... types, like the through-connect 110-style. You can only achieve thebenefits of a Patch By Exception solution by utilisingdisconnect modules.The design of disconnection modules provides aclean ... wire-wrapcontacts in this situation.Patch By ExceptionDuring MACs the act of plugging a patch cord intothe work area modules opens the internal springcontacts, thereby disconnecting the existing circuitto ... created a newpatched configuration, by- passing the original hardwired configuration. The patch has become anexception to the original, hence the name " Patch By Exception" .To revert...