Verilink AS2000: The Basics (880-502981-001) Product Manual Instrukcja Użytkownika Pobierz pdf (Strona 153)

Acronyms and Definitions

Verilink Access System 2000: Basics Glossary-33

M1-3 An asynchronous framing format

that uses all 21 DS3 C-bits for bit

stuffing. The standard M1-3

format cannot provide end-to-end

parity information.

Management Information Base (MIB) The information that SNMP can

access, structured as a hierarchy.

In common usage, MIB is in

reference to a sub-branch of the

entire MIB.

M-bit M-bits (multiframing bits) form the

DS3 multiframe alignment signal.

There are three M-bits per DS3

frame. The M-bits are located in

the first bit position in block 1 of

subframes 5, 6, and 7. DS3

equipment use the M-bit “010”

pattern to locate the seven

subframes.

Mbit/s Megabits per second: a

measurement of data transmission

speed equaling one million binary

digits transmitted or received

through a medium every (one)

second.

Megahertz Megahertz means “million hertz”

or “million cycles per second.”

MHz See

Megahertz

MIB See

Management Information

Base (MIB)

microsecond (µs) One millionth of a second.

MLS See

Multi-line Shelf

multiframe An E1 frame alignment pattern in

which 16 consecutive E1 frames

are grouped together.

Multi-line Shelf A shelf unit that houses the three

data buses (A, B, & C), 13 (or

fewer) AS2000 application

modules and two power supplies.

multiplexer (mux) A multiplexer combines one or

more lower bandwidth lines into a

higher bandwidth line. For

example, 28 T1’s are multiplexed

to form a T3 line.

mux See

multiplexer (mux)

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