Future Technology Devices International Ltd
USB-COM232-PLUS2
Datasheet
Document Reference No.:
FT_000147
Version 1.1
Issue Date: 2010-04-12
Future Technology Devices International Ltd (FTDI)
Unit 1, 2 Seaward Place, Centurion Business Park, Glasgow, G41 1HH, United Kingdom
Tel.: +44 (0) 141 429 2777
Fax: + 44 (0) 141 429 2758
E-Mail (Support): support1@ftdichip.com Web: http://www.ftdichip.com
Neither the whole nor any part of the information contained in, or the product described in this manual, may be adapted or reproduced
in any material or electronic form without the prior written consent of the copyright holder. This product and its documentation are
supplied on an as-is basis and no warranty as to their suitability for any particular purpose is either made or implied. Future Technology
Devices International Ltd will not accept any claim for damages howsoever arising as a result of use or failure of this product. Your
statutory rights are not affected. This product or any variant of it is not intended for use in any medical appliance, device or system in
which the failure of the product might reasonably be expected to result in personal injury. This document provides preliminar y
information that may be subject to change without notice. No freedom to use patents or other intellectual property rights is implied by
the publication of this document. Future Technology Devices International Ltd, Unit1, 2 Seaward Place, Centurion Business Park,
Glasgow, G41 1HH, United Kingdom. Scotland Registered Number: SC136640
Copyright © 2010 Future Technology Devices International Limited
Document Reference No.: FT_000147
USB-COM232-PLUS2 Datasheet
Version 1.1
Clearance No.: FTDI#
96
1
Introduction
1.1
Functional Description
The USB-COM232-PLUS modules are a family of Hi-Speed communication devices. This model, USB-
COM232-PLUS2, provides a simple method of adapting two legacy RS232 serial devices to a modern USB
port. This is accomplished by incorporating the industry standard FTDI FT2232H USB2.0 Hi-Speed serial
bridge chip.
The integrated electronics of the USB-COM232-PLUS2 utilise the FTDI FT2232H plus two RS232 level
shifters and TXD/RXD LEDs to provide a visual indication of data traffic through the module.
Figure 1.1 USB-COM232-PLUS2
The module uses a standard USB-miniB device connector for connection to an upstream host or hub port.
RS232-level signals, including modem handshake signals, are available on an industry-standard DE-9P
connector. The maximum RS232-level data rate is 1Mbps.
The USB-COM232-PLUS2 module requires USB device drivers, available free from www.ftdichip.com,
which are used to make the USB-COM232-PLUS2 appear as two Virtual COM Port (VCP). This allows
existing serial communications software, such as HyperTerminal, to exchange data through the USB-
COM232-PLUS2 to a legacy RS232 peripheral device.
Copyright © 2010 Future Technology Devices International Limited
1
Document Reference No.: FT_000147
USB-COM232-PLUS2 Datasheet
Version 1.1
Clearance No.: FTDI#
96
1.2
LED Description
The USB-COM232-PLUS2 uses five LEDs to indicate a valid link as well as data traffic according to the
following table:
LED
Colour
Yellow
Function
Description
quantity
Enumerated
ON when USB-COM-PLUS2 is configured and ready
1
Red
TxD Activity
Flashes when data is transmitted from the
USB-COM232-PLUS2
to
the attached RS232 device
Flashes when data is transmitted from the attached RS232 device to the
2
Green
RxD Activity
USB-COM232-PLUS2
2
Table 1.1 – LED Description
1.3
Block Diagram
RS232
Level Shifter
DE-9P
Connector
USB miniB
Client
Connector
FTDI FT2232H
USB Serial Bridge
RS232
Level Shifter
DE-9P
Connector
Figure 1.2 USB-COM232-PLUS2 Block Diagram
1.3.1 Block description
USB miniB Client Connector
This connector provides the interface for connection to a USB Host or Hub port. The maximum cable
length is 5 meters, according to the USB 2.0 specification.
FTDI FT2232H
The FTDI FT2232H provides the USB-to-Serial conversion. Operating system device drivers are required
in order to operate with the FT2232H to provide dual Virtual COM Port serial functionality.
RS232 Level Shifter
The RS232 level shifter converts the signals provided by the FT2232H into the voltage levels required by
RS232 devices.
DE-9P Connector (Male)
The DE-9P connector is configured in an industry standard (TIA/EIA-574) pin-out to provide connection to
RS232 peripherals through standard cables. See section 3.1.2
Copyright © 2010 Future Technology Devices International Limited
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Document Reference No.: FT_000147
USB-COM232-PLUS2 Datasheet
Version 1.1
Clearance No.: FTDI#
96
1.4
Features
Adds two RS-232 serial ports by connecting to USB
Easy plug & play installation and RS-232 device connection
Provide USB2.0 Hi-Speed(480Mbps) interface and works with USB 1.1 & 2.0 Host and Hub ports
Industry Standard FTDI chip set & device drivers for maximum compatibility
Microsoft Windows
®
WHQL-certified, Mac OS X, Linux and Windows CE device drivers
Installs as two standard Windows COM ports
COM port number can be changed to any available COM port number, including COM1 to COM4,
to support HyperTerminal, or any other serial communications software application running in
Windows
Supports Windows Server 2008, 2003, Vista, XP 2000, Linux, Mac OS X
FIFO: 4K byte transmit buffer, 4K byte receive buffer
RS-232 data signals: TxD, RxD, RTS, CTS, DTR, DSR, DCD, RI, GND
Powered by USB port. No external power adapter required.
Serial port speed up to 1Mbps
Serial Communication Parameters
o
o
o
Parity: None, Even, Odd
Data bits: 7, 8
Flow control: RTS/CTS , DTR/DSR, X-ON/X-OFF, None
Two DE-9P male connectors
LEDs indicate USB Enumeration, RxD, TxD for monitoring port status & easy diagnostics
Operating temperature of -40°C to +85°C
1.5
Performance Figures
Parameter
Performance
USB Interface
480Mbps USB 2.0 Hi-Speed
Standard Windows baud rates (300bps to 921.6Kbps)
RS232 Interface
Custom baud rates (300bps to 1Mbps) through baud rate aliasing. See
FTDI Application Note: AN232B-05
Configuring FT232R, FT2232 and
FT232BM Baud Rates
Table 1.2 - Performance Figures
Part Number
USB-COM232-PLUS2
Description
USB-COM-PLUS2 Hi-Speed USB to 2-Port RS232 module
Table 1.3 - Ordering Information
Copyright © 2010 Future Technology Devices International Limited
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Document Reference No.: FT_000147
USB-COM232-PLUS2 Datasheet
Version 1.1
Clearance No.: FTDI#
96
1
Introduction ................................................................................... 1
1.1
1.2
1.3
1.4
1.5
Functional Description .................................................................................. 1
LED Description ............................................................................................. 2
Block Diagram ............................................................................................... 2
Block description ....................................................................................... 2
Features ........................................................................................................ 3
Performance Figures ..................................................................................... 3
1.3.1
2
Installation ..................................................................................... 6
2.1
2.2
Example Applications and Configurations ..................................................... 6
Wiring ...................................................................................................... 6
Microsoft Windows ..................................................................................... 7
Mac OS X, Linux, Windows CE ................................................................... 11
Device Driver Installation ............................................................................. 7
2.1.1
2.2.1
2.2.2
3
Connections .................................................................................. 12
3.1
External Connectors .................................................................................... 12
USB ....................................................................................................... 12
RS232 .................................................................................................... 12
3.1.1
3.1.2
4
Electrical details ........................................................................... 13
4.1
4.2
USB ............................................................................................................. 13
RS232 ......................................................................................................... 13
5
6
Mechanical Details ........................................................................ 14
5.1
Module Mechanical Dimensions ................................................................... 14
Physical Environment Details ....................................................... 15
6.1
6.2
Storage ....................................................................................................... 15
Operating .................................................................................................... 15
7
Environmental Approvals & Declarations ...................................... 16
7.1
7.2
7.3
7.4
7.5
EMI Compatibility ........................................................................................ 16
Safety.......................................................................................................... 16
Environmental ............................................................................................. 16
Reliability .................................................................................................... 16
MTTF ..................................................................................................... 16
Import / Export Information ....................................................................... 17
7.4.1
8
Troubleshooting ........................................................................... 18
8.1
8.2
8.3
Hardware .................................................................................................... 18
Device Driver .............................................................................................. 18
Technical Support ....................................................................................... 19
9
Contact Information ..................................................................... 20
Copyright © 2010 Future Technology Devices International Limited
4
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