Dan,
We recommend that the NI SHC68-68-EPM cable be used within the rated specification for the data acquisition product that it is connected to. For example the M-Series DAQ board is rated to operate between 0 and 55 degrees C and can be safely stored between -20 to 70 degrees C. These same specificaitons can apply to the cable. The cable can likely operate correctly at higher and lower temperatures and can be stored in higher and lower temperatures, but we have only tested within the specifications listed above and therefore cannot guarentee a greater range at this point.
In what type of environment do you plan to use the cable? What types of signals are you measuring? I ask these questions since we are continuously looking for customer feedback to make our products more useful.
Let me know if you have any further questions.
Regards,
Neil S.
Product Support Engineer
Multifunction DAQ
National Instruments