Panasonic 1200N - Manual (Page 222)

P Glossary
B-60 Centillion 1200N ATM Switch User Manual
NTP 297-8103-903
PRI
Primary Rate Interface: An ISDN standard for provisioning of 1.544 Mbps (DS1)
ISDN services. The standard supports 23 "B" channels of 64 kbps each and one "D"
channel of 64 kbps.
Primitive
An abstract, implementation independent, interaction between a layer service user
and a layer service provider.
Private ATM Address
A twenty-byte address used to identify an ATM connection termination point.
Protocol
A set of rules and formats (semantic and syntactic) that determines the
communication behavior of layer entities in the performance of the layer functions.
Protocol Control Information
Information exchanged between corresponding entities, using a lower layer
connection, to coordinate their joint operation.
PT
Payload Type: Payload Type is a 3-bit field in the ATM cell header that
discriminates between a cell carrying management information or one which is
carrying user information.
PTI
Payload Type Indicator: Payload Type Indicator is the Payload Type field value
distinguishing the various management cells and user cells. Example: Resource
Management cell has PTI=110, end-to-end OAM F5 Flow cell has PTI=101.
PTMPT
Point-To-Multipoint: A main source to many destination connections.
PTS
Presentation Time Stamp: A timestamp that is inserted by the MPEG-2 encoder into
the packetized elementary stream to allow the decoder to synchronize different
elementary streams (i.e. lip sync).