Maximum FireWire Cable Length
One of the most commonly posed hardware related questions in our support department is:
What is the maximum length of FireWire cable that I can use with your astronomy cameras?
The official answer is:
4.5 meters
For example, the cable CA-1394-66/4.5.
We have heard reports from customers that they have got our cameras working with cables of up to 10 meters. These cables, however, are not officially supported and thus your mileage may vary.
We do, however, offer an officially supported solution, if you have a really long distance between camera and host PC. Typically, this solution is of interest to customers with their telescope and camera in the garden and PC in a warm home office.
Using the Optical FireWire Repeater (OL/1394sc2-1), distances of between 10 meters and 1 kilometer can be bridged. Although, the Optical FireWire Repeater is certainly not a low cost solution, it does allow extremely long cables to be used and can save the day in some extreme situations.
Benjamin Verdessi said,
September 30, 2007 @ 12:04
Hello,
I can not understand why to use an unsuitable interfase. What is the reason for to use a short-distance capable interfase, like USB or Firewire?
Why not to use a cheap 100 Mb/s ethernet instead ? It is easy to use, very cheap, all the world knows it and all the PC have one o more ethernet interface. And without mention the WiFi….
I will be very thankful with your answer!
profjohn said,
October 1, 2007 @ 15:57
Benjamin,
Until recently there was not a reason for The Imaging Source to manufacture such cameras as it is primarily a machine vision company where FireWire is the leading architecture. Since we have stepped out into various additional markets including astronomy and surveillance, we have been seriously considering ethernet, or GigE, camera development as a future endeavor.
Thanks for your interest,
profjohn