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Document Reference No.: FT_000151
DS_US232R-10(R-100/500) USB TO RS232 ADAPTER CABLE Data Sheet
Version 1.11
Clearance No.: # 99
1.4 Block Diagram
USB A
Connector
Cable 10cm
or 100 cm
FTDI FT232R
USB Serial Bridge
RS232
Level Shifter
RS232
DE-9P
Connector
Figure 1-1 Block diagram
1.4.1 Block description
USB A Connector
This connector provides the interface for connection to a USB Host or Hub port
Cable
The US232R cable is available in three lengths 10cm – Part number US232R-10, 100cm - Part
number US232R-100 and 500cm - Part number US232R-500.
FTDI FT232R
The FTDI FT232R provides the USB-to-Serial conversion. Operating system device drivers are
required in order to work with the FT232R to provide the Virtual COM Port serial functionality.
RS232 Level Shifter
The RS232 level shifter converts the signals provided by the FT232R into the voltage levels
required by RS232 devices.
DE-9P Connector (Male)
The DE-9P connector is configured in an industry standard (TIA/EIA-574) pin-out to provide
connection to RS232 peripherals through standard cables. See section 3.3.2
Copyright ? 2011 Future Technology Devices International Limited
7
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