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Supply voltage
NOTICE
Destruction of components due to a supply voltage of incorrect polarity or
too high
1675 LambdaUnite MSS equipment operates at a nominal voltage of -48 V DC or
-60 V DC. The permissible tolerance range is -40.5 V DC to -72 V DC.
Ensure that the supply voltage has the correct range and polarity before connecting the
voltage.
Fusing
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 1675 LambdaUnite MSS Installation and
System Turn-up Guide.
Condensation
NOTICE
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.
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1675 LU MSS
365-374-159R11.01.28 Release 11.01.28
Issue 1 November 2012
NOTICE
Fire hazard
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