14 Apr
1999
14 Apr
'99
6:37 p.m.
Lawrence LeMay <lemay(a)cs.umn.edu> wrote:
The explanation is that some signals are open
collector driven, and thus you need 2200 Ohm pull up resistors.
Does anyone know what the deal is, and is this really necessary, or
just a nice idea that you can usually ignore...
Hi Lawrence
First the bad news: Yes you must have pull-up resistors.
Next the good news: Most drives have a socket that will
either take a resistor network or jumpers to resistors.
The idea here is the device at the end of the daisy chain
would be the only one with the pull-up resistors. This doesn't
effect the cables, only how you set up the optional parts
of the drives.
Dwight