Copyright © 2010 Future Technology Devices International Limited

12

Document Reference No.: FT_000136

USB-COM485-PLUS2 Datasheet

Version 1.3

Clearance No.: FTDI#104

3 Connections

3.1 External Connectors

3.1.1 USB

The USB-COM485-PLUS2 is a downstream USB 2.0 Device. A standard USB mini type “B” receptacle is

mounted inside the USB-COM485-PLUS2 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

No connected

5

Ground

GND = USB signal ground

Shield

Case Ground

Drain = typically connected to the host PC case

Table 3.1 – USB mini type "B" Receptacle Pin-Out