
Manual 104i-COM-8SM
Table of Contents
Chapter 1: INTRODUCTION ..................................................................................................5
Factory Options .................................................................................................................5
Figure 1-1: Block Diagram...............................................................................................6
Ordering Guide...................................................................................................................7
Model Options....................................................................................................................7
Special Order......................................................................................................................7
Included with your board ..................................................................................................7
Optional Accessories ........................................................................................................8
Chapter 2: INSTALLATION....................................................................................................9
CD Installation....................................................................................................................9
Windows.............................................................................................................................9
Installing the Hardware......................................................................................................9
To Install the Card..............................................................................................................9
Chapter 3: OPTION SELECTION.........................................................................................10
Figure 3-1: Simplified Dynamic Termination Schematic................................................10
Line Terminations............................................................................................................10
Figure 3-2: Option Selection Map..................................................................................11
Jumper Function..............................................................................................................12
RS-485 Balanced Mode Operation..................................................................................12
Chapter 4: ADDRESS SELECTION.....................................................................................13
Chapter 5: PROGRAMMING................................................................................................14
Chapter 6: CONNECTOR PIN ASSIGNMENTS...................................................................15
Table 6-1: P1 Connector Pin Assignment (8-port and 4-port boards)............................15
Table 6-2: P2 Connector Pin Assignment (8-port board only)........................................16
Table 6-3: DB9M Accessory Cable RS-232 Pin Assignment.........................................17
Table 6-4: DB9M Accessory Cable RS-422 Pin Assignment.........................................17
Table 6-5: DB9M Accessory Cable RS-485 Pin Assignment.........................................17
Port to Port Cable Wiring ................................................................................................18
Table 6-6: Port to Port Cable Wiring..............................................................................18
Chapter 7: SPECIFICATION................................................................................................19
Appendix A: APPLICATION CONSIDERATIONS...............................................................20
Table A-1: RS-422 Specification Summary ...................................................................21
Figure A-1: Typical RS-485 Two-Wire Multidrop Network.............................................22
Customer Comments ..........................................................................................................23