Cisco Cisco ONS 15454 SONET Multiservice Provisioning Platform (MSPP) Guía De Diseño
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Table 7-2: ONS 15454 ANSI Shelf Specifications
Assembly Shelf Requirements Specification
Dimensions:
Height
Dimensions:
Height
18.5-inches
Width
19- or 23-inches
Depth
12-inches
Footprint
13 ft.
2
Minimum Aisle Clearance Requirement
24-inches
Environmental:
Total Weight
165 lbs.
Input Power
-48VDC
Maximum Power Consumption
1060W
Maximum Amperage
24A
Minimum Fuse Recommendation (includes safety margin)
30A
Compliance
NEBS Level 3
Shelf Installation
To prevent the equipment from overheating, do not operate it in an area that exceeds
the maximum recommended ambient temperature of 131°F (55°C) unless configured for
industrial temperature (I-temp). All I-temp rated components are –40°C to +65°C. To prevent
airflow restriction, allow at least 1 inch (25.4 mm) of clearance around the ventilation openings.
The ONS 15454 is typically mounted in a 19- or 23-inch equipment rack as shown in Figure 7-3.
The shelf assembly projects five inches (127 mm) from the front of the rack. It mounts in both
EIA-standard and Telcordia-standard racks. The shelf assembly is a total of 17 inches (431.8
mm) wide with no mounting ears attached. Ring runs are not provided by Cisco and may hinder
side-by-side installation of shelves where space is limited.
The ONS 15454 ANSI shelf measures 18.5 inches (469.9 mm) high, 19- or 23-inches (482.6 or
584.2 mm) wide (depending on which way the mounting ears are attached), and 12-inches (304.8
mm) deep. It weighs approximately 55 pounds empty. One person can install an ONS 15454
ANSI shelf in an equipment frame using the temporary set screws included. You can install up to
four ONS 15454 shelves in a seven-foot (2133.6 mm) equipment rack. The ONS 15454 must
have one inch (25.4 mm) of airspace below the installed shelf assembly to allow air flow to the fan
intake. If a second ONS 15454 is installed underneath the shelf assembly, the air ramp on top of
the lower shelf assembly provides the air spacing needed and should not be modified in any way.
industrial temperature (I-temp). All I-temp rated components are –40°C to +65°C. To prevent
airflow restriction, allow at least 1 inch (25.4 mm) of clearance around the ventilation openings.
The ONS 15454 is typically mounted in a 19- or 23-inch equipment rack as shown in Figure 7-3.
The shelf assembly projects five inches (127 mm) from the front of the rack. It mounts in both
EIA-standard and Telcordia-standard racks. The shelf assembly is a total of 17 inches (431.8
mm) wide with no mounting ears attached. Ring runs are not provided by Cisco and may hinder
side-by-side installation of shelves where space is limited.
The ONS 15454 ANSI shelf measures 18.5 inches (469.9 mm) high, 19- or 23-inches (482.6 or
584.2 mm) wide (depending on which way the mounting ears are attached), and 12-inches (304.8
mm) deep. It weighs approximately 55 pounds empty. One person can install an ONS 15454
ANSI shelf in an equipment frame using the temporary set screws included. You can install up to
four ONS 15454 shelves in a seven-foot (2133.6 mm) equipment rack. The ONS 15454 must
have one inch (25.4 mm) of airspace below the installed shelf assembly to allow air flow to the fan
intake. If a second ONS 15454 is installed underneath the shelf assembly, the air ramp on top of
the lower shelf assembly provides the air spacing needed and should not be modified in any way.