31 Oct
2008
31 Oct
'08
10:20 a.m.
On 31 Oct 2008 at 10:43, Dave McGuire wrote:
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?
Differential, but digital on the data connector. 26LS31 drivers,
26LS32 receivers across 100 ohm termination (one section of four is
used in early drives). All the control signals are the usual 74LS38
open collector types. For the data line driver/receiver, probably
most RS-422-capable devices would work.
Cheers,
Chuck