux support includes installation files and basic samples for programming from user level via an open source kernel driver. Third party support includes a Windows standard DLL interface usable from the most popular application programs, and includes LabVIEW 8.5+ VIs. Embedded OS support includes Windows XPe. 10623 Roselle Street, San Diego, CA 92121 • (858) 550-9559 • Fax (858) 550-7322 • contactus@accesio.com • www.accesio.com BLOCK DIAGRAM SPECIFICATIONS VCCIO 5V (TTL), optional 3.3V (LVTTL) Digital Inputs Logic High 2.0V to VCCIO Signal Signal Logic Low 0V to 0.8V Pin Pin Name Name Current ±20uA (max) 1 PC7 2 GND Digital Outputs 3 PC6 4 GND Logic High 2.0V (min); 32mA source 5 PC5 6 GND Logic Low 0.55V (max); 64mA sink 7 PC4 8 GND Power Output VCCIO (P2 & P3; pin 49) 9 PC3* 10 GND Via 0.5A resettable fuse 11 PC2 12 GND Environmental 13 PC1 14 GND Operating Temperature 0° to 70°C, optional -40° to +85°C 15 PC0 16 GND Storage Temperature -55° to +150°C 17 PB7 18 GND Humidity 5% to 90% RH, without 19 PB6 20 GND 21 PB5 22 GND condensation 23 PB4 24 GND Card Dimensions Length - 6.6"; Height - 4.2" (seated) 25 PB3 26 GND ORDERING GUIDE 27 PB2 28 GND • PCIe-DIO-48S 48-bit Digital I/O card with change of 29 PB1 30 GND state detection 31 PB0 32 GND • PCIe-DIO-48 48-bit Digital I/O card 33 PA7 34 GND • PCIe-DIO-24S 24-bit Digital I/O card with change of 35 PA6 36 GND state detection 37 PA5 38 GND Factory Options 39 PA4 40 GND • Extended temperature operation (-40° to +85°C) 41 PA3 42 GND 43 PA2 44 GND • Molex PC-style connector for maximum 5V VCCIO current 45 PA1 46 GND sourcing capability 47 PA0 48 GND • 3.3V VCCIO (LVTTL) 49 VCCIO** 50 GND • I/O lines pulled down * PC3 is an I/O pin and also a user interrupt 50-Pin Connector arrangement and assignments ** VCCIO is protected by a resettable 0.5A fuse 10623 Roselle Street, San Diego, CA 92121 • (858) 550-9559 • Fax (858) 550-7322 • contactus@accesio.com • www.accesio.com