Group,
Has anyone had any experience of problems with energy hazards on modular
products and may be able to give some advice. The problem is that some of our
equipment uses the compact PCI standard for interconnection. One of the main
problems with the compact PCI standard is that it uses male connectors on the
backplane card. This becomes a big problem when there is a bank of redundant
power supplies capable of supplying over 240VA
The product is modular and therefore a customer can hot-plug cards. When all
cards are in place they have current limiting on board and there is no access to
the backplane therefore there is no problem, however they are removable without
a tool and because the system is modular you never know how many slots will be
used.
EN60950 clearly states that 'there shall be no energy hazards in the user
accessable areas' and this is quite clearly the case so how do other
manufacturers of IT equipment with compact PCI busses and large power supplies
get over this problem? Do other people screw their boxes shut, screw their cards
in, designate the equipment for use only in a restricted access area, or use
another method of protection from the hazard. I know the possible solutions but
I am looking for feedback as to how some other people have overcome this and
what method they have used.
Any information anyone can give me would be greatly appreciated.
Regards,
Duncan.
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