USB-COM485-PLUS-1 FTDI, Future Technology Devices International Ltd, USB-COM485-PLUS-1 Datasheet

MODULE USB TO RS485 CONV SGL

USB-COM485-PLUS-1

Manufacturer Part Number
USB-COM485-PLUS-1
Description
MODULE USB TO RS485 CONV SGL
Manufacturer
FTDI, Future Technology Devices International Ltd
Series
USB-COM-Plusr
Datasheet

Specifications of USB-COM485-PLUS-1

Convert From (adapter End)
USB-B
Convert To (adapter End)
DE-9P Male
Features
USB to RS485 Serial Converter Assy, w/LEDs, 3Mbps
For Use With/related Products
Windows® 2000 or higher, Linux, Max OS X
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
768-1038
USB-COM485-PLUS-1
Future Technology Devices International Ltd
USB-COM485-PLUS1
Datasheet
Document Reference No.: FT_000132
Version 1.21
Issue Date: 2010-10-06
Future Technology Devices International Ltd (FTDI)
Unit 1, 2 Seaward Place, Centurion Business Park, Glasgow, G41 1HH, United Kingdom
Tel.: +44 (0) 141 429 2777
Fax: + 44 (0) 141 429 2758
E-Mail (Support): support1@ftdichip.com Web: http://www.ftdichip.com
Neither the whole nor any part of the information contained in, or the product described in this manual, may be adapted or reproduced
in any material or electronic form without the prior written consent of the copyright holder. This product and its documentation are
supplied on an as-is basis and no warranty as to their suitability for any particular purpose is either made or implied. Future Technology
Devices International Ltd will not accept any claim for damages howsoever arising as a result of use or failure of this product. Your
statutory rights are not affected. This product or any variant of it is not intended for use in any medical appliance, device or system in
which the failure of the product might reasonably be expected to result in personal injury. This document provides preliminary
information that may be subject to change without notice. No freedom to use patents or other intellectual property rights is implied by
the publication of this document. Future Technology Devices International Ltd, Unit1, 2 Seaward Place, Centurion Business Park,
Glasgow, G41 1HH, United Kingdom. Scotland Registered Number: SC136640
Copyright © 2010 Future Technology Devices International Limited

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USB-COM485-PLUS-1 Summary of contents

Page 1

... Future Technology Devices International Ltd USB-COM485-PLUS1 Document Reference No.: FT_000132 Future Technology Devices International Ltd (FTDI) Unit 1, 2 Seaward Place, Centurion Business Park, Glasgow, G41 1HH, United Kingdom Tel.: +44 (0) 141 429 2777 E-Mail (Support): support1@ftdichip.com Web: http://www.ftdichip.com Neither the whole nor any part of the information contained in, or the product described in this manual, may be adapted or reproduced in any material or electronic form without the prior written consent of the copyright holder ...

Page 2

... TXD/RXD LEDs to provide a visual indication of data traffic through the module. Figure 1.1 USB-COM485-Plus1 The module uses a standard USB-B device connector for connection to an upstream host or hub port. RS485-level signals are available on an industry-standard DE-9P connector. The maximum RS485-level data rate is 3Mbps. ...

Page 3

... LED Description The USB-COM485-Plus1 uses three LEDs to indicate a valid link as well as data traffic according to the following table: LED Color Function Yellow Enumerated TxD Activity Green RxD Activity Red Table 1.1 LED Description 1.3 Block Diagram USB B FTDI FT232R Client USB Serial Bridge Connector Figure 1 ...

Page 4

... Parity: None, Even, Odd o Data bits Flow control: None o One DE-9P male connector LEDs indicate USB Enumeration, RxD, TxD for monitoring port status & easy diagnostics Operating temperature of -40°C to +85°C 1.5 Performance Figures Parameter Performance USB Interface 12Mbps USB 2.0 Full-Speed Standard baud rates (300bps to 921 ...

Page 5

... Wiring ...................................................................................................... 6 2.2 Device Driver Installation ............................................................................. 7 2.2.1 Microsoft Windows ..................................................................................... 7 2.2.2 Mac OS X, Linux, Windows CE ................................................................... 10 2.3 Local Echo ................................................................................................... 10 3 Connections .................................................................................. 11 3.1 External Connectors .................................................................................... 11 3.1.1 USB ....................................................................................................... 11 3.1.2 RS485 .................................................................................................... 11 4 Electrical details ........................................................................... 12 4.1 USB ............................................................................................................. 12 4.2 RS485 ......................................................................................................... 12 4.3 Power Output .............................................................................................. 13 5 Mechanical Details ........................................................................ 14 5.1 Module Mechanical Dimensions ................................................................... 14 6 Physical Environment Details ...

Page 6

... Technical Support ....................................................................................... 18 9 Contact Information ..................................................................... 20 Appendix A - List of Figures and tables .............................................. 22 Appendix B - Revision History ............................................................ 23 Copyright © 2010 Future Technology Devices International Limited Document Reference No.: FT_000132 USB-COM485-PLUS1 Datasheet Version 1.21 Clearance No.: FTDI ...

Page 7

... Installation 2.1 Example Applications and Configurations 2.1.1 Wiring Insert the A-plug into an available USB Host or Hub port. Insert the B-plug into the B-receptacle on the USB-COM485-Plus1. DTE Pin Number Signal Name 1 DATA- = Transmit/Receive Data, negative polarity Also Terminator 2 2 DATA+ = Transmit/Receive Data, positive polarity ...

Page 8

... Installation Executable shown on Windows XP 1) Login to your system as Administrator user with Administrator rights. 2) Prior to connecting the USB-COM485-Plus1 to the USB Host or Hub port, download the latest device driver version from the FTDIChip web site. 3) Run this executable to install the device drivers. ...

Page 9

... After the files are found and installed, click “Finish” to complete the installation. Figure 2.5 Complete Hardware Installation 7) Steps 2 through 6 will repeat. The first time installs the basic USB Serial Converter in the USB device tree. The second time installs the Virtual COM Port layer in the Ports tree and assigns the COM port number ...

Page 10

... Figure 2.7 Device Manager Click on the Plus “+” sign next to the Ports tree to list the available COM port. You will see “USB Serial Port”, followed by a COMn assignment. In the figure below, the USB-COM485-Plus1 is assigned to COM3. Figure 2.8 COM Port Assignment Use this COM port number with your application software in order to access the USB-COM485-Plus1 ...

Page 11

... The ability to enable or disable local echo on the RS485 data is controlled by the setting in the FT232R EEPROM. A free utility is provided to change the configuration. The default is for local echo to be disabled. Copyright © 2010 Future Technology Devices International Limited Document Reference No.: FT_000132 USB-COM485-PLUS1 Datasheet Version 1.21 Clearance No.: FTDI ...

Page 12

... The RS485 port is configured as Data Terminal Equipment (DTE), with a 9-contact D-Sub Pin connector. Pin assignments are according to TIA/EIA-485. In addition, pin9 of DE-9P may be assigned to provide +5VDC to an external device with a maximum current draw of 250mA once the USB-COM485-Plus1 has been enumerated by the system. ...

Page 13

... Electrical details 4.1 USB Parameter Description USB_VCC Input Power Voltage* I USB current*** cc Table 4.1 USB Electrical Details 4.2 RS485 Parameter Description Receiver Input VCM Common-mode input voltage range IN Input Current Differential Threshold VTH Voltage Input Hysteresis VIHYST Input Resistance, RIN RIN ...

Page 14

... Power Output The USB-COM485-Plus1 assign pin9 of DE-9P to provide +5V DC for an external device that requires power. The maximum allowable current is 500mA, including the circuitry of the USB-COM485-Plus1 itself 250mA may be used by the external device. ...

Page 15

... Mechanical Details 5.1 Module Mechanical Dimensions Figure 5.1 USB-COM485-Plus1 PCB Dimensions Copyright © 2010 Future Technology Devices International Limited Document Reference No.: FT_000132 USB-COM485-PLUS1 Datasheet Version 1.21 Clearance No.: FTDI ...

Page 16

... Operating Temperature T Range Table 6.2 Operating Temperature Copyright © 2010 Future Technology Devices International Limited Minimum Typical Maximum -65 +150 Minimum Typical Maximum –40 +85 Document Reference No.: FT_000132 USB-COM485-PLUS1 Datasheet Version 1.21 Clearance No.: FTDI# 95 Units Conditions o C Units Conditions 5% to 95% RH non condensing 15 ...

Page 17

... EMI Compatibility FCC and CE The USB-COM485-Plus1 has been tested to be compliant with both FCC Part 15 Subpart B and European EMC Directive. NOTE: This is a Class B product domestic environment, this product may cause radio interference, in which case the user may be required to take adequate measures. ...

Page 18

... Import / Export Information Country of Origin China TBD Harmonized Code Product Description USB to RS485 Development Module, Single Port USA ECCN EAR99 – No License Required Table 7.1 Import / Export Information Copyright © 2010 Future Technology Devices International Limited Document Reference No.: FT_000132 USB-COM485-PLUS1 Datasheet Version 1 ...

Page 19

... Computer power Computer is not in Sleep or Standby - If a USB Hub is used, be sure it is set for “Self-Powered” operation - If a USB Hub is used, be sure all cables are properly inserted - If all the above are OK, the Yellow LED should be lit, indicating the device has been recognized by the USB subsystem. RS485 cables – ...

Page 20

... Technical support may be obtained from your nearest FTDIChip office: United Kingdom: United States: China: Taiwan Copyright © 2010 Future Technology Devices International Limited support1@ftdichip.com us.support@ftdichip.com cn.support@ftdichip.com tw.support1@ftdichip.com Document Reference No.: FT_000132 USB-COM485-PLUS1 Datasheet Version 1.21 Clearance No.: FTDI ...

Page 21

... USA Tel: +1 (503) 547 0988 Fax: +1 (503) 547 0987 E-Mail (Sales) us.sales@ftdichip.com E-Mail (Support) us.support@ftdichip.com E-mail (General Enquiries) us.admin@ftdichip.com Web Site URL http://www.ftdichip.com Copyright © 2010 Future Technology Devices International Limited Document Reference No.: FT_000132 USB-COM485-PLUS1 Datasheet Version 1.21 Clearance No.: FTDI ...

Page 22

... Future Technology Devices International Ltd, Unit 1, 2 Seaward Place, Centurion Business Park, Glasgow G41 1HH United Kingdom. Scotland Registered Number: SC136640 Copyright © 2010 Future Technology Devices International Limited Document Reference No.: FT_000132 USB-COM485-PLUS1 Datasheet Version 1.21 Clearance No.: FTDI ...

Page 23

... Table 3.1 USB "B" Receptacle Pin-Out ........................................................................................................ 11 Table 3.2 DE-9P RS485 Pin-Out .................................................................................................................... 11 Table 4.1 USB Electrical Details ................................................................................................................... 12 Table 4.2 RS485 Electrical Details ............................................................................................................... 12 Table 4.3 Power Output for USB-COM485-Plus1 ........................................................................................ 13 Table 6.1 Storage Temperature .................................................................................................................... 15 Table 6.2 Operating Temperature ................................................................................................................ 15 Table 7.1 Import / Export Information .......................................................................................................... 17 Copyright © 2010 Future Technology Devices International Limited Document Reference No ...

Page 24

... Edited Section 1.3.1, Removed the statement “A standard “A to B” cable is provided” Version 1.21 Edited table 1.2, RS485 cable length Copyright © 2010 Future Technology Devices International Limited Document Reference No.: FT_000132 USB-COM485-PLUS1 Datasheet Version 1.21 Clearance No.: FTDI March 2009 18 March 2009 04 June 2009 ...

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