<s>
Isochronous	B-Device
burst	I-Device
transmission	I-Device
is	O
a	O
method	O
of	O
transmission	O
.	O
</s>
<s>
In	O
a	O
data	O
network	O
where	O
the	O
information-bearer	O
channel	O
rate	O
is	O
higher	O
than	O
the	O
input	O
data	O
signaling	O
rate	O
,	O
transmission	O
is	O
performed	O
by	O
interrupting	O
,	O
at	O
controlled	O
intervals	O
,	O
the	O
data	B-General_Concept
stream	I-General_Concept
being	O
transmitted	O
.	O
</s>
<s>
Note	O
4	O
:	O
Isochronous	B-Device
burst	I-Device
transmission	I-Device
has	O
particular	O
application	O
where	O
envelopes	O
are	O
being	O
transferred	O
between	O
data	O
circuit	O
terminating	O
equipment	O
(	O
DCE	O
)	O
and	O
only	O
the	O
bytes	O
contained	O
within	O
the	O
envelopes	O
are	O
being	O
transferred	O
between	O
the	O
DCE	O
and	O
the	O
DTE	O
.	O
</s>
