<s>
Fbus	B-Architecture
(	O
for	O
"	O
Fast	O
Bus	O
"	O
)	O
is	O
an	O
ANSI/IEEE	O
data	B-General_Concept
bus	I-General_Concept
protocol	O
oriented	O
towards	O
backplanes	B-Architecture
and	O
cell	O
phones	O
.	O
</s>
<s>
The	O
FBus	B-Architecture
is	O
a	O
bi-directional	O
full-duplex	O
serial	O
type	O
bus	O
running	O
at	O
115,200	O
bit/s	O
,	O
8	O
data	O
bits	O
,	O
no	O
parity	O
,	O
one	O
stop	O
bit	O
(	O
8N1	O
)	O
.	O
</s>
<s>
Much	O
like	O
a	O
standard	O
RS-232	O
serial	B-Protocol
port	I-Protocol
,	O
FBus	B-Architecture
connections	O
use	O
one	O
pin	O
for	O
data	O
transmit	O
,	O
one	O
pin	O
for	O
data	O
receive	O
and	O
one	O
pin	O
for	O
ground	O
.	O
</s>
<s>
Fbus	B-Architecture
was	O
developed	O
by	O
Nokia	O
as	O
an	O
improved	O
replacement	O
of	O
the	O
Mbus	O
,	O
which	O
is	O
only	O
half-duplex	O
and	O
transfers	O
at	O
a	O
slower	O
speed	O
of	O
9600	O
bit/s	O
.	O
</s>
<s>
The	O
Fast	O
Bus	O
connection	O
on	O
a	O
cell	O
phone	O
can	O
be	O
interfaced	O
with	O
an	O
RS-232	O
serial	B-Protocol
port	I-Protocol
by	O
building	O
a	O
custom	O
cable	O
.	O
</s>
