Document Reference No.: FT_000151
DS_US232R-10(R-100/500) USB TO RS232 ADAPTER CABLE Data Sheet
Version 1.11
Clearance No.: #99
3 Installation
3.1 RS232 Connection Pin Out
Figure 3-1 RS232 DB9 Pin Out
DB9 Pin No.
Name
DCD
Type
Description
1
2
3
4
5
6
7
8
9
Input
Input
Output
Output
Gnd
Data Carrier Detect control input
RXDATA
TXDATA
DTR
Receive Asynchronous Data input.
Transmit Asynchronous Data output.
Data Terminal Ready control output / Handshake signal
Device groud supply pin.
GND
DSR
Input
Output
Input
Input
Data Set Ready control input / Handshake signal
Request To Send Control Output / Handshake signal
Clear to Send Control input / Handshake signal.
RTS
CTS
RI
Ring Indicator control input. When remote wakeup is
enabled in the FT232RL’s internal EEPROM taking RI#
low can be used to resume the PC USB host controller
from suspend.
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12
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