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Document Reference No.: FT_000148
USB-COM232-PLUS4 Datasheet
Version 1.2
Clearance No.: FTDI# 97
1
Introduction
1.1 Functional Description
The USB-COM-Plus modules are a family of communication devices. This model, USB-COM232-PLUS4,
provides a simple method of adapting four legacy RS232 serial devices to a modern USB port. This is
accomplished by incorporating the industry standard FTDI FT4232H USB2.0 Hi-Speed serial bridge chip.
The integrated electronics of the USB-COM232-PLUS4 utilise the FTDI FT4232H plus four RS232 level
shifters and TXD/RXD LEDs to provide a visual indication of data traffic through the module.
Figure 1.1 USB-COM232-PLUS4
The module uses a standard USB-MINIB device connector for connection to an upstream host or hub
port. RS232-level signals, including modem handshake signals, are available on an industry-standard
DE-9P connector. The maximum RS232-level data rate is 1Mbps.
The USB-COM232-PLUS4 module requires USB device drivers, available free from www.ftdichip.com,
which are used to make the USB-COM232-PLUS4 appear as four Virtual COM Ports (VCP). This allows
existing serial communications software, such as HyperTerminal, to exchange data through the USB-
COM232-PLUS4 to a legacy RS232 peripheral device.
1.2 LED Description
The USB-COM232-PLUS4 uses nine LEDs to indicate a valid link as well as data traffic according to the
following table:
LED
Colour
Yellow
Green
Red
Function
Enumerated
TxD Activity
RxD Activity
Description
ON when USB-COM-Plus is configured and ready
Flashes when data is transmitted from the USB-COM232-PLUS4 to
the attached RS232 device
Flashes when data is transmitted from the attached RS232 device to
the USB-COM232-PLUS4
quantity
1
4
4
Table 1.1 – LED Description
1.3 Block Diagram
Copyright ? 2010 Future Technology Devices International Limited
1
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相关代理商/技术参数
USB-COM232-PLUS-4 制造商:Future Technology Devices International (FTDI Chip) 功能描述:COMMUNICATION DEVICES PROVIDE A SIMPLE METHOD OF ADAPTING FOUR LEGACY RS232 SERIAL DEVICES TO A MODERN USB PORT. 制造商:Future Technology Devices International (FTDI Chip) 功能描述:MODULE DEV USB-RS232 4 COM PORT 制造商:Future Technology Devices International (FTDI Chip) 功能描述:MOD, USB HS TO RS232, 4 CH, FT4232H 制造商:Future Technology Devices International (FTDI Chip) 功能描述:MODULE, USB HS TO RS232 CONV, 4 COM PORT, FT4232H; ;ROHS COMPLIANT: YES
USB-COM-2SM 制造商:ADL 制造商全称:ADL 功能描述:Enclosure and multifunction module
USB-COM422-PLUS1 功能描述:界面模块 USB to RS422 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-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