Operations Manual

Product Glossary - R0.1 glossary-1
CONFIDENTIAL & PROPRIETARY
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Invisible Fiber™ Product
Glossary
10BaseFL
Part of the IEEE 802.1j standard for 10 Mbps Ethernet fiber.
10BaseT
IEEE 802.3 standard specifying Ethernet over unshielded twisted pair cables.
99.999% availability
(Also known as five 9s availability.) Amount of time the system is expected to
be available. If the system is available 99.999% of the time, expected down
time is approximately six minutes per year, derived as follows:
Days per year X hours per day X (100–99.999) ÷ 100 X 60 =
365.25 X 24 X (100–99.999) ÷ 100 X 60 = 5.2 minutes
100BaseFX
Part of the IEEE 802.3u standard for 100 Mbps Ethernet over fiber.
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ABAM
A designation of Lucent Technologies for 22 gauge, 110 ohm, insulated,
twisted-pair cable used to connect an ADM switch to a T1 distribution panel.