Installation Instructions

media A substance that transmits data between ports; usually fiber optic cables or
category 5 unshielded twisted pair (UTP) copper wires.
metropolitan area
network (MAN)
A broadband network that covers an area larger than a Local Area Network.
multimode fiber
(MMF)
A fiber with a core diameter larger than the wavelength of light transmitted
that you can use to propagate many modes of light. Commonly used with
LED sources for low speed and short distance lengths. Typical core sizes
(measured in microns) are 50/125, 62.5/125 and 100/140.
multiplexing
Carriage of multiple channels over a single transmission medium; a process
where a dedicated circuit is shared by multiple users. Typically, data
streams intersperse on a bit or byte basis (time division), or separate by
different carrier frequencies (frequency division).
nanometer (nm)
One billionth of a meter (10
-9
meter). A unit of measure commonly used to
express the wavelengths of light.
QSFP+ A hot pluggable, quad small form-factor pluggable plus (QSFP+)
transceiver, which is used in 40 Gbps and 4x10 Gbps Ethernet applications.
SFP A hot pluggable, small form-factor pluggable (SFP) transceiver, which is
used in Ethernet applications up to 1 Gbps.
SFP+ A hot pluggable, small form-factor pluggable plus (SFP+) transceiver, which
is used in Ethernet applications up to 10 Gbps. It is similar in physical
appearance to SFP transceivers.
single-mode fiber
(SMF)
One of the various light waves transmitted in an optical fiber. Each optical
signal generates many modes, but in single-mode fiber only one mode is
transmitted. Transmission occurs through a small diameter core
(approximately 10 micrometers), with a cladding that is 10 times the core
diameter. These fibers have a potential bandwidth of 50 to 100 gigahertz
(GHz) per kilometer.
unshielded twisted
pair (UTP)
A cable with one or more pairs of twisted insulated copper conductors
bound in a single plastic sheath.
Glossary
December 2016 Installing Transceivers and Optical Components on Avaya VSP Operating System
Software 92
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