ETSI ONT safety guidelines 7368 ISAM ONT G-240W-J Product Guide
30 3FE-48009-AAAA-TCZZA Issue: 01
3.5.3 Transmit optical output
The maximum transmit optical output of an ONT is +5 dBm.
3.5.4 Normal laser operation
In normal operation, fiber cable laser radiation is always off until it receives signal
from the line terminal card.
Eyes can be damaged when they exposed to a laser beam. Operating personnel
must observe the instructions on the laser explanatory label before plugging in the
optical module.
Danger — Risk of eye damage by laser radiation.
3.5.5 Location class
Use cable supports and guides to protect the receptacles from strain.
3.6 Environmental requirements
See the ONT technical specification documentation for more information about
temperature ranges.
During operation in the supported temperature range, condensation inside the ONT
caused by humidity is not an issue. To avoid condensation caused by rapid changes
in temperature and humidity, Nokia recommends:
• The door of the ONT not be opened until temperature inside and outside the
enclosure has stabilized.
• If the door of the ONT must be opened after a rapid change in temperature or
humidity, use a dry cloth to wipe down the metal interior to prevent the risk of
condensation.
• When high humidity is present, installation of a cover or tent over the ONT helps
prevent condensation when the door is opened.
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