Glossary of Terms
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5
Glossary of Terms
Here are some descriptions of most used abbreviations in this manual:
AIS
Alarm Indication Signal
BRI
Basic Rate Interface
CBUPRI/E1
Primary Rate Interface Module (E1 only)
CRC
Cyclic Redundancy Check (an indication of errors
received by monitoring the CRC bits in timeslot 0
from the ISDN)
FCC
Federal Communications Commission (USA)
MSN
Multiple Subscriber Number (an ISDN address
method of defining a specific user port for a call
destination)
NT
Network Termination
PRI
Primary Rate Interface
SBULSM
LAN Shelf Manager Module
SBUGSM
Generic Shelf Manager Card
SBUPRI-23
Primary Rate Interface Module (T1 version)
SBUPRI-30
Primary Rate Interface Module (E1 version)
SBUQHS
Quad High Speed Access Module