Making an USB powered FireWire Cable

6 replies [Last post]
Offline
Joined: May 12 2004
Posts: 3

Hi out there,

I’m expecting the first reply to this thread to be: "you can buy that from – so and so- it’s called ---

Comment viewing options

Select your preferred way to display the comments and click "Save settings" to activate your changes.
Offline
Joined: Dec 19 2003
Posts: 566
Re: Making an USB powered FireWire Cable

marq5 wrote:
Hi out there,

I’m expecting the first reply to this thread to be: "you can buy that from – so and so- it’s called ---

Offline
Joined: May 12 2004
Posts: 3
Re:bad idea

Thanks Tom,

That's what I wanted to hear.

I won't do it.

Offline
Joined: Dec 19 2003
Posts: 566
Re:bad idea

marq5 wrote:

Thanks Tom,

That's what I wanted to hear.

I won't do it.

whats wrong with powering the drive from the comp :?

TOM

Offline
Joined: May 12 2004
Posts: 3
Hi Tom, Thanks for even wa

Hi Tom,

Thanks for even wasting your time with me. I guess I have been working too hard.

Last week I used my newly bought iBook G4 on a job, and needed to dump some data from the iBook onto my pocket drive. I guess in the hectic I did something wrong, or didn’t do something right, so that the pocket drive did not work. I assumed that the drive wasn’t getting power from the firewire bus (there must be some differences between the iBook and the Powerbook). Anyway, I’m an idiot – because after reading your post I hooked my drive to the comp. and it works fine over the FireWire 12v I mean 15v bus.

The only reason for a cable like the one I was suggesting would be for the occasional need to hook up with a PC laptop, which really doesn’t supply power over the FW bus. The FW hub and power supply I use for such occasions is as big as the pocket drive itself. It would be nice to have something more compact and it would be nice to have something for when there is no external power available.

Thanks for your interest, and help in discovering the obvious.

Cheers,

DK
Tongue

performaman's picture
Offline
Joined: Dec 20 2003
Posts: 209
I know what you mean...

My Sony laptop has FW400, but only on a 4-pin port. I wish this would work Sad

__________________

Egg freckles?

Dr. Webster's picture
Offline
Joined: Dec 19 2003
Posts: 1687
Even if USB were 12V, you wou

Even if USB were 12V, you wouldn't be able to do it, because the output current is *very* limited (in the order of only a couple hundred mA). That's why powered USB hubs are so important.

__________________

Applefritter Admin