Cisco Cisco ONS 15454 SONET Multiservice Provisioning Platform (MSPP) Guía De Instalación
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Installing the Cisco ONS 15454 Four-Shelf and Zero-Shelf Bay Assembly
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Ground and Power
Warning
This equipment is intended to be grounded. Ensure that the rack is connected to common office earth
ground during normal use.
ground during normal use.
Warning
Do not mix conductors of dissimilar metals in a terminal or splicing connector where physical contact
occurs (such as copper and aluminum, or copper and copper-clad aluminum), unless the device is
suited for the purpose and conditions of use.
occurs (such as copper and aluminum, or copper and copper-clad aluminum), unless the device is
suited for the purpose and conditions of use.
Warning
Connect the ONS 15454 only to a DC power source that complies with the safety extra-low voltage
(SELV) requirements in IEC 60950-based safety standards.
(SELV) requirements in IEC 60950-based safety standards.
Warning
The ONS 15454 relies on the protective devices in the building installation to protect against short
circuit, overcurrent, and grounding faults. Ensure that the protective devices are properly rated to
protect the system, and that they comply with national and local codes.
circuit, overcurrent, and grounding faults. Ensure that the protective devices are properly rated to
protect the system, and that they comply with national and local codes.
Warning
A readily accessible fuse must be incorporated in the fixed wiring.
Warning
If you use redundant power leads to power the ONS 15454, disconnecting one lead will not remove
power from the node.
power from the node.
Caution
Always use the supplied ESD wristband when working with a powered ONS 15454. Plug the wristband
cable into the ESD jack located on the lower-right outside edge of the shelf assembly.
cable into the ESD jack located on the lower-right outside edge of the shelf assembly.
Central Office Ground to Bay Wire Ground
Connect the common central office (CO) ground to the bay wire ground according to local site practice.
Note
The bay assembly ground must be attached to the common CO ground via an H TAP compression
connector.
connector.
Central Office Power to FAP
Connect the CO power to the FAP according to local site practice.
Note
CO power from the battery distribution feeder bay (BDFB) to the bay assembly must be a direct feed from
a single breaker (one breaker for return, and one breaker for –48 VDC) at the BDFB to the input
connection of the bay assembly. The size or gauge of the power wire feed must be calculated by the
distance from the BDFB to the FAP.
a single breaker (one breaker for return, and one breaker for –48 VDC) at the BDFB to the input
connection of the bay assembly. The size or gauge of the power wire feed must be calculated by the
distance from the BDFB to the FAP.