<I don't really see how the fanout units on offer (or my unsuccessful <back-to-back device) could do that -- the termination isn't in the <transceiver or fanout unit, it's a resistor on the end of the cable. < Anyway, it would still only be one termination domain. Or maybe I've <misunderstood what you mean? If you mean my back-to-back transceiver idea <yes, if it had worked, you could use it to split a termination domain into <two, just like a two-port repeater, or a very simple bridge (except a <bridge usually separates collision domains too). Anyone ever heard of a DELNI? Ok, it was an 8 port AUI to AUI with a 9th for AUI to h4000 fat eithernet cable. Popular use was for cobbing 4-7 system together locally if you didn't have the BIG backbone. Logial equivilent of a 8 port hub used for 10bt. Allison