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Overheating
CAUTION
Risk of fire due to overheating.
Inadequate heat dissipation can cause heat accumulation or even a fire in the network
element.
You must therefore ensure that
•
the fan unit is installed,
•
the individual fans are not obstructed,
•
the minimum separation is maintained between two shelves in a rack (follow the
installation instructions given in this guide).
Detector diodes
CAUTION
Destruction of the detector diodes caused by too high an input power.
Connecting the output and input of optical circuit packs with a transmit power in
excess of -3 dBm over short distances will cause the destruction of the detector diodes,
as the input power is then too high.
Use an optical attenuator pad of approx. 10 to 20 dB when establishing connections
over short distances for test purposes.
The following label is affixed on the
LambdaUnite
®
MSS subrack:
Receiver sensitivities
You can find the receiver sensitivities in the LambdaUnite
®
MSS Applications and
Planning Guide
(Technical specifications).
Safety
Installation
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1-28
Lucent Technologies - Proprietary
See notice on first page
365-374-187
Issue 1, December 2005