Table of Contents
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OC3port Plus
Users Manual
payload
payload pointer
PCR (Peak Cell Rate)
PT
RDI
receive filter
SCR
scrambling
SDH
SECTION LOF
SECTION LOS
SECTION OOF
selection line
SONET
C-4
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That portion of an ATM cell that contains user information or
data as opposed to routing or control information. Contrast with
header.
Indicates the starting point of a SONET synchronous payload
envelope.
The maximum number of cells that can be transmitted on a
given virtual channel.
Acronym for payload type. Bits in the header that indicate what
type of information is being carried by the cell. For example,
bits are used to distinguish between cells carrying user
information and cells carrying operations and maintenance
information.
Acronym for Remote Defect Indication.
A piece of logic that allows the OC3port Plus to discriminate
among incoming data streams based on specific header
information. The filter uses pattern matching to capture certain
traffic record statistics based upon specific header values.
Acronym for Sustained Cell Rate. The average number of cells
that can be transmitted on a given virtual channel.
A method whereby the bits are pseudo-randomly mixed to
provide for easier clock recovery and recovery of data. Used to
guarantee a higher ones density and no false triggering of
alarms.
Acronym for Synchronous Digital Hierarchy. The European
equivalent of SONET.
Acronym for SECTION Loss of Frame.
Acronym for SECTION Loss of Signal.
Acronym for SECTION Out-of-Frame.
On the OC3port Plus menus, the line that appears between the
two blue directional arrows and, in some cases, is preceded by
the greater-than (>) symbol. When a menu
Acronym for Synchronous Optical Network. A format and
framing structure that provides a physical layer for transporting
and managing digital traffic over fiber optic facilities.
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