Can't Connect my Serial Device Through USB to Serial Adapter on Mac OSX 10.6.8!

1

I have just received and followed the installation instruction for USB Serial Adapter (1.5.0v) but I can’t connect to my serial device on my mac os x 10.6.8. Although I can when running a vm of windows 7 and everything works great. However the main software that I need to run is mac only.

System Profiler

USB-Serial Controller D:

Product ID: 0x2303
Vendor ID: 0x067b (Prolific Technology, Inc.)
Version: 4.00
Speed: Up to 12 Mb/sec
Manufacturer: Prolific Technology Inc.
Location ID: 0x1d100000 / 2
Current Available (mA): 500
Current Required (mA): 100

running

kextstat | grep prolific
0 0x841a7000 0x7000 0x6000 com.prolific.driver.PL2303 (1.5.0)

and

ioreg -c IOSerialBSDClient | grep usb
| | | “IOTTYBaseName” = “usbserial”
| | | “IOCalloutDevice” = “/dev/cu.usbserial”
| | | “IODialinDevice” = “/dev/tty.usbserial”
| | | “IOTTYDevice” = “usbserial”

and

ls /dev/*usbserial*
/dev/cu.usbserial /dev/tty.usbserial

I have also setup the network configuration for USB-Serial Controller D:
Vendor: Null Modem
Model: 9600 bps (This matches my device)
Error correction: Uncheck
Manual Dial
Tone
Sound: Off

Everything appears to be correct, just no luck.

Any help would be appreciated.

2

Hello,

Thank you for posting your question about the USB to Serial adapter.

I agree, everything looks good, and the fact you can connect with a Windows in a VM tends to indicate things are running well at a hardware level.

What software are you using to connect to the device? Would it be possible to tell me what the serial device you are connecting to is?

Thanks,
David
Plugable Support