<s>
The	O
HomePNA	B-Protocol
Alliance	O
is	O
an	O
incorporated	O
non-profit	O
industry	O
association	O
of	O
companies	O
that	O
develops	O
and	O
standardizes	O
technology	O
for	O
home	O
networking	O
over	O
the	O
existing	O
coaxial	O
cables	O
and	O
telephone	O
wiring	O
within	O
homes	O
,	O
so	O
new	O
wires	O
do	O
not	O
need	O
to	O
be	O
installed	O
.	O
</s>
<s>
HomePNA	B-Protocol
was	O
developed	O
for	O
entertainment	O
applications	O
such	O
as	O
IPTV	O
which	O
require	O
good	O
quality	O
of	O
service	O
(	O
QoS	O
)	O
.	O
</s>
<s>
HomePNA	B-Protocol
3.1	O
uses	O
frequencies	O
above	O
those	O
used	O
for	O
digital	O
subscriber	O
line	O
and	O
analog	O
voice	O
calls	O
over	O
phone	O
wires	O
and	O
below	O
those	O
used	O
for	O
broadcast	O
and	O
direct	O
broadcast	O
satellite	O
TV	O
over	O
coax	O
,	O
so	O
it	O
can	O
coexist	O
with	O
those	O
services	O
on	O
the	O
same	O
wires	O
.	O
</s>
<s>
HomePNA	B-Protocol
does	O
not	O
manufacture	O
products	O
,	O
although	O
its	O
members	O
do	O
.	O
</s>
<s>
HomePNA	B-Protocol
creates	O
industry	O
specifications	O
which	O
it	O
then	O
standardizes	O
under	O
the	O
International	O
Telecommunication	O
Union	O
(	O
ITU	O
)	O
standards	O
body	O
.	O
</s>
<s>
The	O
HomePNA	B-Protocol
Alliance	O
,	O
tests	O
implementations	O
,	O
and	O
certifies	O
products	O
if	O
they	O
pass	O
.	O
</s>
<s>
HomePNA	B-Protocol
promoter	O
companies	O
are	O
AT&T	O
Inc.	O
,	O
Technicolor	O
SA	O
,	O
Pace	O
plc	O
,	O
Sigma	O
Designs	O
,	O
Motorola	O
,	O
Cisco	O
Systems	O
,	O
Sunrise	O
Telecom	O
and	O
K-Micro	O
.	O
</s>
<s>
Devices	O
that	O
use	O
HPNA	B-Protocol
technology	O
as	O
part	O
of	O
whole-home	O
multi-media	O
content	O
products	O
include	O
Advanced	O
Digital	O
Broadcast	O
,	O
Inneoquest	O
and	O
NetSys	O
.	O
</s>
<s>
Alternatives	O
to	O
HomePNA	B-Protocol
include	O
:	O
Power	B-Device
line	I-Device
communication	I-Device
,	O
Wi-Fi	O
,	O
data	B-Protocol
over	I-Protocol
cable	I-Protocol
,	O
and	O
multimedia	O
over	O
coax	O
.	O
</s>
<s>
It	O
was	O
formerly	O
the	O
Home	B-Protocol
Phoneline	I-Protocol
Networking	I-Protocol
Alliance	I-Protocol
,	O
also	O
known	O
as	O
HPNA	B-Protocol
.	O
</s>
<s>
HomePNA	B-Protocol
1.0	O
technology	O
was	O
developed	O
by	O
Tut	O
Systems	O
in	O
the	O
1990s	O
.	O
</s>
<s>
HomePNA	B-Protocol
2.0	O
was	O
developed	O
by	O
Epigram	O
and	O
was	O
approved	O
by	O
the	O
ITU	O
as	O
Recommendations	O
G.9951	O
,	O
G.9952	O
and	O
G.9953	O
.	O
</s>
<s>
HomePNA	B-Protocol
3.0	O
was	O
developed	O
by	O
Broadcom	O
(	O
which	O
had	O
purchased	O
Epigram	O
)	O
and	O
Coppergate	O
Communications	O
and	O
was	O
approved	O
by	O
the	O
ITU	O
as	O
Recommendation	O
G.9954	O
in	O
February	O
2005	O
.	O
</s>
<s>
HomePNA	B-Protocol
3.1	O
was	O
developed	O
by	O
Coppergate	O
Communications	O
and	O
was	O
approved	O
by	O
the	O
ITU	O
as	O
Recommendation	O
G.9954	O
in	O
January	O
2007	O
.	O
</s>
<s>
HomePNA	B-Protocol
3.1	O
added	O
Ethernet	B-Protocol
over	I-Protocol
coax	I-Protocol
.	O
</s>
<s>
In	O
March	O
2009	O
,	O
HomePNA	B-Protocol
announced	O
a	O
liaison	O
agreement	O
with	O
the	O
HomeGrid	O
Forum	O
to	O
promote	O
the	O
ITU-T	B-General_Concept
G.hn	I-General_Concept
wired	O
home	O
networking	O
standard	O
.	O
</s>
<s>
In	O
May	O
2013	O
the	O
HomePNA	B-Protocol
alliance	O
merged	O
with	O
the	O
HomeGrid	O
Forum	O
.	O
</s>
<s>
HomePNA	B-Protocol
uses	O
frequency-division	B-Protocol
multiplexing	I-Protocol
(	O
FDM	O
)	O
,	O
which	O
uses	O
different	O
frequencies	O
for	O
voice	O
and	O
data	O
on	O
the	O
same	O
wires	O
without	O
interfering	O
with	O
each	O
other	O
.	O
</s>
<s>
Two	O
custom	O
chips	O
designed	O
using	O
the	O
HPNA	B-Protocol
specifications	O
were	O
developed	O
by	O
Broadcom	O
:	O
the	O
4100	O
chip	O
can	O
send	O
and	O
receive	O
signals	O
over	O
1,000	O
ft	O
(	O
305	O
m	O
)	O
on	O
a	O
typical	O
phone	O
line	O
.	O
</s>
<s>
A	O
HomePNA	B-Protocol
setup	O
would	O
include	O
a	O
HomePNA	B-Protocol
card	O
or	O
external	O
adapter	O
for	O
each	O
computer	O
,	O
an	O
external	O
adapter	O
,	O
cables	O
,	O
and	O
software	O
.	O
</s>
<s>
A	O
low-pass	B-Algorithm
filter	I-Algorithm
may	O
be	O
needed	O
between	O
any	O
phones	O
and	O
their	O
respective	O
jacks	O
to	O
block	O
noise	O
.	O
</s>
<s>
HomePNA	B-Protocol
adapters	O
come	O
in	O
PCI	B-Protocol
,	O
USB	B-Protocol
,	O
and	O
PC	B-Architecture
Card	I-Architecture
formats	O
.	O
</s>
