ETSI ONT safety guidelines
xvi November 2013 Alcatel-Lucent 7302 ISAM | 7330 ISAM FTTN | 7360 ISAM FX ONT R04.06.02
Edition 01 3FE 55873 AAAA TCZZA
ONT Product Information Guide
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, Alcatel-Lucent 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.