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Cisco ONS 15454 DWDM Reference Manual, R8.5
78-18343-02
Chapter 1 Shelf Assembly Hardware
1.1 Overview
Caution Unused card slots should be filled with a blank faceplate (Cisco P/N 15454-BLANK for ANSI shelves
and 15454E-BLANK for ETSI shelves). The blank faceplate ensures proper airflow when operating the
ONS 15454 without the front door attached, although Cisco recommends that the front door remain
attached.
1.1 Overview
This section provides an introduction to the Cisco ONS 15454 ANSI and the Cisco ONS 15454 ETSI.
Install the ONS 15454 in compliance with your local and national electrical codes:
• United States: National Fire Protection Association (NFPA) 70; United States National Electrical
Code.
• Canada: Canadian Electrical Code, Part I, CSA C22.1.
• Other countries: If local and national electrical codes, are not available, refer to IEC 364, Part 1
through Part 7.
1.1.1 Cisco ONS 15454 ANSI
When installed in an equipment rack, the ONS 15454 ANSI assembly is typically connected to a fuse
and alarm panel to provide centralized alarm connection points and distributed power for the
ONS 15454 ANSI. Fuse and alarm panels are third-party equipment and are not described in this
documentation. If you are unsure about the requirements or specifications for a fuse and alarm panel,
consult the user documentation for the related equipment. The front door of the ONS 15454 ANSI allows
access to the shelf assembly, fan-tray assembly, and fiber-storage area. The backplanes provide access
to alarm contacts, external interface contacts, power terminals, and BNC/SMB connectors.
You can mount the ONS 15454 ANSI in a 19- or 23-inch rack (482.6 or 584.2 mm). The shelf assembly
weighs approximately 55 pounds (24.94 kg) with no cards installed.
The ONS 15454 ETSI is powered using -48 VDC power. Negative and return power terminals are
connected via the MIC-A/P and the MIC-C/T/P FMECs. The ground terminal is connected via the 2-hole
grounding lug.
Note The ONS 15454 ANSI is designed to comply with Telcordia GR-1089-CORE Type 2 and Type 4. Install
and operate the ONS 15454 ANSI only in environments that do not expose wiring or cabling to the
outside plant. Acceptable applications include Central Office Environments (COEs), Electronic
Equipment Enclosures (EEEs), Controlled Environment Vaults (CEVs), huts, and Customer Premise
Environments (CPEs).
1.1.2 Cisco ONS 15454 ETSI
When installed in an equipment rack, the ONS 15454 ETSI assembly is typically connected to a fuse and
alarm panel to provide centralized alarm connection points and distributed power for the
ONS 15454 ETSI. Fuse and alarm panels are third-party equipment and are not described in this
documentation. If you are unsure about the requirements or specifications for a fuse and alarm panel,
consult the user documentation for the related equipment. The front door of the ONS 15454 ETSI allows
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