31 Oct
2008
31 Oct
'08
11:22 a.m.
On Oct 31, 2008, at 2:16 PM, Eric Smith wrote:
Well yes, you're preaching to the choir on that one. ;)
What do the
signals on the data connector look like? I seem to
recall that there
are some differential pairs on there...are they
analog or digital?
All electrical signals are analog, but I suppose we shouldn't start
that discussion again. In practical terms, the differential pairs are RS-422,
so they are
digital, but you need RS-422 drivers and receivers to talk to them
properly, and termination on the receivers. There are many
suitable quad driver and quad receiver chips, such as the
MC3486/3487 and Am26LS31/32.
Ahh, that's not so bad.
Is the whole interface spec available anywhere?
-Dave
--
Dave McGuire
Port Charlotte, FL