[tracker2] Can't connect to T2-301 using OTWINCFG

[ozzienic]

Hi all,
I recently purchased a T2-301 and it arrived this week. I made a cable that 
supplies DC to the device negative on pin 4 and positive on pin 5 and connects 
pin 4 to my USB to serial converter pin 5, pin 2 to my USB to serial converter 
pin 3 and pin 8 to my USB to serial converter pin 2. Is this correct?
I have loaded OTWINCFG onto my laptop and when I run it it doesn't progress 
past the connect to tracker screen. It doesn't matter if I check the Disable 
Turbo box or not.
Can anybody on the list suggest what I might be doing wrong?
Best 73's
Nic
VK2KXN / VK5ZAT