AUM-300 (USB to RS-232 Adapter)
Features Specification
  • FTDI Chipset        : Type AUM300-F 
  • Prolific Chipset    : Type AUM300-P
  • Fully Compliant with USB Specification v2.0 (Full-Speed) 
  • UHCI / OHCI (USB1.1), EHCI (USB2.0), xHCI(USB3.0) Host Controller Compatible
  • Meets EIA/TIA-232F standards
  • Guaranteed 1000kbps transmission rate under loading
  • Three RS232 Driver / Five RS232 Receivers
  • Full-duplex transmitter and receiver (TXD and RXD)
  • Six MODEM control pins (RTS, CTS, DTR, DSR, DCD, and RI)
  • 5,6,7 or 8 data bits
  • Odd, Even, Mark, Space, or None parity mode
  • One, one and a half, or two stop bits
  • Parity error, frame error, and serial break detection
  • Programmable baud from 75 bps to 1M bps
  • Provides RS232 power down indicator pin
  • Works with
  • XP Embedded (XPe), Point--of-Service (WEPOS), and POS Ready
  • MAC OS 8/9, OSX
  • Linux/Android kernel 2.4.31 and above includes built-in driver
  •  -40C to 85 C Operating Temperature
  • ESD Protection for RS-232 I/O' +-15KV
  • RS-232 for DTE Mode
  • Weight :  15g
  • Dimensions (L*W*H) : 50 * 30 * 12 ( mm )  
DB-9  Pin assignment

Pin1 : DCD  <== IN

Pin2 : RXD   <== IN

Pin3  : TXD    ==>  OUT

Pin4  : DTR    ==>  OUT

Pin5  : GND

Pin6  : DSR    <== IN

Pin7  : RTS     ==>  OUT

Pin8  : CTS     <== IN

Pin9  : RI        <== IN

  • Existing PC COM Port software applications
  • Automatic hardware flow control with CTS/RTS or DSR/DTR
  • Automatic software flow control with XON/XOFF
  • Supports Remote Wake-up from RS232 input signals (RI, RXD, DSR, DCD, CTS)
  • Provides royalty-free Virtual COM Port (VCP) driver for:
  • Windows 2000, XP, Vista, and Windows Server 2003, 2008, 2008 R2 , Windows 7 / 8 /10
  • Windows CE4.2, 5.0, 6.0, and Windows Embedded Compact 7