can't get PL2303 to work properly

  • Please help:

    I have a sitecom CN-104 usb to serial cable v2.

    I installed javacomm, I installed MAC OSX PL2302 driver. After this I installed the JPL2alpha5 software. when starting the software and trying to connect I get an error message saying: No serial ports where found. this may be because you do not have access permissions.

    I am running OSX 10.5.6
    My Device is named: /dev/tty.PL2303-00002FDD
    In my system monitor it is displayed as follows:
    USB-Serial Controller D:

    Productcode: 0x2068
    Fabrikantcode: 0x6189
    Versie: 3.00
    Serienummer: 00002FDD
    Snelheid: Maximaal 12 Mb/sec
    Fabrikant: Prolific Technology Inc.
    Locatiecode: 0x1d100000
    Beschikbare stroom (mA): 500
    Vereiste stroom (mA): 100

    Can anyone tell me what I am doing wrong?

    greeting André