1 Dec
2005
1 Dec
'05
6:14 p.m.
Pertec interface is very simple. Try probing the signals--an online drive
should assert (negative logic; 0 = TRUE) IONL, which is pin 44 of P2. If
it doesn't, you may want to see if the transport address has been changed
on your drive. Most adapters assume 00 for a single-transport
address--check that with pins 46 (ITAD1) on P2 and 46 (ITAD0) on P1--both
should be at the +5 level. Finally, Pertec allows for more than one
formatter, but most adapters assume by default formatter 0. Check the
level at pin 48 of P2--it should also be high. Finally, check any
configuration jumpers inside the 9600 to make sure they agree with these
settings.
Cheers,
Chuck