Cisco ONS 15454 SDH Specifications Page 34

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1-2
Cisco ONS 15454 SDH Installation and Operations Guide, R3.3
May 2002
Chapter 1 Hardware Installation
Installation Overview
1.1 Installation Overview
ONS 15454 SDH assemblies are typically connected to a fuse and alarm panel that provides centralized
alarm connection points and distributed power for the ONS 15454 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 the related
equipment.
You can mount the ONS 15454 SDH in an ETSI rack. This ETSI rack is not supplied by Cisco. The shelf
assembly weighs approximately 23 kilograms (50,7 lbs) without cards installed. The shelf has two front
doors for added security, a fan-tray assembly module for cooling, and extensive fiber-management
space. The electrical facility connection assembly in the upper section of the shelf provides access to
user-defined (external) alarms and controls and power terminals.
The ONS 15454 SDH front door allows access to the shelf assembly, fan-tray assembly, and
cable-management area.
Caution The ONS 15454 SDH relies upon the protective devices in the building installation to protect against
short circuits, overcurrent, and grounding faults. Ensure that the protective devices have the proper
rating to protect the system, and that they comply with national and local codes.
Warning
A readily accessible two-poled disconnect device must be incorporated in the fixed wiring.
ONS 15454 SDH optical (STM-N) card faceplates have SC connectors. Fiber-optic cables are routed to
the front of destination cards. Electrical cards (such as the E1-N-14, the E3-12, and the DS3i-N-12)
require electrical facility connection assemblies (EFCAs) as cable-connection points for the shelf
assembly. The ONS 15454 SDH is powered using -48V DC power. Positive, negative, and ground-power
terminals are accessible on FMEC cards in the EFCAs. Table 1-1 lists the tasks required to install an
ONS 15454 SDH.
Table 1-1 Installation Tasks
Task Reference
Mount the ONS 15454 SDH in the
rack.
See the “Rack Installation” section on page 1-5.
Install the fan-tray assembly. See the “Fan-Tray Assembly Installation” section on page 1-18.
Ground the equipment. See the Ground and Power Installation” section on page 1-20.
Run the power cables and fuse the
power connections.
See the “Ground and Power Installation” section on page 1-20.
Install the cards. See the Card Installation” section on page 1-27.
Install the fiber cables. See the “Fiber-Optic Cable Installation” section on page 1-40.
Install the coaxial cables. See the “Cable Routing and Management” section on
page 1-42.
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