That is why channel to channel adapters take 4 sets of
hoses to do a
connection
between two mainframe, for example. Two (Bus/Tag) each way.
I suppose it is a good time for me to beg for Bus and Tag cables, if
anyone has any extras. Sometimes they can be found buried in computer
room raised floors, because nobody wanted to fish them out.
William Donzelli
aw288 at
osfn.org