USB-COM422-PLUS1【PDF 7/23 页】MOD USB RS422 CONVERTER 1 CH

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Document Reference No.: FT_000131

USB-COM422-PLUS1 Datasheet

Version 1.1

Clearance No.: FTDI# 94

2

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-COM422-Plus1.

The USB-COM422-Plus1 follows EIA-422 standard as a Data Terminal Equipment (DTE) device. If the

RS42 2 equipment being connected is a Data Communication Equipment (DCE) device, it’s typical that a

straight-through cable can be used.

DTE Pin Number

1

2

3

4

5

6

7

8

9

Signal Name

TXD- = Transmit Data,

negative polarity

TXD+ = Transmit Data,

positive polarity

RXD+ = Receive Data,

positive polarity

RXD- = Receive Data,

negative polarity

GND = signal ground

RTS- = Request To Send,

negative polarity

RTS+ = Request To Send,

positive polarity

CTS+ = Clear To Send,

positive polarity

CTS- = Clear To Send,

Expected Connect Signal

RXD-

RXD+

TXD+

TXD-

GND

CTS-

CTS+

RTS+

RTS-

negative polarity

Table 2.1 RS422 DTE to DCE connection with straight-through cable

Some serial devices may require certain handshake signals be connected. Refer to your device manual

for cabling details.

2.2 Device Driver Installation

The USB-COM422-Plus1 module drivers are available for download from:

www.ftdichip.com

2.2.1 Microsoft Windows

With the device drivers being Windows Hardware Quality Labs (WHQL) certified, they are also available

through download directly from the Microsoft ? Windows ? Update service. This is the best choice when

Copyright ? 2010 Future Technology Devices International Limited

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相关代理商/技术参数

USB-COM422-PLUS-1 制造商:Future Technology Devices International (FTDI Chip) 功能描述:COMMUNICATION DEVICES PROVIDE A SIMPLE METHOD OF ADAPTING LEGACY SERIAL DEVICES WITH RS422 INTERFACES TO MODERN USB PORTS 制造商:Future Technology Devices International (FTDI Chip) 功能描述:MODULE DEV USB-RS422 1 COM PORT 制造商:Future Technology Devices International (FTDI Chip) 功能描述:MOD, USB FS TO RS422, 1 PORT, FT232R 制造商:Future Technology Devices International (FTDI Chip) 功能描述:MODULE, USB FS TO RS422 CONV, 1 COM PORT, FT232R; ;ROHS COMPLIANT: YES

USB-COM422-PLUS2 功能描述:界面模块 USB HS to RS422 Conv Assembly 2 DB9 Ports RoHS:否制造商:4D Systems 产品:Serial Converters 通道/端口数量: 数据速率: 接口类型:USB, UART 工作电源电压:3.3 V, 5 V 最大工作温度:

USB-COM422-PLUS-2 制造商:Future Technology Devices International (FTDI Chip) 功能描述:USB TO A DUAL INTERFACE RS422 LEVEL SERIAL UART ADAPTOR 制造商:Future Technology Devices International (FTDI Chip) 功能描述:MODULE DEV USB-RS422 2 COM PORT 制造商:Future Technology Devices International (FTDI Chip) 功能描述:MOD, USB HS TO RS422, 2 CH, FT2232H 制造商:Future Technology Devices International (FTDI Chip) 功能描述:MODULE, USB HS TO RS422 CONV, 2 COM PORT, FT2232H; ;ROHS COMPLIANT: YES

USB-COM422-PLUS4 功能描述:界面模块 USB HS to RS422 Conv Assembly 4 DB9 Ports RoHS:否制造商:4D Systems 产品:Serial Converters 通道/端口数量: 数据速率: 接口类型:USB, UART 工作电源电压:3.3 V, 5 V 最大工作温度:

USB-COM422-PLUS-4 制造商:Future Technology Devices International (FTDI Chip) 功能描述:USB TO A QUAD INTERFACE RS422 LEVEL SERIAL UART ADAPTOR 制造商:Future Technology Devices International (FTDI Chip) 功能描述:MODULE DEV USB-RS422 4 COM PORT 制造商:Future Technology Devices International (FTDI Chip) 功能描述:MOD, USB HS TO RS422, 4 CH, FT4232H 制造商:Future Technology Devices International (FTDI Chip) 功能描述:MODULE, USB HS TO RS422 CONV, 4 COM PORT, FT4232H; ;ROHS COMPLIANT: YES

USB-COM485-PLUS1 功能描述:界面模块 USB to RS485 Convrtr Assembly 1 DB9 Port RoHS:否制造商:4D Systems 产品:Serial Converters 通道/端口数量: 数据速率: 接口类型:USB, UART 工作电源电压:3.3 V, 5 V 最大工作温度:

USB-COM485-PLUS-1 制造商:Future Technology Devices International (FTDI Chip) 功能描述:COMMUNICATION DEVICES PROVIDE A SIMPLE METHOD OF ADAPTING LEGACY SERIAL DEVICES WITH RS485 INTERFACES TO MODERN USB PORTS 制造商:Future Technology Devices International (FTDI Chip) 功能描述:MODULE DEV USB-RS485 1 COM PORT 制造商:Future Technology Devices International (FTDI Chip) 功能描述:MOD, USB FS TO RS485, 1 PORT, FT232R 制造商:Future Technology Devices International (FTDI Chip) 功能描述:MODULE, USB FS TO RS485 CONV, 1 COM PORT, FT232R; ;ROHS COMPLIANT: YES

USB-COM485-PLUS2 功能描述:界面模块 USB HS to RS485 Conv Assembly 2 DB9 Ports RoHS:否制造商:4D Systems 产品:Serial Converters 通道/端口数量: 数据速率: 接口类型:USB, UART 工作电源电压:3.3 V, 5 V 最大工作温度: