On Feb 4, 2009, at 7:35 AM, Al Poulin wrote:
> > > On Feb 4, 2009, at 4:10 AM, imaclist group wrote: > >> == 1 of 1 == >> Date: Tues, Feb 3 2009 8:20 am >> From: Bruce Johnson >> >> Devices may be daisy-chained up to 63 devices. There's a 4.5 meter >> total cable length limit, and standard 6-pin FW supplies 45 watts of >> power. This per the standard, via Wikipedia. > > Interesting, so, per the standard, the average length of the > connecting cables cannot exceed 71mm (about 2 3/4 inches). Yeah, if you're connecting the MOFR (Mother of All Firewire Raids) :-) If you put powered repeaters in the length can be larger. Also, note that this length limitation applies to a single run, and you can connect a firewire chain in tree mode, so you can connect multiple 4.5 meter runs. in real life, I don't know what the largest FW chain actually ever used is...I do know that it's sad, but FW never reached it's full potential, because ALL fw devices can talk to each other, in theory, you could have a scanner stuffing scans onto a drive without any intervention from the computer. -- Bruce Johnson University of Arizona College of Pharmacy Information Technology Group Institutions do not have opinions, merely customs --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to Low End Mac's iMac List, a group for those using G3, G4, G5, and Intel Core iMacs as well as Apple eMacs. The list FAQ is at http://lowendmac.com/imac/list.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to imaclist@googlegroups.com To unsubscribe from this group, send email to imaclist-unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/imaclist?hl=en Low End Mac RSS feed at feed://lowendmac.com/feed.xml -~----------~----~----~----~------~----~------~--~---
