Cisco ONS 15454 Hardware Installation Manual page 225

Installing the ONS 15454 M2 Shelf
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. Statement 1045
Warning
Voltages that present a shock hazard may exist on Power over Ethernet (PoE) circuits if interconnections
are made using uninsulated exposed metal contacts, conductors, or terminals. Avoid using such
interconnection methods, unless the exposed metal parts are located within a restricted access location
and users and service people who are authorized within the restricted access location are made aware
of the hazard. A restricted access area can be accessed only through the use of a special tool, lock and
key or other means of security. Statement 1072
Warning
This product relies on the building's installation for short-circuit (overcurrent) protection. Ensure that
the protective device is rated not greater than: 10A-20A, 100-240 VAC~. Statement 1005
Warning To prevent the system from overheating, do not operate it in an area that exceeds the maximum
recommended ambient temperature of: 131°F (55°C). Statement 1047
Warning Take care when connecting units to the supply circuit so that wiring is not overloaded. Statement 1018
Warning To prevent bodily injury when mounting or servicing this unit in a rack, you must take special 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. Statement 1006
Warning To prevent airflow restriction, allow clearance around the ventilation openings to be at least:1 inch
(25.4 mm) Statement 1076
Note Make sure that the correct type of 19-inch ANSI rack is used for mounting the ONS 15454 M2 shelf as shown
in Figure 1: 19-inch ANSI Rack Post Recommended for Cisco ONS 15454 M6 and M2 Shelves, on page
NTP-G266 Install the ONS 15454 M2 Shelf
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