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Document Reference No.: FT_000132
USB-COM485-PLUS1 Datasheet
Version 1.21
Clearance No.: FTDI# 95
1
Introduction
1.1 Functional Description
The USB-COM-Plus modules are a family of communication devices. This model, USB-COM485-Plus1,
provides a simple method of adapting legacy serial devices with RS485 interfaces to modern USB ports.
This is accomplished by incorporating the industry standard FTDI FT232R USB-Serial bridge chip.
The integrated electronics of the USB-COM485-PLUS1 utilise the FTDI FT232R and includes RS485 level
shifters plus 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.
Pin 9 of the DE-9P connector can provide +5V DC at 250mA.
The USB-COM485-Plus1 module requires USB device drivers, available free from www.ftdichip.com , which
are used to make the USB-COM485-Plus1 appear as a Virtual COM Port (VCP). This allows existing serial
communications software, such as HyperTerminal, to exchange data through the USB-COM485-Plus1 to a
legacy RS485 peripheral device.
Copyright ? 2010 Future Technology Devices International Limited
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相关代理商/技术参数
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:
USB-COM485-PLUS-2 制造商:Future Technology Devices International (FTDI Chip) 功能描述:USB TO A DUAL INTERFACE RS485 LEVEL SERIAL UART ADAPTOR 制造商:Future Technology Devices International (FTDI Chip) 功能描述:MODULE DEV USB-RS485 2 COM PORT 制造商:Future Technology Devices International (FTDI Chip) 功能描述:MOD, USB HS TO RS485, 2 CH, FT2232H 制造商:Future Technology Devices International (FTDI Chip) 功能描述:MODULE, USB HS TO RS485 CONV, 2 COM PORT, FT2232H; ;ROHS COMPLIANT: YES
USB-COM485-PLUS4 功能描述:界面模块 USB HS to RS485 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-COM485-PLUS-4 制造商:Future Technology Devices International (FTDI Chip) 功能描述:USB TO A QUAD INTERFACE RS485 LEVEL SERIAL UART ADAPTOR 制造商:Future Technology Devices International (FTDI Chip) 功能描述:MODULE DEV USB-RS485 4 COM PORT 制造商:Future Technology Devices International (FTDI Chip) 功能描述:MODULE, DEV, USB-RS485, 4 COM PORT; Kit Features:Works with USB 1.1 & 2.0 Host and Hub Ports, FIFO: 2KB Transmit Buffer, 2KB Receive Buffer; MCU Supported Families:FT232R, FT2232, FT232BM; Type:Development Module ;RoHS Compliant: Yes
USB-COMI 制造商:MEILHAUS 功能描述:CONVERTER, USB-IF, 1 PORT 制造商:MEILHAUS 功能描述:CONVERTER, USB-IF, 1 PORT; Convert From:USB; Convert To:RS422/485; SVHC:No SVHC (18-Jun-2012); Frequency Measuring Range:921.6kbps; Interface Type:USB to RS422/RS485; Series:USB-COM
USB-COMI-SI 制造商:MEILHAUS 功能描述:CONVERTER, USB-IF, 1 PORT 制造商:MEILHAUS 功能描述:CONVERTER, USB-IF, 1 PORT; Convert From:USB; Convert To:RS422/485; SVHC:No SVHC (18-Jun-2012); Frequency Measuring Range:921.6kbps; Interface Type:USB to RS422/RS485 incl. Isolation; Series:USB-COM
USB-CONFIG-MKII 制造商:Status Instruments Ltd 功能描述:CONFIG TOOL FOR HTR & 1603 SERIES