
USB to RS422/485 4-Port DB9 Serial Adapter/Converter Multi-4/USB Combo
The SystemBase Multi-4/USB COMBO lets you easily and quickly add additional serial ports to your system through the USB port. The Multi-4/USB delivers maximum performance up to 921.6Kbps. Combine that with the need for fewer components and you get cost-effective and reliable connections to your serial devices. The USB to Serial Multi-4 supports most Windows and Linux operating systems and includes 15,000 volt surge suppression, eliminating blown ports. The Multi-4/USB includes a 4 port panel with a DB9 connector and is available in two models, RS232 and RS422/RS485. Simply plug in the USB connector and you have a COM port to connect modems, printers, bar-code scanners, or any other serial devices. Features Latching USB to 4 ports Serial (male) Adapter/Converter RS422/485 Interface Provides the function of selecting RS422/RS485 communication mode for each port Supports USB Rev. 2.0 Communication speed: Up to 921.6kbps Display communication status via TX/RX LED Auto Togging: Automatic control of BUS I/O for RS422/RS485 Slew-Rate Limit Control ±15kV Surge protection Connector Panel The Multi-4/USB plugs into the USB port on your system. The connector panel has four DB9 male connectors and is available with support for either RS232 or RS422/RS485. LEDs next to the connector provide visual communication status of the ports. No additional power supply is required. Supports USB Specification Revision 2.0 The Multi-4/USB supports revision 2.0 and is compatible with revision 1.1 15KV Surge Protection – Built-in Don’t risk blown ports and downtime. The Multi-4/USB has built-in 15,000-volt surge suppression to protect against electrical spikes and blown ports giving you more reliable communications. Specifications Interface Type USB Specification Rev. 2.0, Hi-Speed Serial Interface: RS422/RS485 (Selectable per port) Number of ports: 4 DB9 Maximum Speed: 921.6 kbps RS-422 Signal Lines: TXD+, TXD-, RXD+, RXD- RS-485 Signal Lines: TXD+, TXD- Surge Protection: 15KV Flow Control: XON/XOFF Data Crash Prevention: Auto-Toggling Hardware Controller: FT4232H Connector: DE-09P (DB-9 Male) Dimensions (W x L x H): 39 x 184.15 x 16.3 mm (1.54 x 7.25 x 0.64 inches) Software Supported OS: Windows 7/8/8.1/10 Windows Server 2008/2012 Linux Utility: TestView Operating Environment Operating Temperature: -20 ~ 70 °C Storing Temperature: -20 ~ 70 °C Humidity: 5 ~ 95% Non-Condensing Certifications Certifications KC, FCC, CE Package Includes: 1X Multi-4/USB COMBO,Download Guide, Warranty Policy Additional Resources: Multi-4/USB COMBO USB to RS-42/485 4-Port DB9 Serial Adapter/Converter Manual, Utilities and Specifications Downloads (SystemBase Website)