4-2
Observing safety guidelines
Video Codec Enclosure (VCE) 323-3221-291 Rel 1.0 Standard
Handling units
The following precautions must be taken when handling DV-45 units:
•
Wear a skin-contact antistatic bracelet when handling all units that are
sensitive to static electricity. This bracelet consists of an expandable wrist
strap and grounding cord; its function is to dissipate charges to ground.
•
At all times, handle the units by the faceplate or stiffener.
•
Do not touch the solder side, pin connector, or components.
•
Do not stack units on top of, or against each other.
•
Do not force units into the packaging material.
•
Ensure that the transmit and receive optical connectors of optical units are
protected by dust caps at all times.
Note:
Alternative personnel grounding methods can be used; for example,
conductive carpet, conductive shoes, or heel grounding assemblies.
Storing units
Spare units must be left in the original shipping container until required.
To prevent damage to DV-45 units while they are in storage, necessary
precautions must be observed, to avoid:
•
accumulation of dirt or dust on the gold-plated contact
•
defacing of printed wiring areas
•
board warpage if stored in an area of high humidity and temperature.
Installing or replacing units
To prevent electrostatic damage, the following conditions apply during the
installation or replacement of DV-45 units that are sensitive to static
electricity:
•
all units must be enclosed in static shielding bags for transportation
•
upon reaching the trouble location, maintenance personnel must attach a
antistatic bracelet before removing shelf covers
•
suspect units must be removed and immediately placed in a static shielding
bag
•
all safety precautions listed under “Handling units” should be followed
during installation and replacement of units.
Whenever possible use the original static shielding bag, padding, and box in
which the DV-45 unit was received. If the original material is lost, use other
suitable packing.