<s>
Ethernet	B-Protocol
over	I-Protocol
Coax	I-Protocol
(	O
EoC	O
)	O
is	O
a	O
family	O
of	O
technologies	O
that	O
supports	O
the	O
transmission	O
of	O
Ethernet	O
frames	O
over	O
coaxial	O
cable	O
.	O
</s>
<s>
The	O
first	O
Ethernet	O
standard	O
,	O
known	O
as	O
10BASE5	O
(	O
ThickNet	O
)	O
in	O
the	O
family	O
of	O
IEEE	O
802.3	O
,	O
specified	O
baseband	B-Algorithm
operation	O
over	O
50	O
ohm	O
coaxial	O
cable	O
,	O
which	O
remained	O
the	O
principal	O
medium	O
into	O
the	O
1980s	O
,	O
when	O
10BASE2	O
(	O
ThinNet	O
)	O
coax	O
replaced	O
it	O
in	O
deployments	O
in	O
the	O
1980s	O
;	O
both	O
being	O
replaced	O
in	O
the	O
1990s	O
when	O
thinner	O
,	O
cheaper	O
twisted	O
pair	O
cabling	O
came	O
to	O
dominate	O
the	O
market	O
.	O
</s>
<s>
The	O
ITU-T	B-General_Concept
G.hn	I-General_Concept
standard	O
provides	O
high-speed	O
(	O
up	O
to	O
1	O
Gigabit/s	O
)	O
local	O
area	O
networking	O
over	O
existing	O
home	O
wires	O
,	O
including	O
coaxial	O
cable	O
,	O
power	O
lines	O
and	O
phone	O
lines	O
.	O
</s>
<s>
It	O
defines	O
an	O
Application	O
Protocol	O
Convergence	O
(	O
APC	O
)	O
layer	O
for	O
encapsulation	O
standard	O
802.3	O
Ethernet	O
frames	O
into	O
G.hn	B-General_Concept
MAC	O
Service	O
Data	O
Units	O
(	O
MSDUs	O
)	O
.	O
</s>
<s>
Other	O
ITU-T	O
standards	O
for	O
home	O
networking	O
over	O
coaxial	O
cable	O
include	O
G.9954	O
,	O
also	O
known	O
as	O
HomePNA	B-Protocol
3.1	O
.	O
</s>
<s>
Most	O
EoC	O
technologies	O
are	O
designed	O
to	O
operate	O
in	O
frequency	B-Algorithm
bands	I-Algorithm
above	O
1GHz	O
,	O
which	O
is	O
the	O
upper	O
bound	O
of	O
television	O
signals	O
and	O
for	O
systems	O
designed	O
to	O
operate	O
in	O
North	O
America	O
using	O
the	O
SCTE	O
55-1	O
and	O
SCTE	O
55-2	O
CATV	O
transmission	O
systems	O
,	O
as	O
well	O
as	O
in	O
most	O
of	O
Europe	O
and	O
portions	O
of	O
Asia	O
.	O
</s>
