Document Reference No.: FT_000204
DB9-USB Datasheet
Version 2.0
Clearance No.: FTDI# 130
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UART Connections
The PC compatible accepted electrical connections for male and female UART DB9 connectors are
illustrated in Figure 3.1 where the structure on the left is the top view of a male UART DB9 connector and
the structure on the right is the top view of a female UART DB9 connector.
Assuming a design follows these connection conventions, then an FTDI male or female DB9-USB
connector can be used to replace this UART DB9 connector to turn this port into an active USB interface.
GND
5
5
GND
RI
DTR
CTS
4
GND
DTR
9
RI
8
9
RI
8
GND
DTR
4
RI
DSR
RTS
TXD
3
CTS
MALE
FEMALE
CTS
3
RXD
RTS
TXD
7
7 TXD
CTS
RXD
DSR
DCD
2
1
RXD
RTS
6
DSR
RTS
6
DSR
RXD
2
1
TXD
DTR
DCD
DCD
DCD
DTE
PCB
PCB
DCE
Figure 3.1 – Male and Female DB9-USB internal connections (top view looking through the module)
Examples and signal directions are shown in Figure 3.2 and Figure 3.3
Copyright ? 2011 Future Technology Devices International Limited
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相关代理商/技术参数
DB9-USB-D3-M 功能描述:界面模块 USB Mini-B Male 3.3V DB9 Interface 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:
DB9-USB-D5-F 功能描述:界面模块 USB Mini-B Female 5V DB9 interface 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:
DB9-USB-D5-M 功能描述:界面模块 USB Mini-B Male 5V DB9 Interface 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:
DB9-USB-F 功能描述:界面模块 USB to RS232 Legacy Adapter DB9 Female 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:
DB9-USB-M 功能描述:界面模块 USB to RS232 Legacy Adapter DB9 Male 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:
DB9-USB-RS232 制造商:FTDI 制造商全称:FTDI 功能描述:DB9-USB-RS232 Module Male & Female
DB9W4P300A00LF 功能描述:D-Sub混合触点连接器 DSUB PWR STB 9W4 PIN RoHS:否 制造商:FCI 触点布置: 位置/触点数量: 安装风格:Through Hole 安装角: 端接类型:Solder
DB9W4P500G00LF 功能描述:D-Sub混合触点连接器 DSUB PWR STB 9W4 PIN RoHS:否 制造商:FCI 触点布置: 位置/触点数量: 安装风格:Through Hole 安装角: 端接类型:Solder