MAN3000 is a propriaty buffer. Therefore cannot work with TOPAZ.
You need the MAN3000 Software to initialize the buffer to send the data.
Connect the PABX direct to the PC with the serial cable.
ALSO SEE: How do I make up a cable for my Topaz Buffer
If you want a buffer, contact one of our dealers:
www.datatex.co.za -> CONTACTS -> DEALERS