Possibly a question for the wrong group, can I use serial on a multidrop RS485 network? I know I'll obviously need a physical adapter for it, but can serial be used or is it only point to point? The application is sync serial (SDLC-based), not async, and I want to achieve three things: 1. Link "tap" for logging all traffic, regardless of destination, on a short-distance 300-500kbit/s RS485 multidrop 2. Source / destination node for traffic, with address set by software 3. Interface to Ethernet/IP, but ser2net or similar could be used for that All pointers very gratefully received!!! Andy -- To unsubscribe from this list: send the line "unsubscribe linux-serial" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html