On Wed, 2009-08-19 at 12:36 +0100, Jonathan Cameron wrote:
> Hi all,
> Sorry for spamming you all like this, but I couldn't think
> of a better place to ask.
> We have been having a lot of trouble with quality of firewire
> cables from the likes of AVT, Lindy and Farnell.
> Our application involves cameras being regularly plugged in and
> out on and some of them are on pan tilt heads so the cable is
> getting a lot of flexing. Currently the only way we can get a
> reliable connection is to use fibre, not a cheap option to say
> the least! (not to mention, you only tend to get one such connector
> on a card which is a pain in small systems where multiple ohci
> controller cards are definitely helpful).
> The avt ones have heavy ferrite blocks on them which
> lead to connection problems (basically the wires tend to to fail
> after while and will only work if additional supports are used to
> prevent them kinking). Otherwise these cables seem pretty well built
> and are probably fine in more controlled circumstances.
> The Lindy ones seem slightly better but still have occasional issues
> with being flexed as do the cheap and cheerful Farnell options.
> So who makes the most reliable cables people have come across?
> All comments on this issue very much appreciated!
- some 1394 sockets have a higher quality then standard ones, e.g. the
ones found on Hamamatsu cameras (then again, these cameras cost over
- 1394B sockets with screws are usually good (PGR cameras, etc...)
For cables, Newnex has an extended range of cables and are reliable. The
whole freak-show: http://newnex.com/products/1394/index.php
If you want nice cables you can also check PGR's FirePRO range.
I have a 1394B high-flex cable and it's very nice.
A bit thick (8mm diam) but it flexes down to a 3cm bend radius and is
supposed to go through 3e6 flexing cycles. AFAIK it's the highest
quality cable around.
Damien 高原 Douxchamps http://damien.douxchamps.net/