Re: Firewall ports?
Thanks for straightening me out on the maximum number of devices on a single fire wire port. I knew it was more than what you could do with USB, but couldn't remember the exact number. Fire wire actually has intelligence built in to it, at least I think so, especially if it's able to communicate to other devices without the use of a computer. It is also more efficient than USB as well when it comes to the actual transfer speeds. And with Fire wire 800, it's even faster than USB 2.0. In a message dated 2/3/2009 11:20:56 A.M. Eastern Standard Time, john...@pharmacy.arizona.edu writes: On Feb 2, 2009, at 5:54 PM, bhealthyag...@aol.com wrote: I believe you are allowed to daisy chain up to 7 before you are required to have a hub, but not sure about that part. 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. -- Bruce Johnson University of Arizona College of Pharmacy Information Technology Group Institutions do not have opinions, merely customs **Great Deals on Dell Laptops. Starting at $499. (http://pr.atwola.com/promoclk/10075x1217883258x1201191827/aol?redir=http://ad.doubleclick. net/clk;211531132;33070124;e) --~--~-~--~~~---~--~~ 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 -~--~~~~--~~--~--~---
Re: Firewall ports?
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). Al Poulin --~--~-~--~~~---~--~~ 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 -~--~~~~--~~--~--~---
Re: Firewall ports?
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 -~--~~~~--~~--~--~---
Re: Firewall ports?
On Feb 2, 2009, at 5:54 PM, bhealthyag...@aol.com wrote: I believe you are allowed to daisy chain up to 7 before you are required to have a hub, but not sure about that part. 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. -- 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 -~--~~~~--~~--~--~---
Re: Firewall ports?
Firewire, or IEEE 1394, ports allow for daisy chaining, so as long as you have another Firewire ports on either of the external back up drives, all you have to do is plug it into one of them. I too have a 1.42 Ghz eMac and that is what I do. All it takes is a standard Firewire cable to connect one to another. I believe you are allowed to daisy chain up to 7 before you are required to have a hub, but not sure about that part. Garth In a message dated 2/1/2009 1:44:08 P.M. Eastern Standard Time, whs...@verizon.net writes: Hello, I have two firewall ports on my eMac , which I use for two external backup drives. I'd like to add a third drive. Is there any way to do this cheaply? Thanks for any help past and present. Wilton Wilton Shaw _whs...@verizon.net_ (mailto:whs...@verizon.net) **Great Deals on Dell Laptops. Starting at $499. (http://pr.atwola.com/promoclk/10075x1217883258x1201191827/aol?redir=http://ad.doubleclick. net/clk;211531132;33070124;e) --~--~-~--~~~---~--~~ 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 -~--~~~~--~~--~--~---
Re: Firewall ports?
On Feb 1, 2009, at 1:43 PM, Wilton Shaw wrote: Hello, I have two firewall ports on my eMac , which I use for two external backup drives. I'd like to add a third drive. Is there any way to do this cheaply? Thanks for any help past and present. Wilton Wilton Shaw whs...@verizon.net I think!!! you mean 'Firewire' All of my external drives have extra Firewire ports on them where additional firewire 'things' can be added to the chain. To check this out, Unplug from the computer ONE of the firewire cables, and plug it into the other external drive, and see if it gets mounted. HTH Chuck D. --~--~-~--~~~---~--~~ 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 -~--~~~~--~~--~--~---
Re: Firewall ports?
Wilton Shaw wrote: Hello, I have two firewall ports on my eMac , which I use for two external backup drives. I'd like to add a third drive. Is there any way to do this cheaply? Thanks for any help past and present. That would be FireWIRE. A firewall is there but it is something else. Check your external drives, most fullsize (not laptop) drives have two Firewire ports on them. You just connect another drive to the second port. Barring that you would need a FireWire hub. They are around but not nearly as common as USB hubs. A Froogle search should yield one. -- Clark Martin Redwood City, CA, USA Macintosh / Internet Consulting I'm a designated driver on the Information Super Highway --~--~-~--~~~---~--~~ 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 -~--~~~~--~~--~--~---
Re: Firewall ports?
Hi Wilton. I suspect you mean firewire ports. I have used a firewire hub but was not that happy with it. It seemed to cause some confusion on the firewire bus. Mine was inexpensive. Your mileage may vary with other hubs. An easier solution might be to daisy chain the drives. If your drive enclosures have more than one firewire port, try plugging one drive into the back of the other. This should free up one of the firewire ports on your eMac. Jim On Feb 1, 2009, at 10:43 AM, Wilton Shaw wrote: Hello, I have two firewall ports on my eMac , which I use for two external backup drives. I'd like to add a third drive. Is there any way to do this cheaply? Thanks for any help past and present. Wilton Wilton Shaw whs...@verizon.net --~--~-~--~~~---~--~~ 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 -~--~~~~--~~--~--~---
