Optical Isolation and Surge Protection for RS-232/422/485 Ports The USB2-8COMi-SI-TB is a USB 2 to 8-port industrial serial adapter that protects you device(s) with optical Isolation, 15KV ESD protection and 600W surge protection over each port. It is designed to make RS-422 and RS-485 serial port expansion quick and simple through its terminal block connection. Our series of Industrial USB 2.0 to terminal block serial adapters supports RS-232, RS-422, and RS485 electrical protection per port and are designed with the user in mind. Supports 15KV ESD protection and 600W surge protection for all 8 serial signals Uses FTDI FT4232H USB 2.0 to quad UART chip Incorporates DIP switch control over each individual port. Per port protection from ESD and Surge Protection. Description 8 Optically Isolated and Surge Protected serial ports The USB2-8COMi-SI-TB is a USB 2 to 8-port industrial serial adapter that protects you device(s) with optical Isolation, 15KV ESD protection and 600W surge protection over each port. It is designed to make RS-422 and RS-485 serial port expansion quick and simple through its terminal block connection. All ports are controlled by DIP switches (8 4-pin DIP switches), each terminal block serial port can be individually designated for the signal your application demands. The USB 2 to 8-port serial adapter has an industrially designed metal case where the DIP switches are located within the bottom access panel. By connecting to the USB port on your computer or available USB hub, the USB to industrial serial adapter instantly adds eight RS-232/422/485 interface serial communication ports to your system while taking advantage of both the Plug-and-Play, and Hot-Plug features of the USB bus. The USB2-8COMi-SI-TB industrial serial adapter makes it very easy to add 8 protected industrial communication ports to your system though its terminal block interface with DIP switch controls. Product Features Supports USB 1.1 and USB 2.0 transfer speeds from 1.5 up to 480 Mbps, automatic link and speed detection. Adds eight high-speed RS-232/422/485 serial ports via USB connection. 2K byte receive buffer. 2K byte transmit buffer for high speed data throughput. Requires no IRQ, DMA, I/O port. Data rates: 300 bps to 921.6K bps. Each serial port supports 5-pin screw-lock-type terminal block connector. Auto-transmit buffer control for 2-wire RS-485 half-duplex operation. Biasing and Termination resistors installed on-board. Supports RS-232 3-wire signals: RxD, TxD, GND Supports RS-422, RS-485 4-wire signals: TxD-, TxD+, RxD+, RxD- Supports RS-485 2-wire signals: data-, data+ Monitor LEDS of TxD, RxD indicating port status AC to DC-12V, 1A switching power supply included Supports 3KV optical Isolation, 15KV ESD protection and 600W surge protection Virtual COM port drivers available for Windows 11, 10, 8.1, 8, 7 Industrial grade metal case with DIN-rail ears for Din-rail mounting. Chipset: Genesys GT852G 4-port USB 2.0 hub chip + FTDI FT4232H USB 2.0 to quad UART chip Item Dimensions: 192.42 x 122.22 x 23.60 mm (L×W×H), dimensions are to DIN rail(W), to power plug(L) Package Contents USB2-8COMi-SI-TB serial adapter Power adapter USB cable *Surface Mounting screws not included. Specifications Product Specifications Environmental Operating Temperature 0 to 60C Hardware Chipset FTDI Software OS Support Win 11, Win 10, Win 7, Win 8, Win 8.1 Serial Attributes Serial Standards RS232, RS422, RS485 USB USB Type USB 2.0 Mechanical Color Black Mounting Style Din-Rail Ports 8 Serial Ports, 1 USB Port Compliance Country of Origin Taiwan Certifications CE, FCC Compliance RoHS, TAA Other Data Connector 5-Pin Terminal Block Weight 2.12 lbs Dimensions 11.250 × 5.687 × 2.500 in UPC: 736983902467