1-53
Cisco ONS 15454 Installation and Operations Guide
November 2001
Chapter1 Hardware Installation
Fiber-Optic Cable Installation
Caution Do not user fiber loopbacks with the OC192 LR 1550 card unless you are using a 20 dB att e ntuator.
Never connect a direct fiber loopback. Using fiber loo pba cks c ause s irr e para ble da mage to t he
OC-192 card.
Procedure: Install Fiber-Optic Cables on OC-N Cards
Note Clean all fiber connectors thoroughly. Dust particles can degrade performance. Put caps on
any fiber connectors that are not used.
Step 1 Place the SC connector in front of the connection point on the card fac eplat e. Ea ch c ard supp orts at least
one transmit and one receive connector to create an optical carrier port. Figure1-31 shows the cable
location.
Figure1-31 Installing fiber-optic cables
Step 2 Align the keyed ridge of the cable connector with th e rece ivi ng slot on th e fa cep lat e c onn ec tion poi nt.
Step 3 Gently push the cable connector into the faceplate connection point until the connector snaps into place.
Procedure: Install the Fiber Boot
Cisco provides clear plastic fiber boots for the OC-3, OC-12, and OC-48 (except OC48 AS) cards. The
boots prevent hanging fibers from bending too sharply, which may degrade pe rformance. The boots also
prevent the front door from interfering with hanging fibers. The fiber boots are not necessary for t he
OC-192 and the OC-48 AS cards because of the angled SC connector. Figure1-32 shows the fiber b oot
attachment.
You can install the fiber boots on the fiber-opt ic cab les befor e or af ter t he fibers are a ttache d to the optic
card.
Tx
Rx
FAIL
ACT
SF
32082
Front edge of card
SC cable connector
SC faceplate connector