networking via SCSI?

On Mon, Feb 4, 2013 at 2:43 PM, Ethan Dicks <ethan.dicks at gmail.com> wrote: It looks like I do have the model in the eBay listing posted earlier, the old boxy EN/SC. Internally, there's a Natl Semi DP8390DN for Ethernet, and for the media interfaces, a DP8391AN and DP8392CN. I can't find anything that resembles a microprocessor and it looks like the SCSI interface is implemented on a trio of PALs. There happen to be some counters (74LS393) between the PALs and the 27C256 EPROM, so perhaps there's just a simple state machine that pushes and pulls magically-formatted SCSI packets and all the rest of the smarts are in the driver. I'm missing the power adapters and the boxes aren't marked. Another model uses 12VAC wall warts. This PCB has a big fat 2A block rectifier, so perhaps it's the same. There's no linear regulator like a 7805 on there, but there's a Motorola MC34163P and a big, fat coil, so it appears it has its own switching regulator built into the board. I think from a quick read of the Asante docs that it will work with System 6.0.8 or newer, meaning at least 6.something. IIRC, Apple made significant changes in networking over System 7. Thanks again for the pointers. I think I have enough to put these to use on an old Mac Plus or Mac SE. -ethan