<s>
"	O
Cable	B-Device
router	I-Device
"	O
has	O
two	O
basic	O
meanings	O
:	O
</s>
<s>
Single	O
Cable	B-Device
Router	I-Device
(	O
SCR	O
)	O
-	O
a	O
down-conversion	O
device	O
for	O
the	O
radio	O
data	O
link	O
.	O
</s>
<s>
A	O
piece	O
of	O
computer	B-Architecture
network	I-Architecture
equipment	O
located	O
between	O
cable	B-Device
modem	I-Device
and	O
LAN	B-General_Concept
,	O
performing	O
functions	O
of	O
the	O
network	B-Protocol
router	I-Protocol
in	O
a	O
modem	B-Application
.	O
</s>
<s>
Cable	B-Device
routers	I-Device
are	O
usually	O
integrated	O
with	O
the	O
modem	B-Application
,	O
frequently	O
incorporating	O
firewall	B-Application
,	O
proxy	B-Application
,	O
or	O
network	B-Application
gateway	I-Application
functions	O
as	O
well	O
.	O
</s>
