Lucent Technologies LambdaUnite Installation Manual page 50

Safety Requirements in Specific
Deployment Phases
Taking into Operation
Condensation
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1 - 3 0
CAUTION
Destruction of components due to a supply voltage
of incorrect polarity or too high.
LambdaUnite MSS equipment operates at a nominal voltage
of -48 V or -60 V. The permissible tolerance range is
-40.5 V to -72 V.
Ensure that the supply voltage has the correct range and
polarity before connecting the voltage.
Fusing
CAUTION
Risk of fire in the event of a short-circuit.
A short-circuit can cause a fire in the network element.
Protect all supply lines with line circuit breakers
matched to the load of the shelf equipment. Note the
relevant guide values in the LambdaUnite MSS
Installation Guide.
CAUTION
Condensation causes malfunctioning
Condensation can occur in the network element during
transport, especially on moving from outside to closed
rooms; this can cause malfunctioning of the circuit packs.
Ensure that circuit packs and shelves have reached room
temperature and are dry before taking them into
operation.
Lucent Technologies
Safety
365-374-059
Issue a, January 2002