Cisco ONS 15454 Series Procedure Manual page 97

Chapter 1 Install the Cisco ONS 15454 Shelf Assembly
Required/As Needed
Onsite/Remote
Security Level
Stability hazard. The rack stabilizing mechanism must be in place, or the rack must be bolted to the
Warning
floor before you slide the unit out for servicing. Failure to stabilize the rack can cause the rack to tip
over. Statement 1048
Warning This product requires short-circuit (overcurrent) protection, to be provided as part of the building
installation. Install only in accordance with national and local wiring regulations. The short-circuit
(overcurrent) protection rating must not exceed 40A. Statement 1045
To prevent the system from overheating, do not operate it in an area that exceeds the maximum
Warning
recommended ambient temperature of: 45 degrees C (113 degrees F). Statement 1047
Warning Take care when connecting units to the supply circuit so that wiring is not overloaded. Statement 1018
To prevent bodily injury when mounting or servicing this unit in a rack, you must take special
Warning
precautions to ensure that the system remains stable. The following guidelines are provided to
ensure your safety:
• This unit should be mounted at the bottom of the rack if it is the only unit in the rack.
• When mounting this unit in a partially filled rack, load the rack from the bottom to the top with the heaviest
component at the bottom of the rack.
• If the rack is provided with stabilizing devices, install the stabilizers before mounting or servicing the unit in
the rack.
Warning To prevent airflow restriction, allow at least 1 inch (25.4 mm) of clearance around the ventilation
openings.
The ONS 15454 must have 1 inch (25.4 mm) of airspace below the installed shelf assembly to allow air
Warning
flow to the fan intake. The air ramp (the angled piece of sheet metal on top of the shelf assembly)
provides this spacing and should not be modified in any way. Statement 385
78-19286-01
Required
Onsite
None
Statement 1006
Required Tools and Equipment (ETSI)
Cisco ONS 15454 DWDM Procedure Guide, Release 9.2
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