ACCESS I/O PRODUCTS IIB-24 User Manual

24 channel optically isolated input board

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10623 Roselle Street, San Diego, CA 92121
(858) 550-9559
Fax (858) 550-7322
contactus@accesio.com
www.accesio.com
MODEL IIB-24
24 CHANNEL OPTICALLY ISOLATED
INPUT BOARD
USER MANUAL
FILE: MIIB-24.A3

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Summary of Contents for ACCESS I/O PRODUCTS IIB-24

  • Page 1 10623 Roselle Street, San Diego, CA 92121 (858) 550-9559 Fax (858) 550-7322   contactus@accesio.com www.accesio.com  MODEL IIB-24 24 CHANNEL OPTICALLY ISOLATED INPUT BOARD USER MANUAL FILE: MIIB-24.A3...
  • Page 2 THE COMPUTER POWER OFF. ALWAYS TURN COMPUTER POWER OFF BEFORE INSTALLING A BOARD. CONNECTING AND DISCONNECTING CABLES, OR INSTALLING BOARDS INTO A SYSTEM WITH THE COMPUTER OR FIELD POWER ON MAY CAUSE DAMAGE TO THE I/O BOARD AND WILL VOID ALL WARRANTIES, IMPLIED OR EXPRESSED. Manual IIB-24...
  • Page 3: Warranty

    Other than the above, no other warranty, expressed or implied, shall apply to any and all such equipment furnished or sold by ACCES. Manual IIB-24...
  • Page 4: Table Of Contents

    Figure 4-1: Input circuit diagram from screw terminal connections ..........10 Input/Output Connections .......................... 11 Table 4-1: 50-pin input header connector pin assignments ..............11 Chapter 5: Specifications ..........................12 Isolated Inputs ............................. 12 Environmental .............................. 12 Customer Comments ............................13 Manual IIB-24...
  • Page 5: Chapter 1: Introduction

    TTL level signals. The IIB-24 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).
  • Page 6: Functional Description

    The OEM “board-only” version is perfect for a variety of embedded applications. What makes this approach unique is that its PCB size and mounting holes match the PC/104 form factor. This allows our rugged digital board to be added to any PCI-104 or PC/104 stack. Figure 1-1: Block Diagram Manual IIB-24...
  • Page 7: Ordering Guide

    Ordering Guide IIB-24 24 channel isolated input to TTL output board Special Order Higher input voltages can be accommodated by changing the current limiting resistors. Other examples of special orders would be conformal coating, vertical I/O pin header instead of shrouded right-angle etc..
  • Page 8: Chapter 2: Installation

    Install jumpers as required for each option (filtering on, or no filtering on inputs) and as appropriate for how the TTL side of the board will be powered following either the Option Selection section of this manual or the suggestions of the SETUP.EXE software program. Manual IIB-24...
  • Page 9: Chapter 3: Hardware Details

    I/O card 50-pin header. Filter Jumpers 24 filter selection jumpers labeled FLT0 through FLT23 provide capability to add filtering to each input to eliminate undesired responses to noisy electrical signals and zero crossings of AC inputs. Figure 3-1: Board Image Manual IIB-24...
  • Page 10: Chapter 4: Connector Pin Assignments

    Screw Terminal Input Connections Each input signal connection is made at two screw terminals labeled “A” and “B”. The input signal number corresponds to an Input Bit number 0 through 23. Figure 4-1: Input circuit diagram from screw terminal connections Manual IIB-24...
  • Page 11: Input/Output Connections

    Input Bit 14 Input Bit 15 Input Bit 16 Input Bit 17 Input Bit 18 Input Bit 19 Input Bit 20 Input Bit 21 Input Bit 22 Input Bit 23 Table 4-1: 50-pin input header connector pin assignments Manual IIB-24...
  • Page 12: Chapter 5: Specifications

    Non-Filter Response: Rise Time = 10 uS / Fall Time = 30 uS Environmental Operating Temp: -40° to +100°C Storage Temp: -40° to +100°C Humidity: Maximum 90% RH, without condensation Board Dimension: 3.550 x 3.775 inches Box Dimension: 4.00 x 4.00 x 1.4 inches Power: 5V@ 35mA, typical Manual IIB-24...
  • Page 13: Customer Comments

    If you experience any problems with this manual or just want to give us some feedback, please email us at: manuals@accesio.com. Please detail any errors you find and include your mailing address so that we can send you any manual updates. 10623 Roselle Street, San Diego CA 92121 Tel. (858)550-9559 FAX (858)550-7322 www.accesio.com Manual IIB-24...

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