Juniper ACX1000 Hardware Manual page 134

ACX Series routers have field-replaceable unit (FRU) optical transceivers to which you can connect fiber-
optic cables.
To connect a fiber-optic cable to an optical transceiver installed in an ACX Series router:
LASER WARNING: Do not look directly into a fiber-optic transceiver or into the ends of
fiber-optic cables. Fiber-optic transceivers and fiber-optic cables connected to
transceivers emit laser light that can damage your eyes.
1. If the fiber-optic cable connector is covered by a rubber safety cap, remove the cap. Save the cap.
2. Remove the rubber safety cap from the optical transceiver. Save the cap.
3. Insert the cable connector into the optical transceiver (see
Figure 31: Connecting a Fiber-Optic Cable to an Optical Transceiver Installed in an ACX Series
Router
4. Secure the cables so that they are not supporting their own weight. Place excess cable out of the
way in a neatly coiled loop. Placing fasteners on a loop helps cables maintain their shape.
CAUTION: Do not bend fiber-optic cables beyond their minimum bend radius. An arc
smaller than a few inches in diameter can damage the cables and cause problems that
are difficult to diagnose.
Do not let fiber-optic cables hang free from the connector. Do not allow fastened
loops of cables to dangle, which stresses the cables at the fastening point.
Figure 31 on page 126).
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