On 5/30/18, Dave Horsfall <dave at horsfall.org> wrote: > > Actually, the closest I've seen DLE being used was in SLIP and PPP; I dimly recall that DLE was used by the IBM bisync half-duplex protocol used by HASP RJE stations and 2741 golfball terminals. I think it was made part of ASCII to support those sorts of protocols. -Paul W.