How to configure a Mac for a Keyspan USB-to-serial cable

1. Install the latest driver from Keyspan:
   http://www.keyspan.com/downloads/homepage_pn_usa19hs.spml

2. Open up a terminal window. Type:

   ls -lt /dev/tty* | head

   This will list your ports:

   rw--w----   1 normandeau  tty     16,   1 Feb 21 17:30 /dev/ttys001
   crw-rw-rw-  1 root        wheel    9,  12 Feb 21 17:30 /dev/tty.USA19H3d1P1.1
   crw--w----  1 normandeau  tty     16,   2 Feb 21 17:14 /dev/ttys002

   The keyspan serial port is /dev/tty.USA19H3d1P1.1

3. Use the unix "cu or minicom" command to communicate with the NetRS (like hyperterminal):

   cu -l /dev/tty.USA19H3d1P1.1 -s115200

   or
   
   minicom -s (then setup minicom to your serial port)

   If you do not have minicom you can get it here:
   http://mac.softpedia.com/progDownload/Minicom-Download-25366.html