Panasonic 1200N - Manual (Page 164)

Glossary
B-2 Centillion 1200N ATM Switch User Manual
NTP 297-8103-903
AAL-5
ATM Adaptation Layer Type 5: AAL functions in support of variable bit rate, delay-
tolerant connection-oriented data traffic requiring minimal sequencing or error
detection support.
AALP
Audible Alarm Panel
ABR
Available Bit Rate: ABR is an ATM layer service category for which the limiting
ATM layer transfer characteristics provided by the network may change subsequent
to connection establishment. A flow control mechanism is specified which supports
several types of feedback to control the source rate in response to changing ATM
layer transfer characteristics. It is expected that an end-system that adapts its traffic
in accordance with the feedback will experience a low cell loss ratio and obtain a
fair share of the available bandwidth according to a network specific allocation
policy. Cell delay variation is not controlled in this service, although admitted cells
are not delayed unnecessarily.
AC
Alternating Current
ACH
Act Change
ACI
Active Cell Indication
ACK
Acknowledgmen
ACM
Address Complete Message: A BISUP call control message from the receiving
exchange to sending exchange indicating the completion of address information.