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Black USB to DB9 industrial adapter with FTDI chip and status LEDs

USBGear

USBGear USB 2.0 Industrial Adapter RS232/422/485 FTDI Chip

SKU CH-AECW-THZHF

Adds a selectable RS-232, RS-422 or RS-485 serial port via USB 2.0 with FTDI chip, 921.6K bps max speed and 10KV surge protection

  • ColorBlack
  • Changer TypeUSB to DB9 (RS232/422/485)
  • Adds RS-232/422/485 serial port via USB connection
  • FTDI chip delivers full modem control and flow control
  • Baud rates up to 921.6K bps for RS-232 operation
  • Power, TxD, RxD LEDs simplify port monitoring and diagnostics
  • 10KV surge protection shields the serial port from transients

USBGear USB 2.0 Industrial Adapter

This USBGear adapter adds one selectable RS-232, RS-422 or RS-485 serial port through a USB 2.0 connection. It uses an FTDI chip and supports data rates from 300 bps to 1M bps with a 384 byte receive buffer and 128 byte transmit buffer. The DB9 male connector provides full RS-232 modem control signals and hardware or software flow control. Surge protection of 10KV protects the serial port in harsh environments.

Check host port and operating system support

Verify that your computer has an available USB 1.1 or 2.0 host port for connection. The adapter requires no IRQ, DMA or I/O port resources on the host system. Ensure your operating system supports FTDI drivers for the virtual COM port assignment which can be changed to any required COM port number. The device draws power directly from the USB bus so no external supply is needed.

LEDs and on-board resistors aid diagnostics

Power, TxD and RxD LEDs give immediate visual status for port monitoring and troubleshooting. On-board termination and bias resistors are installed for RS-485 operation removing the need for external components. Auto transmit buffer control handles 2-wire RS-485 half-duplex switching automatically. The package includes the adapter unit itself with no additional cables or software media supplied.

Highlights

  • Adds RS-232/422/485 serial port via USB connection
  • FTDI chip delivers full modem control and flow control
  • Baud rates up to 921.6K bps for RS-232 operation
  • Power, TxD, RxD LEDs simplify port monitoring and diagnostics
  • 10KV surge protection shields the serial port from transients

Specifications

ColorBlack
Changer TypeUSB to DB9 (RS232/422/485)

Questions about this item

Does the box include cables or drivers, or must I buy them separately?

The adapter ships with the DB9 male connector installed; a USB 1.1 or 2.0 host port supplies power and data so no external power supply is needed.

Should I pick RS-232, RS-422 or RS-485 for my device?

The adapter is user selectable — choose RS-232 for full modem control up to 921.6K bps, RS-422 for four-wire differential links, or RS-485 for two-wire half-duplex multi-drop networks.

Will the 921.6K bps headline speed hold in my industrial PC?

The FTDI chip supports 300 bps to 1M bps with a 384 byte receive buffer and 128 byte transmit buffer; actual throughput depends on host USB loading and cable length.

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