CHAPTER
1-1
Cisco ONS 15310-MA SDH Reference Manual, Release 9.1 and Release 9.2
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1
Cisco ONS 15310-MA SDH Shelf Assembly
Hardware
This chapter provides a description of Cisco ONS 15310-MA SDH shelf hardware. Instructions for
installing equipment are provided in the Cisco ONS 15310-MA SDH Procedure Guide.
Chapter topics include:
• 1.1 Installation Overview, page 1-1
• 1.2 Rack Installation, page 1-2
• 1.3 Electrical Interface Assemblies, page 1-5
• 1.6 Power and Ground Description, page 1-7
• 1.7 Shelf Temperature, page 1-10
• 1.8 Cable Description and Installation, page 1-10
• 1.10 Fan-Tray Assembly, page 1-23
• 1.11 Cards and Slots, page 1-26
1.1 Installation Overview
You can mount the ONS 15310-MA SDH in a 19-inch (482.6 mm) or 600x600 mm ETSI rack.
The ONS 15310-MA SDH is powered using –48 VDC power. DC power connections are accessed from
the rear of the shelf assembly. ONS 15310-MA SDH Ethernet and optical ports are accessible at the front
of the shelf assembly, and electrical connections (E1, E3/DS3) are accessible at the rear of the shelf
assembly through electrical interface assemblies (EIAs).
When installed in an equipment rack, the ONS 15310-MA SDH assembly is typically connected to a fuse
and alarm panel that provides centralized alarm connection points and distributed power for the
ONS 15310-MA SDH. 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 documentation for that product.
Note In this chapter, the terms “ONS 15310-MA SDH” and “shelf assembly” are used interchangeably. In the
installation context, these terms have the same meaning. Otherwise, shelf assembly refers to the physical
steel enclosure that holds cards and connects power, and ONS 15310-MA SDH refers to the entire
system, both hardware and software.
