StarTech 2 Port USB to RS232/422/485 Serial Adapter with COM Retention, Gray

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.

• 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

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 2-year warranty and free lifetime technical support.

Applications
• Adapting and expanding POS systems
• Great for Industrial programmers looking to test new code with serial devices
• Connect serial RS232, RS422 or RS485 devices to notebooks or tablet PC's through the USB port
• Perfect for controlling, monitoring and diagnosing manufacturing machines (CNC, Process Control
• Equipment, Bar Code Scanners, Serial Printers)
• Security device control (key panels, cameras, card readers)

Advantage
• 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