Cisco ONS 15454, Hardware Installation Manual

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Determine your fiber size according to the number of cards/ports installed in each side of the shelf. For
example, if your port combination requires 36 fibers, 3-mm (0.11-inch) fiber is adequate. If your port
combination requires 68 fibers, you must use 2-mm (0.7-inch) or smaller fibers.
Fiber Management Using the Patch-Panel Trays
The optional patch-panel trays manage the connections between multiplexer/demultiplexer and TXP cards
by splitting multiple fiber push-on (MPO) cables into single fiber connections (LC cables). The patch-panel
tray consists of a metal shelf, a pull-out drawer, a drop-in patch-panel module, and various cable routing
mechanisms.
Standard and Deep Patch-Panel Trays (32-Channel)
There are two patch-panel trays intended for use with 32-channel cards, the standard tray (1 RU deep) and
the deep tray (2 RUs deep). Both the standard patch-panel tray can host up to eight ribbon cables (with eight
fibers each) entering the drawer, or 64 cables (with a maximum outer diameter of 2 mm [0.079 in.]). The deep
patch-panel has the bulkheads organized in 8 packs, each housing 8 LC adapters, which allows for more room
for internal fiber routing as well as more clearance for ingress and egress of the cables. The deep patch-panel
comes with the MPO-LC cables preinstalled.
Because the standard and deep patch-panel tray can each host 64 connections, hub and ROADM nodes will
typically require two standard patch-panel modules each, and other DWDM nodes might require one. (Only
one standard or deep patch-panel tray is necessary for terminal nodes.) The module fits 19- and 23-inch
(482.6-mm and 584.2-mm) ANSI racks and 600 mm (23.6 inch) x 300 mm (11.8 inch) ETSI racks, using
reversible brackets.
The following figure shows a partially fibered standard patch-panel tray.
Figure 73: Standard Patch-Panel Tray
The following figure shows a partially fibered deep patch-panel tray.
Cisco ONS 15454 Hardware Installation Guide
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Installing the ONS 15454 M12 (ANSI and ETSI) Shelf
Fiber Management Using the Patch-Panel Trays