Wouter van Ooijen ha scritto: >> sorry :) thought I had been clear: TX <-> RX; keep primary and secondary = >> at place, and so the polarities. > = > I guess that might work, but I can imagine a manufacturer using a = > physically smaller core for the receiver transformer. I would ask the = > manufacturer before doing this in quantities. I see, yeah, makes sense indeed... I can try asking them: it is a TS6121C, though I am not sure who = actually is the manufacturer... > To save space: maybe use a jack with built-in transformers? More than that, it's a housing/casing issue: we'd need a 90=B0 or rather = 180=B0 connector, and no complete magnetics is available like that; so = we're designing the PCB with either a RJ connector or a molex strip to = move some few cm apart to a panel connector. thank you Wouter -- = Ciao, Dario -- Cyberdyne -- = http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist