WBPEEUI250016A1
vii
Safety Summary
GENERAL
WARNINGS
Equipment Environment
All components, whether in transportation, operation or storage,
must be in a noncorrosive environment.
Electrical Shock Hazard During Maintenance
Disconnect power or take precautions to insure that contact with
energized parts is avoided when servicing.
Special Handling
This module uses electrostatic sensitive devices.
SPECIFIC
WARNINGS
Disconnect power before installing dipshunts on the module mount-
ing unit backplane. Failure to do so will result in contact with cabinet
areas that could cause severe or fatal shock. (p. 3-8, 3-13)
Wear eye protection whenever working with cleaning solvents.
When removing solvents from printed circuit boards using com-
pressed air, injury to the eyes could result from splashing solvent as
it is blown off the printed circuit board. (p. 6-1)
SPECIFIC
CAUTIONS
Always operate the NPM module with the machine fault timer circuit
enabled. Unpredictable module outputs may result if the machine
fault timer circuit is disabled. These unpredictable module outputs
may adversely affect the entire communication system. (p. 3-11)
To avoid potential module damage, evaluate your system for com-
patibility prior to module installation. This module uses connections
to the module mounting unit backplane that served other functions
in early Network 90 systems. (p. 3-12)
