Glossary
Mbps
(megabits per second)
»
One million bits
per second.
MC
(main cross-connect)
»
The MC is the
cross-connect in the ER (equipment room) for
connecting entrance cables, backbone cables
and equipment cables.
MHz
(megahertz)
»
A unit of frequency denoting
one million hertz (1,000,000 cycles per second).
Mud Ring
»
Industry jargon for a plaster ring/frame
mounted in a wall to support a telecommunications
outlet such as a faceplate. Essentially, mud rings are
backless junction boxes.
NEC
(National Electric Code)
»
The NEC or NFPA 70
(NFPA is the National Fire Protection Association,
the organization that publishes the Code) addresses
safeguards for people and property from electrical
hazards. The NEC also specifies fire resistance and
smoke ratings for building materials and is recognized
and enforced in the United States. NEC article 800
addresses requirements for communications circuits.
NEXT
(near-end crosstalk)
»
Electrical noise
coupled from one pair of wires to another within
a multi-pair cable.
Part 68
»
Requirements specifications established
by the FCC as the minimum acceptable protection
communications equipment must provide the
telephone network. Part 68 also identified
dimensional and material requirements for modular
jacks and plugs, as well as the metallic contacts in
these devices. Plug and jack requirements are now
governed by ANSI/TIA-1096-A.
Patch Cord
»
A cord made from 4-pair 100-ohm
balanced twisted-pair cable. Patch cords may be
shielded or unshielded, depending on the type of
system being installed. They are typically wired
T568 A or B with an 8-position, 8-conductor (8P8C)
plug on each end. Work area and TR patch cords
are made from stranded cable, which has better
flexibility, durability and longer life than solid-
conductor cords.
Patching
»
A means of connecting circuits via cords
and connectors that can be easily disconnected and
reconnected at another point. May be accomplished
by using modular cords connected between jack
fields or by patch cord assemblies that plug onto
connecting blocks.
Patch Panel
»
A piece of connecting hardware
designed for use in a standard 19" equipment rack
or cabinet. Standard patch panels have modular
jack appearances on the front, and 110-style IDC
connections on the rear. Field-configurable patch
panels can be loaded with a variety of jacks or other
connectors for mixed-media installations, or where
the use of various jack colors is desired.
Performance
»
The totality of a communication
transmission’s characteristics, including rate
of transfer, barriers to peak transfer rate, and
comparison to applicable standards. Compare with
Compliance. A device can exhibit performance
characteristics without being compliant to an
industry standard.
|
(800) 722 2082
|
+1 (425) 486 2222
|
85
Glossary
Glossary and References >
Testing
Product
Overview
Termination
Cat 6A
Glossary and
References
Installation
Applications
