vi
I-E96-221A
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 ensure that contact with
energized parts is avoided when servicing.
SPECIFIC
CAUTIONS
Early Network 90 systems applied -30 VDC to pins 3 and 4 of P1,
(top connector of the module). This voltage can cause damage to
INFI 90 modules. (p. 3-2)
It is strongly recommended that cabinet power be turned off before
doing any termination unit wiring. Failure to do so could result in
equipment damage. Do not apply power until all wire connections
are verified. Do not apply power to the termination unit when uncut
dipshunts are installed. This may result in damage to the termina-
tion unit. (p. 3-11)
