TSP Edge User’s Manual
40-400-00065, Rev. E
163
LAN
Local Area Network
LBO
Line Build-out
Line Build-out
A switchable attenuator used by a CSU to operate within optimum
parameters with a repeater that is less than 3000 feet away.
Line Coding
Options for T1/E1 parameter configuration in the Edge configuration
software.
Loop Start
Loop Start is a telephony term used to define a circuit that uses the
presence of loop current (off hook) to indicate the start of a call from the
CPE.
mu-Law
A PCM encoding algorithm where the analog voice signal is sampled
8,000 times per second, with each sample being represented by an 8 bit
value, thus yielding a raw 64 Kbps transmission rate. A sample consists
of a sign bit, at a 3 bit segment specifying a logarithmic range, and a 4
bit step offset into the range.
Override
The ability to access a networked Edge unit while it is in use. This
feature allows users to regain control of the Edge if the controlling PC
loses its network connection.
PCM
Pulse Code Modulation. A method by which an audio signal is
represented as digital data.
PCM Coding
Options for T1/E1 parameter configuration in the Edge software.
POTS
Plain Old Telephone Service, the traditional voice service provided by
phone companies.
PRI
A type of ISDN connection, typically used for connecting a PBX to a
CO. A software module available for the TSP Edge.
PSTN
Public Switched Telephone Network
Robbed Bit
Signaling
Signaling that uses bits known as A and B bits. These bits are sent by
each side of a T1 termination and are buried in the voice data of each
voice channel in the T1 circuit.
SF
Superframe. A framing format that uses 12 frames. See D4.
Subaddress
Channel configuration option (available for T1-PRI or E1-PRI) for an
optional extension of the ISDN phone number.
Содержание TSP Edge
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