Copyright © 2010 Future Technology Devices International Limited

3

Document Reference No.: FT_000117

USB TO RS485 SERIAL CONVERTER CABLE Datasheet

Version 1.4

Clearance No.: FTDI

#75

Table of Contents

1

Description ..................................................................................... 1

2

Cable Part Numbers........................................................................ 2

2.1

Certifications................................................................................................. 2

2.1

USB Compliant .............................................................................................. 2

The USB-R485 cable is fully compliant with the USB 2.0 specification. ................... 2

3

Typical Applications........................................................................ 4

3.1

Driver Support .............................................................................................. 4

3.2

Features........................................................................................................ 4

4

Features of FT232R applicable to USB-RS485 Cable ....................... 5

5

USB-RS485-WE-LLLL-CU-X ............................................................. 6

5.1

USB-RS485-WE Connections and Mechanical Details..................................... 6

5.2

USB-RS485-WE Cable Signal Descriptions..................................................... 7

5.3

USB-RS485-WE Electrical Parameters ........................................................... 7

5.4

Local Echo ..................................................................................................... 8

6

Cable PCB Block Diagram................................................................ 9

7

USB-RS485 – Schematic ............................................................... 10

8

Contact Information ..................................................................... 11

Appendix A - Cable EEPROM Configuration......................................... 13

Appendix B - List of Figures and Tables.............................................. 14

Appendix C - Revision History ............................................................ 15