Nokia 500i, Installation Manual

Page: 19 / 80

Safety Precautions
Nokia 500i Installation Guide 19
Ventilation
Gateways can generate substantial heat during operation and therefore require
adequate ventilation. You might need to install the gateway in an air-
conditioned room to ensure that its internal cooling system can maintain
acceptable temperatures during operation.
Warning
Do not block any ventilation slots on the appliance. Internal components
might overheat and be damaged.
Humidity and Temperature
During operation, ambient relative humidity should never exceed ninety
percent and ambient air temperature must remain between 32
°
F and 113
°
F
(0
°
C and 45
°
C).
Safety Precautions
Follow these safety instructions whenever you are working with the gateway.
Caution
Read and follow all of these precautions before you work near any
power source.
! Circuit breakers must be installed in the fixed wiring on all circuits to
which the gateways are connected. Ensure that all of the circuit breakers
are easily accessible.
! For installations in North America, use a 120 VAC, 20A fuse circuit
breaker for the circuit branch.
!
For installations outside North America that use 230 VAC, use a
230 VAC, 2A fuse circuit breaker.