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5. INSTALLATION
WARNING
ELECTRICAL SHOCK HAZARD
Do not open the equipment
unless totally familiar with
electrical circuits and
service manual.
Only qualified personnel
should work inside the
equipment.
5.1 Mounting
5.1.1 Mounting location
The mounting location should satisfy the following requirements:
• The mounting location should be clean, moderate in temperature and humidity and well
ventilated.
• Be sure to leave sufficient space around the unit for maintenance and checking.
• A magnetic compass will be affected if placed to close to the IB-681. Observe the fol-
lowing compass safe distances to prevent deviation of a magnetic compass: Standard
compass, 1.2 m, Steering compass, 0.9 m.
• Keep the unit out of direct sunlight because of heat that can build up inside the cabinet.
5.1.2 Mounting procedure
The unit can be mounted on a tabletop. Fix the unit to the chosen location with 6x20
tapping screws (supplied). For added support, used M6 bolts (local supply) instead of the
tapping screws.
Note: Do not place the unit atop the terminal unit of the FELCOM 81.