TSP Edge User’s Manual
40-400-00065, Rev. E
158
GLOSSARY
A bit
The least significant bit of the 6th frame, used to send signaling
information.
A-law
The ITU-T companding standard in the conversion between analog and
digital in PCM systems.
AMI
Alternate Mark Inversion. A T1 line coding format where a successive
Mark is inverted as part of the data stream. This is normally used when
all channels of a T1 are configured for transmission of analog traffic.
ANI
Automatic Number Identification. The number of the Calling Party is
supplied as part of the digital service.
ATS
Advanced Test Scripting software module for the TSP Edge.
B bit
The least significant bit of the 12th frame, used to send signaling
information.
B8ZS
Bipolar 8 Zero Substitution. A T1 data transmission technique that
transmits data at 1.536 Mbps by inserting the pattern 00011011, with
BPVs in the fourth and seventh positions, wherever ones density
requirements are not met by unmodified data. This is used when digital
data channels exist on the T1.
BPV
BiPolar Violation. The presence of two consecutive “one” bits of the
same polarity on the T carrier.
C bit
The least significant bit of the 18th frame, used in ESF format only, to
send signaling information.
Call Originate
Mode
In this mode, the TSP Edge generates calls to the equipment under test.
The Edge counts the calls and display the calls as completed,
unanswered, or busy in the event log.
Call Terminate
Mode
In this mode, the TSP Edge receives calls from the equipment under test.
The Edge counts the calls and displays the calls as completed,
unanswered, or busy in the event log.
CAMA
Centralized Automatic Message Accounting. An automatic message
accounting system that serves more than one switch from a central
location.