3Com U.S. Robotics 56K Voice, Руководство пользователя

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If the unit shows signs of a distinct change in performance.
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Never install telephone wires during a lightning storm, or install telephone connection
sockets in wet locations, unless the socket is specifically designed for wet locations.
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Do not touch uninstalled telephone wires or terminals unless the telephone line has been
disconnected at the network interface. Always exercise caution when installing or modifying
telephone lines.
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Do not use a telephone, which is connected to the unit, to report a gas leak in the vicinity of
the leak.
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Do not spill food or liquids on the unit. If the unit gets wet, isolate the electrical supply and
contact your 3Com reseller.
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Do not push any objects into the openings of the unit. Doing so can cause fire or electric
shock by shorting out internal components.
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Only equipment approved for use by your telecom company can be connected to the
telephone port.
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Avoid using a telephone, which is connected to the unit (other than a cordless type), during
an electrical storm.
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Equipment connected to the telephone port must be located in the same building as the
unit.
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Be sure nothing rests on the units system cables and that the cables are not located where
they can be stepped on and cause damage to the unit.
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Keep the unit away from radiators and heat sources. Allow 25mm (1inch) around the unit to
provide adequate air circulation.
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Install the unit in a clean area that is free from dust or extreme temperatures.
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Allow a clearance gap of at least a 150 mm (6 inches) from the rear panel of the unit, to
allow for cable access.
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Interconnecting directly, or by way of other apparatus, to ports complying with SELV
requirements may produce hazardous conditions on the network. Advice should be sought
from a competent engineer before such a connection is made.