Plugging the USB Eight Port Serial Adapter to the USB port, the adapter is automatically detected and installed. There are no IRQ & COM port conflicts, since the ports do not require any additional IRQ, DMA, memory as resources on the system. The USB Eight Port Serial Adapter is self-powered and does not require any external power adapters

The RS-232, or RS-422/485 port functions as a native Windows COM port. It is compatible with Windows serial communication applications, each port is individually configurable.

Features and Specifications

• Adds two high speed RS-422/485 ports via USB connection.
• 384 byte receive buffer.
• 128 byte transmit buffer for high data throughput.
• Auto transmit buffer control for RS-485.
• Data rates: 300 bps to 230K bps.
• Serial connector: Two DB-9 male connectors.
• Easy connectivity to printers, POS, Industrial control devices.
• Data signals: TX-, TX+, RX+, RX-, GND, RTS-, RTS+, CTS+, CTS-.
• Self-powered. External power supply included.