Datasheet
  Copyright © 2011 Future Technology Devices International Limited  10 
Document Reference No.: FT_000204 
DB9-USB Datasheet 
Version 2.1 
Clearance No.: FTDI# 130 
Figure 3.2 – DB9-USB Male Connection illustration 
Figure 3.3 – DB9-USB Female Connection illustration 
DCD
DSR
RXD
 RTS
 TXD
CTS
 DTR
RI
 GND DB9 Pin5
DB9 Pin1
DB9 Pin6
DB9 Pin2
 DB9 Pin7
 DB9 Pin3
DB9 Pin8
 DB9 Pin4
DB9 Pin9
GND
TXD
RXD
DTR
DCD
DSR
RTS
CTS
RI
 GND DB9 Pin5
RI DB9 Pin9
DTR  DB9 Pin4
CTS DB9 Pin8
TXD  DB9 Pin3
RTS  DB9 Pin7
RXD DB9 Pin2
DSR
 DB9 Pin6
DCD DB9 Pin1
GND
RXD
TXD
RTS
CTS
DSR
DTR
RI
DCD










