USB-COM422-PLUS-4 FTDI, USB-COM422-PLUS-4 Datasheet - Page 4

• Manufacturer Part Number: USB-COM422-PLUS-4
• Description: MODULE, DEV, USB-RS422, 4 COM PORT
• Manufacturer: FTDI
• Type: Developmentr

Specifications of USB-COM422-PLUS-4

• Mcu Supported Families: FT232R, FT2232, FT232BM
• Kit Features: Works With USB 1.1 & 2.0 Host And Hub Ports, FIFO
• Svhc: No SVHC (18-Jun-2010)
• 2.0 Host And Hub Ports, Fifo: 2KB Transmit Buffer, 2KB Receive Buffer
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

1.3
Figure 1.2 USB-COM422-PLUS4 Block Diagram
1.3.1 Block description
USB Mini B 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 FT4232H
FT4232H Hi-Speed USB2.0 (480Mb/s) is a quad serial UART interface IC device. Operating system device
drivers are required in order to work with the one to provide the Virtual COM Port serial functionality.
Quad RS422 Level Shifter
The RS422 level shifter converts the signals provided by the FT4232H into the voltage levels required by
RS422 devices.
Quad DE-9P Connector (Male)
The DE-9P connector is configured in an industry standard (TIA/EIA-574) pin-out to provide connection to
RS422 peripherals through standard cables. See section 3.1.2
USB miniB
Connector
Client
Block Diagram
Channel D
Channel A Channel B
USB Serial Bridge
FTDI FT4232H
High-Speed
Copyright © 2010 Future Technology Devices International Limited
Channel C
Level Shifter
Level Shifter
Level Shifter
Level Shifter
RS422
RS422
RS422
RS422
Connector
Connector
Connector
Connector
DE-9P
DE-9P
DE-9P
DE-9P
A
B
C
D
Document Reference No.: FT_000152
USB-COM422-PLUS4 Datasheet
Clearance No.: 107
Version 1.1
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