AFAIK, it's possible. ADB has a simple enough design to allow you to do that. Both ports on an ADB keyboard (or any other ADB device with two ports) are directly cabled in parallel - ADB is just a set of four lines (ground, +5V, data and reset) all devices connect to in parallel.
You don't need to break old keyboards to make the hub. You can simply get S-Video (4-pin mini-DIN?) female connectors at your local electronic parts shop (that way you'll even save the trouble of de-soldering them!). As I said earlier, all you have to do is to cable them in parallel: you have to connect all #1 pins together, then all #2 pins, etc. Putting it in a nice box (made of metal if possible) will make it perfect, but it will work without problem even if you only wire "aereal" connectors together. Take into account that ADB software protocol is limited to 16 devices (the host plus other 15), and that the power supply for the devices is limited to a few hundred mA (500, I think). Because of that, I wouldn't make a hub with more than 5 ports (for four devices plus an "uplink" connection). Greetings, Antonio Rodr�guez (Grijan) <ftp://grijan.cjb.net:21000/> Timothy Groves ha escrito: > How difficult is it to create an ADB hub from, say, a > few dead Mac keyboards? -- Compact Macs is sponsored by <http://lowendmac.com/>. Support Low End Mac <http://lowendmac.com/lists/support.html> Compact Macs list info: <http://lowendmac.com/lists/compact.shtml> --> AOL users, remove "mailto:"; Send list messages to: <mailto:[EMAIL PROTECTED]> To unsubscribe, email: <mailto:[EMAIL PROTECTED]> For digest mode, email: <mailto:[EMAIL PROTECTED]> Subscription questions: <mailto:[EMAIL PROTECTED]> Archive:<http://www.mail-archive.com/compact.macs%40mail.maclaunch.com/> --------------------------------------------------------------- >The Think Different Store http://www.ThinkDifferentStore.com ---------------------------------------------------------------
