Adva 3000R7 - Operational Risks

Operational Risks
Operational Risks
Risk Details
Equipment Handling
l The weight of a fully equipped HD shelf varies from
moderate to heavy. When improperly handled, it can fall
and cause personal injury or equipment damage.
Elevated Voltages
l The electrical equipment has particular points, such as
power supply, power connectors, and backplane, where
elevated voltages are inevitably present. Under normal
circumstances, accidental contact with exposed live parts
is not possible. Consequently, imminent danger to you
should not exist.
Elevated Operating
Temperatures
l Elevated operating temperatures can occur for some of
the circuit parts. Because such components are located
only inside the equipment, they are not an imminent
danger to you or any other personnel. The fan tray
modules (FTMs) are present to cool the HD shelf and its
components.
Rotating Fan Blades
l Shelves with forced-air cooling have rotating fans on the
FTMs. During normal operation, you are unable to access
these fans, and therefore the rotating fan blades are not
dangerous to service personnel.
l If someone opens the shelf for the purpose of
maintenance or service, rotating fan blades can become
dangerous. In this case, contact with rotating fan blades
can harm your fingers. Always avoid touching rotating fan
blades.
l To minimize the risk of injury, the FTMs come with a
safety interlock that stops the rotating fan blades when
someone pulls the unit from the shelf.
Laser Radiation
l During normal operating conditions, human access to
hazardous laser radiation is not possible (closed OFCS).
However, when an optical fiber cable breaks, or if
someone disconnects or opens an optical fiber connector,
exposure to a level of optical radiation that is above
Hazard level 1M is possible. For laser safety
requirements, APR/APSD procedures rapidly reduce the
output power on the main optical signal sources. The
power on all pump-lasers operate at a level below the
Hazard Level 1M, or else the power shuts down these
laser sources, if necessary.
FSP 3000R7 High-Density Subshelf Guide - R17.2 - Issue:B 460