Agilent Technologies aurora Duet, User Manual

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Glossary - 8 428856
aurora
Duet
Basic & Primary Rate ISDN Tester - User Guide
SELV
Safety Extra Low Voltage circuit. (A
circuit which is protected from
hazardous voltages).
Simulate
This is when an aurora
Duet
emulates an
NT or a TE, when in this mode an
aurora
Duet
can both transmit and receive
information.
SPID
Service Profile Identifier. A number,
based on your equipment's directory
number, that is used to identify the
equipment on the bus.
Stop bits
In asynchronous serial data
transmission each character is
encapsulated between a start bit and
one or more stop bits.
In order to determine the end of one
character and the start of the next the
line is required to go to an idle state
known as MARKING between
characters and at the start of the next
character it will become active again,
SPACING. By convention we agree
upon a minimum of: 1, 1.5, or 2 stop
bits between characters, the line may be
idle for any additional length of time
until the next character is sent.
Sub Address
The last two digits of an (NUA) not
used by the network in routing. A suffix
of 10 may be used to identify access to
a Viewdata application, a suffix of 20
to access the host email post office
application, and a suffix of 21 to access
on line interactive login.