Copyright © 2010 Future Technology Devices International Limited

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Document Reference No.: FT_000204

DB9-USB-RS232 Datasheet

Version 1.2

Clearance No.: FTDI# 130

2 Connections

2.1.1 USB

The DB9-USB-RS232 module is a downstream USB 2.0 Device. A “USB mini B” receptacle is mounted

inside the module 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