Cisco ONS 15454, Руководство по установке оборудования

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Fiber Management Using the Y-Cable Module Tray
The optional Y-cable module tray manages the connections between TXP cards by splitting patchcords into
single connections. The patch-panel tray consists of a metal shelf, a pull-out drawer, and up to eight Y-cable
modules.
The following figure shows a fibered Y-cable module tray.
Figure 96: Y-Cable Module Tray
To ensure diversity of the fiber coming from different cards in the Y-cable scheme, one pair of fibers (e.g.
from the active transponder) should come out on the opposite side from the second pair of fibers (e.g. standby
transponder), according to local site practice.
Fiber Management Using the Fiber-Storage Tray
Cisco recommends installing at least one fiber-storage tray in multinode racks to facilitate fiber-optic cable
management for DWDM applications. This tray is usually used to store slack cable from cables installed
between cards within a single node. Refer to
Figure 62: Typical DWDM Equipment Layout in an ONS 15454
ANSI Rack, on page 122 for typical mounting locations.
Optical fibers without exposed metallic ferrule must be used with all the products and platforms covered by
this document (see the following figures). Electrostatic discharge is more easily coupled into the equipment
through exposed metallic ferrules near the fiber connectors.
Cisco ONS 15454 Hardware Installation Guide
173
Installing the ONS 15454 M12 (ANSI and ETSI) Shelf
Fiber Management Using the Y-Cable Module Tray