USB-RS422-WE-5000-BT

Future Technology Devices International Ltd USB to RS422 Serial Converter Cable Datasheet Future Technology Devices International Limited (FTDI) Unit1, 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 produ ct. 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 preliminar y 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 © Future Technology Devices International Limited USB TO RS422 SERIAL CONVERTER CABLE Datasheet Version 1.3 Document Reference No.: FT_000116 Clearance No.: FTDI# 74 1 Description The USB-RS422 cable is a USB to RS422 levels serial UART converter cable incorporating FTDI’s FT232RQ USB to serial UART interface IC device which handles all the USB signalling and protocols. The cable provides a fast, simple way to connect devices with a RS422 interface to USB. Each USB-RS422 cable contains a small internal electronic circuit board, utilising the FT232R, which is encapsulated into the USB connector end of the cable. The FT232R datasheet, DS_FT232R, is available at http://www.ftdichip.com. The integrated electronics also include the RS422 transceiver plus Tx and Rx LEDs which give a visual indication of traffic on the cable (if transparent USB connector mould specified). The other end of the cable is bare, tinned wire ended connections by default, but can be customised using different connectors to support various applications. Cables are FCC, CE, and RoHS compliant. The USB side of the cable is USB powered and USB 2.0 full speed compatible. Each cable is 1.8m long and supports a data transfer rate up to 3 Mbaud. Each cable supports the FTDIChip-ID™, with a unique USB serial number programmed into the FT232R. This feature can be used to create a security or password protected file transfer access using the cable. Further information and examples on this feature are available at http://www.ftdichip.com under FTDIChip-ID Projects. The USB-RS422 cables require USB drivers, available free from http://www.ftdichip.com, which are used to make the FT232R in the cable appear as a virtual COM port (VCP). This then allows the user to communicate with the USB interface via a standard PC serial emulation port (for example TTY). Another FTDI USB driver, the D2XX driver, can also be used with application software to directly access the FT232R on the cable though a DLL. This is illustrated in Figure 1.1. Various Connector Options VCP TTY Wire Ended USB_RS422 Customised connectors USB Virtual COM Port Various Connector Options Wire Ended D2XX DLL TTY USB Customised connectors Software application access to USB via D2XX Driver Figure 1.1 Using the USB-RS422 Cable Copyright © Future Technology Devices International Limited 1 USB TO RS422 SERIAL CONVERTER CABLE Datasheet Version 1.3 Document Reference No.: FT_000116 Clearance No.: FTDI# 74 2 Cable Part Numbers Table 2.1 gives details of the available USB-RS422 cables. Part Number USB-RS422-WE-1800-BT * USB-RS422-CC-LLLL-CU Description USB to UART cable with RS422 level UART signals. Black cable, Transparent USB connector USB to UART cable with RS422 level UART signals. C = cable colour (B black or T transparent), U = USB connector colour (T transparent or B black) End Connector* Wire Ended (no connector) CC = Connector description. Cable details 1.8m cable,9 core, UL2464 28 AWG, diam=5mm LLLL = Length of cable. Table 2.1 USB-RS422 Cables Descriptions and Part Numbers * FTDI supports customised end connector designs. For more information, please contact FTDI Sales Team (sales1@ftdichip.com) 2.1 Certifications FTDI USB-RS422 cable is fully RoHS compliant as well as CE and FCC certified. Copyright © Future Technology Devices International Limited 2 USB TO RS422 SERIAL CONVERTER CABLE Datasheet Version 1.3 Document Reference No.: FT_000116 Clearance No.: FTDI# 74 Table of Contents 1 Description ...................................................................... 1 2 Cable Part Numbers ........................................................ 2 2.1 3 Certifications ............................................................................ 2 Typical Applications ........................................................ 4 3.1 Driver Support .......................................................................... 4 3.2 Features .................................................................................... 4 4 Features of FT232R applicable to USB-RS422 Cable ........ 5 5 USB-RS422-WE-LLLL-CU ................................................. 6 5.1 USB-RS422-WE Connections and Mechanical Details ................ 6 5.2 USB-RS422-WE Cable Signal Descriptions ................................. 7 5.3 USB-RS422-WE Electrical Parameters ....................................... 7 6 Cable PCB Block Diagram ................................................ 8 7 USB-RS422 Schematic ..................................................... 9 8 Contact Information ...................................................... 10 Appendix A - Cable EEPROM Configuration......................... 13 Appendix B - References .................................................... 14 Document References ..................................................................... 14 Acronyms and Abbreviations ........................................................... 14 Appendix C - List of Figures and Tables ............................. 15 List of Figures ................................................................................. 15 List of Tables ................................................................................... 15 Appendix D - Revision History ............................................ 16 Copyright © Future Technology Devices International Limited 3 USB TO RS422 SERIAL CONVERTER CABLE Datasheet Version 1.3 Document Reference No.: FT_000116 Clearance No.: FTDI# 74 3 Typical Applications  USB to serial RS422 level converter.  USB Instrumentation PC interface.  Upgrading legacy peripherals to USB.  USB industrial control.  Interface Microcontroller UART or I/O to USB.  USB password protected file transfers.  Interface FPGA or PLD to USB. 3.1 Driver Support Royalty free VIRTUAL COM PORT Royalty free D2XX Direct Drivers (VCP) DRIVERS for... (USB Drivers + DLL S/W Interface)  Windows 10  Windows 10  Windows 8.x  Windows 8.x  Windows 7  Windows 7  Windows XP (legacy)  Windows XP (legacy)  Windows Vista (legacy)  Windows Vista (legacy)  Windows CE 4.2, 5.0 and 6.0  Windows CE 4.2, 5.0 and 6.0  Mac OS-X  Mac OS-X  Linux 2.4 and greater  Linux 2.4 and greater The drivers listed above are all available to download for free from www.ftdichip.com. Various 3rd Party Drivers are also available for other operating systems. Refer to www.ftdichip.com for details. 3.2 Features  USB-RS422 converter cable provides a USB to RS422 serial interface with customised end connectors.  X-On / X-Off software handshaking.  Data transfer rates from 300 baud to 3 Mbaud.  Support for FT232R FTDIChip-ID™ feature for improved security.  Low USB bandwidth consumption. power requirements.  UHCI / OHCI / EHCI host controller compatible. UART interface support for 7 or 8 data bits, 1 or 2 stop bits and odd / even / mark / space / no parity.  USB 2.0 Full Speed compatible.  -40°C to +85°C operating temperature range.  Internal EEPROM with user writeable area.  Cable length is 1.80m (6 feet).  FTDI’s royalty-free VCP allow for communication as a standard emulated COM port and D2XX ‘direct’ drivers provide DLL application programming interface.  ESD Protection for RS-422 I/O's ±15kV Human Body Model (HBM) ±15kV EN61000-4-2 Air Gap Discharge ±8kV EN61000-4-2 Contact Discharge  Visual indication of Tx and Rx traffic via LEDs in the transparent USB connector.  FCC and CE compliant.  Custom versions available on request (subject to MOQ).  RoHS Compliant  Entire USB protocol handled by the electronics in the cable.  EIA/TIA-422 communication interface with low  Copyright © Future Technology Devices International Limited 4 USB TO RS422 SERIAL CONVERTER CABLE Datasheet Version 1.3 Document Reference No.: FT_000116 Clearance No.: FTDI# 74 4 Features of FT232R applicable to USB-RS422 Cable The USB-RS422 cable uses FTDI’s FT232RQ USB to serial UART IC device. This section summarises the key features of the FT232RQ which apply to the USB-RS422 USB to serial RS422 converter cables. For further details, and a full features and enhancements description refer to the FT232R datasheet. www.ftdichip.com. Internal EEPROM. The internal EEPROM in each cable is used to store USB Vendor ID (VID), Product ID (PID), device serial number, product description string and various other USB configuration descriptors. Each cable is supplied with the internal EEPROM pre-programmed as described in Appendix A - Cable EEPROM Configuration EEPROM Configuration. The internal EEPROM descriptors can be programmed in circuit, over USB without any additional voltage requirement. It can be programmed using the FTDI utility software called MPROG, which can be downloaded from FTDI Utilities on the FTDI website (http://www.ftdichip.com). Additionally, there is a user area of the internal EEPROM available to system designers to allow storing of data (note that this is not modified by MPROG). Lower Operating and Suspend Current. The FT232R has a low 15mA operating supply current and a very low USB suspend current of approximately 70μA. (Note that during suspend mode, the current drawn by any customised cable application which uses the USB supply, should not exceed 2.5mA to remain USB compliant) Low USB Bandwidth Consumption. The USB interface of the FT232R, and therefore the USB-RS422 cables has been designed to use as little as possible of the total USB bandwidth available from the USB host controller. FTDIChip-ID™. The FT232R includes the new FTDIChip-ID™ security dongle feature. This FTDIChipID™ feature allows a unique number to be burnt into each cable during manufacture. This number cannot be reprogrammed. This number is only readable over USB can be used to form the basis of a security dongle which can be used to protect any customer application software being copied. This allows the possibility of using the USB-RS422 cables as a dongle for software licensing. Further to this, a renewable license scheme can be implemented based on the FTDIChip-ID™ number when encrypted with other information. This encrypted number can be stored in the user area of the FT232R internal EEPROM, and can be decrypted, then compared with the protected FTDIChip-ID™ to verify that a license is valid. Web based applications can be used to maintain product licensing this way. AN232R-02 describes this feature. Improved EMI Performance. The USB-RS422 cables are FCC and CE certified. Extended Operating Temperature Range - The USB-RS422 cables are capable of operating over an extended temperature range of -40º to +85º C thus allowing them to be used in commercial or industrial applications. Copyright © Future Technology Devices International Limited 5 USB TO RS422 SERIAL CONVERTER CABLE Datasheet Version 1.3 Document Reference No.: FT_000116 Clearance No.: FTDI# 74 5 USB-RS422-WE-LLLL-CU The USB-RS422-WE cable is un-terminated; it has bare and tinned wires. The LLLL specifies the length of the cable in cm. The CU specifies the colour of the cable and the colour of the USB connector. The cable can be either Black or transparent. The USB connector comes with transparent plug because of the LED implemented inside but can be sold in black colour as well. For simplicity, the LLLL and CU have been dropped from the following descriptions. 5.1 USB-RS422-WE Connections and Mechanical Details Figure 5.1 shows the cable signals and the wire colours for the signals on the USB-RS422-WE cable. Figure 5.2 shows dimensions in millimetres. GND 1 CTS+ 2 TXD- 1 2 3 3 TXD+ 4 RXD+ 5 RTS+ 4 BLACK BROWN RED ORANGE 5 YELLOW 6 6 GREEN RTS- 7 7 BLUE RXD- 8 8 CABLE 1.8m WHITE 9 CTS- 9 GREY Figure 5.1 USB-RS422-WE Connections 4 - - 5 tinned 30  2 Figure 5.2 USB-RS422-WE Mechanical Details (dimensions in mm) Figure 5.3 USB-RS422-WE Cable images Copyright © Future Technology Devices International Limited 6 USB TO RS422 SERIAL CONVERTER CABLE Datasheet Version 1.3 Document Reference No.: FT_000116 Clearance No.: FTDI# 74 5.2 USB-RS422-WE Cable Signal Descriptions Colour Black Brown Red Orange Yellow Green Blue White Grey Name Type Description GND GND Device ground supply pin. CTS+ Input Clear to Send Control + (B), Input TXDOutput Data – (A) Output TXD+ Output Data + (B) Output RXD+ Input Data + (B) Input RTS+ Output Request To Send Control + (B), Output RTSOutput Request To Send Control – (A), Output RXDInput Data – (A) Input CTSInput Clear to Send Control input – (A), Input Table 5.1 USB-RS422-WE Cable Signal Descriptions 5.3 USB-RS422-WE Electrical Parameters Parameter Description Receiver Input Common-mode input VCM voltage range IN Minimum Typical Maximum Units +12 V -7 Input Current 1.0 –0.8 mA Differential Threshold -0.2 +0.2 V Voltage,VTH VIHYST Input Hysteresis 20 mV Input Resistance, RIN 12 15 kΩ RIN Transmitter Output DIfferential Output VOD 1.5 5 V Voltage, dVOD Table 5.2 USB-RS422-WE I/O Characteristics Conditions VIN = +12V VIN = –7V VTH With RL = 54Ω. CL = 50pF * * - The 54 ohms is the equivalent of two 120 ohm termination resistors placed on each side of the transmission line and the input impedance of 32 receivers on the line. Description Conditions Minimum RS-422 Inputs and Outputs EN61000-4-2ContactDischarge RS-422 Inputs and Outputs EN61000-4-2AirGapDischarge RS-422 Inputs and Outputs Table 5.3 USB-RS422-WE ESD Tolerance ESD HBM Copyright © Future Technology Devices International Limited Typical ±15 kV Maximum ±8 kV ±15 kV 7 USB TO RS422 SERIAL CONVERTER CABLE Datasheet Version 1.3 Document Reference No.: FT_000116 Clearance No.: FTDI# 74 6 Cable PCB Block Diagram The block diagram for the small internal electronic circuit board, utilising the FTDI FT232R, which is encapsulated into the USB connector end of the cable, is shown in Figure 6.1. Customised versions of the cable are also available. Users interested in customised versions of these cables should contact FTDI sales (sales1@ftdichip.com). VBUS USB A CONNECTOR USB_DM USB_DP GND TxD TxD+ RxDRxD+ RTSRTS+ CTSCTS+ TXD FT232R RXD RTS Transceiver CTS GND Wire Ended Figure 6.1 Block diagram of PCB Used in the USB to RS422 Serial Converter Cable Copyright © Future Technology Devices International Limited 8 USB TO RS422 SERIAL CONVERTER CABLE Datasheet Version 1.3 Document Reference No.: FT_000116 Clearance No.: FTDI# 74 7 USB-RS422 Schematic The detailed schematic of Converter Cable USB-RS422 is shown in Figure 7.1. Figure 7.1 Schematic for USB-RS422 Converter Cable Copyright © Future Technology Devices International Limited 9 USB TO RS422 SERIAL CONVERTER CABLE Datasheet Version 1.3 Document Reference No.: FT_000116 Clearance No.: FTDI# 74 8 Contact Information Head Office – Glasgow, UK Branch Office – Tigard, Oregon, USA Future Technology Devices International Limited 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 Future Technology Devices International Limited (USA) 7130 SW Fir Loop Tigard, OR 97223-8160 USA Tel: +1 (503) 547 0988 Fax: +1 (503) 547 0987 E-mail (Sales) E-mail (Support) E-mail (General Enquiries) E-mail (Sales) E-mail (Support) E-mail (General Enquiries) sales1@ftdichip.com support1@ftdichip.com admin1@ftdichip.com us.sales@ftdichip.com us.support@ftdichip.com us.admin@ftdichip.com Branch Office – Taipei, Taiwan Branch Office – Shanghai, China Future Technology Devices International Limited (Taiwan) 2F, No. 516, Sec. 1, NeiHu Road Taipei 114 Taiwan , R.O.C. Tel: +886 (0) 2 8797 1330 Fax: +886 (0) 2 8791 3576 Future Technology Devices International Limited (China) Room 1103, No. 666 West Huaihai Road, Shanghai, 200052 China Tel: +86 21 62351596 Fax: +86 21 62351595 E-mail (Sales) E-mail (Support) E-mail (General Enquiries) E-mail (Sales) E-mail (Support) E-mail (General Enquiries) tw.sales1@ftdichip.com tw.support1@ftdichip.com tw.admin1@ftdichip.com cn.sales@ftdichip.com cn.support@ftdichip.com cn.admin@ftdichip.com Distributor and Sales Representatives Please visit the Sales Network page of the FTDI Web site for the contact details of our distributor(s) and sales representative(s) in your country. Vinculum is part of Future Technology Devices International Ltd. 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 c onsent 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 pro duct 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, Unit 1, 2 Seaward Place, Centurion Business Park, Glasgow G41 1HH United Kingdom. Scotland Registered Number: SC136640 Copyright © Future Technology Devices International Limited 10 USB TO RS422 SERIAL CONVERTER CABLE Datasheet Version 1.3 Document Reference No.: FT_000116 Clearance No.: FTDI# 74 Appendix A - Cable EEPROM Configuration Each USB-RS422 cable is controlled by the FTDI FT232R IC. This FT232R device contains an EEPROM which contains the USB configuration descriptors for that device. When the cable is plugged into a PC or a USB reset is performed, the PC will read these descriptors. The default values stored into the internal EEPROM are defined in Table 0.1. Parameter USB Vendor ID (VID) USB Product UD (PID) Serial Number Enabled? Value 0403h 6001h Yes Serial Number See Note Pull down I/O Pins in USB Suspend Disabled Manufacturer Name Product Description Max Bus Power Current Power Source Device Type USB Version 0200 Disabled High Current I/Os Enabled Load VCP Driver Enabled TXD RXD RTS# CTS# A unique serial number is generated and programmed into the EEPROM during device final test. Enabling this option will make the device pull down on the UART interface lines when the power is shut off (PWREN# is high). FTDI See note 90mA Bus Powered FT232R Remote Wake Up Invert Invert Invert Invert Notes FTDI default VID (hex) FTDI default PID (hex) Disabled Disabled Disabled Disabled Table 0.1 Default USB-RS422-WE Returns USB 2.0 device description to the host. Note: The device is a USB 2.0 Full Speed device (12Mb/s) as opposed to a USB 2.0 High Speed device (480Mb/s). Enables the high drive level on the UART and CBUS I/O pins. Makes the device load the VCP driver interface for the device. Signal on this pin becomes TXD# if enable. Signal on this pin becomes RXD# if enable. Signal on this pin becomes RTS if enable. Signal on this pin becomes CTS if enable. Internal EEPROM Configuration The internal EEPROM in the cable can be re-programmed over USB using the utility program FT_Prog. FT_Prog can be downloaded from http://www.ftdichip.com/Support/Utilities.htm#FT_Prog. Users who do not have their own USB Vendor ID but who would like to use a unique Product ID in their design can apply to FTDI for a free block of unique PIDs. Contact FTDI support for this service. Copyright © Future Technology Devices International Limited 13 USB TO RS422 SERIAL CONVERTER CABLE Datasheet Version 1.3 Document Reference No.: FT_000116 Clearance No.: FTDI# 74 Appendix B - References Document References DS_FT232R AN232R-02 Acronyms and Abbreviations Terms Description COM General Purpose Input/output DLL Dynamic Link Library EEPROM Serial Peripheral Interconnect EHCI Enhanced Host Controller Interface FPGA Field Programmable Gate Array HBM Human Body Model LED Light Emitting Diode OHCI Open Host Controller Interface RoHS Restriction of Hazardous Substance Directive USB Universal Serial Bus UART Universal Asynchronous Receiver Transmitter UHCI Universal Host Controller Interface VCP Virtual COM Port Copyright © Future Technology Devices International Limited 14 USB TO RS422 SERIAL CONVERTER CABLE Datasheet Version 1.3 Document Reference No.: FT_000116 Clearance No.: FTDI# 74 Appendix C - List of Figures and Tables List of Figures Figure 1.1 Using the USB-RS422 Cable ............................................................................................ 1 Figure 5.1 USB-RS422-WE Connections ........................................................................................... 6 Figure 5.2 USB-RS422-WE Mechanical Details (dimensions in mm) ..................................................... 6 Figure 5.3 USB-RS422-WE Cable images ......................................................................................... 6 Figure 6.1 Block diagram of PCB Used in the USB to RS422 Serial Converter Cable ............................... 8 Figure 7.1 Schematic for USB-RS422 Converter Cable ....................................................................... 9 List of Tables Table 2.1 USB-RS422 Cables Descriptions and Part Numbers ............................................................. 2 Table 5.1 USB-RS422-WE Cable Signal Descriptions .......................................................................... 7 Table 5.2 USB-RS422-WE I/O Characteristics ................................................................................... 7 Table 5.3 USB-RS422-WE ESD Tolerance ......................................................................................... 7 Table 0.1 Default Internal EEPROM Configuration............................................................................ 13 Copyright © Future Technology Devices International Limited 15 USB TO RS422 SERIAL CONVERTER CABLE Datasheet Version 1.3 Document Reference No.: FT_000116 Clearance No.: FTDI# 74 Appendix D - Revision History Document Title: DS_USB_RS422_CABLES Document Reference No.: FT_000116 Clearance No.: FTDI# 74 Product Page: http://www.ftdichip.com/FTProducts.htm Document Feedback: Send Feedback Revision Changes Date 1.0 Initial Release 2009-02-11 1.1 Corrected Images 2009-05-14 1.2 Updated TT to BT (Transparent to black cable; Added Windows Support 7 2010-01-18 1.3 Corrected Wire Gauge to 28AWG; Updated US and CN address 2020-05-21 Copyright © Future Technology Devices International Limited 16