Prolific PL2303GT USB to RS232 Serial 3Poles 3.5mm Stereo Audio Jack Plug Adapter Converter Data Transmission Cable
3.5mm 3P audio jack male
PL2303GT chip GND, TXD, RXD optional
PC COM RS232 standard signals, not TTL
Standard Pinout: Tip-RX, Ring-TX, Sleeve-GND
Customize Pinout: Tip-TX,Ring-RX,Sleeve-GND
Important Notice: RX is match with your TX of device. TX is match with your RX of device.
PL2303GT driver download Cable:
3C*28AWG,black PVC jacket, 6FT
Support Win XP/9X, Win 7, Linux, CE, Android





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About PL2303GT
PL2303GT USB to RS232 Serial Bridge Controller With Built-in RS232 Transceiver
USB Interface
Single-chip USB to RS232 asynchronous
serial data transfer interface.
Fully Compliant with USB 2.0 specification
(Full-Speed Mode).
UHCI/OHCI (USB 1.1), EHCI (USB 2.0), xHCI
(USB 3.1) Host Controller Compatible.
Royalty-free USB to Virtual Com Port (VCP)
drivers for Windows, Mac, Linux, and Android.
Highly integrated USB 1.1 FS Transceiver.
Integrated termination resistors and pull-up
resistor to reduce PCB external components.
Supports OTPROM (One-Time Programmable
ROM) for USB device descriptors
configuration. OTPROM can be programmed
directly through USB port.
Each IC has unique ID (for Serial Number).
Supports bus-power, self-power and
high-power USB device configuration.
Supports Windows USB Selective Suspend
(Remote Wakeup enabled).
Supports 3.3V VBUS voltage operation
UART Interface (RS232)
Built-in RS232 Transceiver:
o Meets EIA/TIA-232F standards with 5.0V
power supply
o Guaranteed 1000kbps transmission rate
under loading
o Three RS232 Drivers design
o Five RS232 Receivers (always active)
o Latch-up free
RS232 Serial Port Output Interface:
o Full UART RS232 interface pins (TXD, RXD,
RTS, CTS, DTR, DSR, DCD, and RI)
o Flexible baud rate support up to 1Mbps
o 5, 6, 7 or 8 data bits
o Odd, Even, Mark, Space, None parity mode
o One, one and a half, or two stop bits
o Hardware and Software Flow Control
o Provides RS232 shutdown indicator pin
1024-byte bi-directional data FIFO buffers
(768-byte receive/256-byte transmit) for
faster data throughput.
Configurable Transmit (TX) and Receive
(RX) LED pins using configurable GPIO pins.



Installing the Plugable USB to RS-232 DB9 Serial Adapter on Windows 7
Windows 7 will detect and pop up a wizard to install drivers when the usb serial cable is plugged in, but it’s also easy (as essential on other operating systems) to install the driver software first.
You’ll want to download the driver and unzip it anywhere on your desktop. Once you have, double click on it to start the installation.
The installation is relatively simple and no questions are asked. When it’s done you should see something like this:
Now go ahead and connect the adapter. You should get a pop-up looking like this:
Finally Windows should report that the device has been installed:
On Device Manager you should be looking at something like this:

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