Installation guide
5
Digital Video I/O Card
How to Install Your New IEEE-1394 (DV)
I/O Card Within GlobeCaster
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It is important to make a point about electrostatic discharge, or ESD. Even if you
are an experienced technician, you should be aware of the danger of ESD.
Almost everyone is aware of static electricity and its effect when you rub your feet
on the carpet and zap someone on the earlobe. But did you know how damaging
static electricity can be to computer components?
For a human being to feel a static shock, the voltage must be around 1,500 volts.
Really nasty shocks can be over 30,000 volts! Electronic components can be dam-
aged by much lower voltages, about 20-30 volts. Therefore the static electricity
your body accumulates is enough to damage circuit boards by merely touching
them.
Sometimes ESD damage is not readily apparent, and can cause a board to fail
months after it was improperly handled. To avoid this type of failure, please take
the following steps when working inside your GlobeCaster:
• Remove any articles of clothing that gather static electricity. Wool sweaters are
especially prone to this.
• Work on the GlobeCaster in a reasonably ESD-free area. Don’t work on the
unit if it’s sitting on a shag carpet.
• When working on the GlobeCaster, keep it turned off and unplugged.
• Before touching any boards inside GlobeCaster, touch the edges of the chassis
lightly to discharge any static buildup you may have.
• Handle only the boards you need to handle. Don’t go poking around in the
unit without a reason.
An ESD wrist strap costs $5 - $20 at any electronic supply house, and ensures that
your body does not have any static charge. Having an ESD wrist strap is recom-
mended, but not required. Attach the alligator clip of the wrist strap cord to the
Trinity chassis or another common ground point.