Datasheet

Copyright © 2011 Future Technology Devices International Limited 8
Document Reference No.: FT_000204
DB9-USB Datasheet
Version 2.1
Clearance No.: FTDI# 130
2 USB Connections
DB9-USB modules are downstream USB 2.0 Devices. A “USB mini B” receptacle is mounted inside the
modules to facilitate connection to an upstream USB Host or Hub.
Pin Number
Pin Type
Description
1
Power
VBUS – USB Power provided from upstream USB Host or Hub
2
Bidirectional
D– = USB data signal, negative polarity
3
Bidirectional
D+ = USB data signal, positive polarity
4
ID
Not Connected
5
Ground
GND = USB signal ground
Shield
Case Ground
Drain = typically connected to the host PC case
Table 2.1 – USB “mini-B” Receptacle Pin-Out