Nortel Passport 15000, Установка и обслуживание оборудования, Страница: 290 / 874

290 Chapter 17 Hardware procedures
241-1501-240 5.2S2
Cleaning MT-RJ connectors
Clean MT-RJ connectors to maintain optimum connectivity between the end
of a fiber cable and its connection, or to stop an intermittent transmission
error.
Prerequisites
• You must be familiar with “Safety considerations and best practices”
(page 53).
• Refer to the table “Cleaning tools and supplies for fiber connectors”
(page 287)
• Avoid direct skin contact with the part of the connector, ferrules, or
transceiver being cleaned.
• Protect your eyes with safety goggles during cleaning.
• Work in a well-ventilated area. Use small amounts of cleaning alcohol
and avoid breathing the vapors.
• MT-RJ connectors should only be cleaned when they are suspected to be
dirty. Excessive contact can damage the fiber and cause full or partial
signal loss.
• The figure “MT-RJ fiber connector” (page 292) shows the location of the
fiber ends on a MT-RJ connector. These are not likely to be visible to
your eye.
• The ferrule is the rigid stem at the connector that contains the optical
fiber. Only clean one ferrule at a time. Wear vinyl gloves to avoid
contaminating the ferrule or the cleaning surface with skin oil.
• Clean the transceiver (or adapter) before cleaning the connector that is to
be plugged into it. See “Cleaning the bore of a transceiver” (page 293).
WARNING
Risk of eye injury by laser
Never look directly into the end of a fiber cable, let an end
pass in front of your eyes, or use an optical device to look
at the end of an optical fiber unless you are certain the
other end is not connected. The laser travelling through a
fiber cable can injure the human retina.