Introduction

The ICUSB2324852 2 Port USB to RS232 RS422 RS485 Serial Adapter with COM Retention lets you connect every type of serial device to your USB-enabled computer, whether it be for RS232, RS422, or RS485 communication. The adapter features a 9-pin (DB9) male and a 5-pin terminal block serial connector as well as dip-switch controls for easy port configuration with minimal software requirements. The adapter also supports using 2 ports simultaneously, including with mixed protocols; for example RS-232 on port 1, and RS-485 on port 2, or a number of other combinations.

For a convenient, and clean installation in office or industrial settings, the RS232/RS422/RS485 USB Adapter is wall-mountable and fully powered via the host USB connection, providing power to the attached serial device without requiring an external power adapter.

Backed by a StarTech.com 2-year warranty and free lifetime technical support.

Benefits

• This single adapter is compatible with any serial device protocol (RS232, RS422, and RS485), and even allows mixing protocols for simultaneous communication over both ports
• COM retention saves the assigned port settings for the device, so disconnecting/reconnecting is hassle-free
• USB Powered - no power outlet required, and no cumbersome AC adapter to carry around

Features

• Backwards compatible with USB 1.1
• USB-powered; No additional external power adapter required
• Both ports can function simultaneously with mixed or matched communication protocols
• Includes a bracket for wall mounting the USB to Serial adapter
• Features rugged screw-lock USB port to ensure cords are not accidentally disconnected
• Ability to rename devices for easy recognition
• COM Port assignments maintained after reboot
• Port 1 (DB9) configurable for RS232, RS422, or RS485; Port 2 (Terminal Block) configurable for RS422 or RS485
• Multiple interface modes, including: 4 wire RS422(TxD+/-, RxD+/-), and 2 wire RS485 (DATA+, DATA-)
• Supports RS-485 Auto Transceiver Turn Around by Unique Featured ATTA Hardware
• External power adapter can be used (not required) if your device needs extra power beyond what the USB host can provide
• Transmission Echo for RS485 collision detection
• USB to 2 Port Straight-Through RS232/422/485 Serial Adapter

Specification

Connector Type(s): USB Type-A (4 pin) USB 2.0 Male

External Ports: DB-9 (9 pin, D-Sub) Male

Terminal Block (5 Wire)

Operating Temperature: 0°C to 55°C (32°F to 131°F)

Storage Temperature: -20°C to 85°C (-4°F to 185°F)

Humidity: 5~95% RH

Ports: 2

Interface: Serial

Bus Type: USB 2.0

Port Style: External Hub

Chipset ID: FTDI - FT2232H

LED Indicators: Red - Power LED

Shipping (Package) Weight: 310 g [10.9 oz]

Serial Protocol: RS-232/422/485

Max Baud Rate: 921.6 Kbps

Data Bits: 7, 8

FIFO: 128 Bytes

Flow Control: Xon/Xoff, Hardware, and None

Parity: Odd, Even, Mark, Space, and None

Stop Bits: 1, 2

Color: Gray

Enclosure Type: Plastic

Product Length: 82.3 mm [3.2 in]

Product Width: 44.2 mm [1.7 in]

Product Height: 23.2 mm [0.9 in]

Product Weight: 300 g [10.6 oz]

Power Source: Not Included (not required for standard applications)

Output Voltage: 5 DC

Output Current: 0.385A

Center Tip Polarity: Positive

Plug Type: B

OS Compatibility: Windows CE (4.2, 5.0, 6.0), XP Embedded, 98SE, 2000, XP, Vista, 7, 8, 8.1, 10

Included in Package: Wall mounting bracket

USB to RS232/RS422/485 Adapter

USB A to B Cable

Driver CD

Installation Guide