
Table of Contents
1. INTRODUCTION............................................................................................. 5
1.1 WHAT IS THE I/O EXPANSION BUS?.............................................................5
1.2 USING I-7188 I/O EXPANSION BOARDS: ...................................................... 5
1.3 OVERVIEW:................................................................................................5
1.4 RECONFIGURING THE 7188XC(D)/7521(D) ................................................. 9
2. REFERENCE GUIDE.................................................................................... 13
2.1 THIS MANUAL CAN ALSO BE FOUND AT :....................................................... 13
2.2 SOFTWARE INSTALLATION & DEMO PROGRAMS: ......................................... 13
3. WIRE CONNECTION : ................................................................................. 14
3.1 DIGITAL INPUT WIRE CONNECTION :........................................................... 14
3.2 DIGITAL OUTPUT WIRE CONNECTION : ....................................................... 14
3.3 VOLTAGE INPUT WIRE CONNECTION: ......................................................... 15
3.4 VOLTAGE OUTPUT WIRE CONNECTION:...................................................... 15
3.5 CURRENT INPUT WIRE CONNECTION:......................................................... 15
4. MOUNTING OF I/O EXPANSION BUS ........................................................ 16
4.1 MINIMAL MOUNTING WITH 7-SEGMEMT DISPLAY ........................................... 16
4.2 MEDIUM MOUNTING WITHOUT 7-SEG DISPLAY ............................................ 17
4.3 MOUNTING WITHOUT CASE ...................................................................... 18
4.4 ODM
MOUNTING WITHOUT CASE.............................................................. 19
5. I/O EXPANSION BUS................................................................................... 20
5.1 DEFINITION .............................................................................................. 21
5.2 PARALLEL BUS......................................................................................... 25
5.3 SERIAL BUS ............................................................................................. 30
6. SELECTION GUIDE..................................................................................... 32
6.1 EXPANSION BOARD FOR PROTOTYPE, TESTING .......................................... 32
6.2 I/O EXPANSION BOARD FOR D/I, D/O, TIMER/COUNTER, PWM...................32
6.3 I/O EXPANSION BOARD FOR A/D, D/A, DI, DO .......................................... 33
6.4 I/O EXPANSION BOARD FOR RS-232, RS-422, RS-485, DI, DO................33
6.5 I/O EXPANSION BOARD FOR SRAM, FLASH ............................................... 34
7. X0XX I/O EXPANSION BOARDS................................................................. 35
7.1 X000 :PROTOTYPE BOARD ....................................................................... 35
7.2 X001: PROTOTYPE BOARD ....................................................................... 36
I/O Expansion Bus for7188X/7188E User’s Manual, Jan/2005 v1.5, 7PH-000-15---2