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Access 104i-COM-8SM User Manual

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Contents
  1. Table Of Contents
  2. Chapter 1: INTRODUCTION
  3. Figure 1-1: Block Diagram
  4. Ordering Guide
  5. Optional Accessories
  6. Chapter 2: INSTALLATION
  7. Chapter 3: OPTION SELECTION
  8. Figure 3-2: Option Selection Map
  9. Jumper Function
  10. Chapter 4: ADDRESS SELECTION
  11. Chapter 5: PROGRAMMING
  12. Chapter 6: CONNECTOR PIN ASSIGNMENTS
  13. Table 6-2: P2 Connector Pin Assignment (8-port board only)
  14. Table 6-3: DB9M Accessory Cable RS-232 Pin Assignment
  15. Port to Port Cable Wiring
  16. Chapter 7: SPECIFICATION
  17. Appendix A: APPLICATION CONSIDERATIONS
  18. Table A-1: RS-422 Specification Summary
  19. Figure A-1: Typical RS-485 Two-Wire Multidrop Network
  20. Customer Comments
Access 104i-COM-8SM User Manual Manual pdf 18 page image
Manual 104i-COM-8SM18Port to Port Cable WiringThe following connections are used to communicate between two ports (usually on differentdevices), depending on the communication mode:Note that the user cable MUST include a ground to ground connection for RS-232,RS-422 and RS-485 as high common mode between external devices will burn outthe transceiver IC’s.Mode Cable PinsPort 1 to Port 2RS-232RX to TXTX to RXGround to GroundRS-422 Full-Duplex1RX+ to TX+RX- to TX-TX+ to RX+TX- to RX-Ground to GroundRS-422 Simplex Receive OnlyRX+ to TX+RX- to TX-Ground to GroundRS-422 Simplex Transmit OnlyTX+ to RX+TX- to RX-Ground to GroundRS-485 Half-DuplexTX+/RX+ to TX+/RX+TX-/RX- to TX-/RX-Ground to Ground1 RS-485 4-Wire (not a TIA/EIA standard)Port 1 designates the Master,should be an RS-422 (TX not shared)Port 2 designates the Slaves,must be an RS-485 (TX shared)Table 6-6: Port to Port Cable Wiring
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This manual is suitable for:
104i-COM-4S104i-COM-4SM104i-COM-8S104i-COM-8SM
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