<s>
It	O
covers	O
both	O
balanced	O
copper	O
cabling	O
and	O
optical	B-Architecture
fibre	I-Architecture
cabling	O
.	O
</s>
<s>
The	O
standard	O
defines	O
several	O
classes	O
of	O
optical	B-Architecture
fiber	I-Architecture
interconnect	O
:	O
</s>
<s>
OM5	O
fiber	O
is	O
designed	O
for	O
wideband	O
applications	O
using	O
SWDM	O
multiplexing	O
of	O
4	O
–	O
16	O
carriers	O
(	O
40G	O
=	O
4λ×10G	O
,	O
100G	B-Protocol
=	O
4λ×25G	O
,	O
400G	O
=	O
4×4λ×25G	O
)	O
in	O
the	O
850	O
–	O
953nm	O
range	O
.	O
</s>
<s>
Class	O
F	O
channel	O
and	O
Category	B-Protocol
7	I-Protocol
cable	I-Protocol
are	O
backward	B-General_Concept
compatible	I-General_Concept
with	O
ClassD/Category5e	O
and	O
ClassE/Category6	O
.	O
</s>
<s>
It	O
contains	O
four	O
twisted	O
copper	O
wire	O
pairs	O
,	O
just	O
like	O
the	O
earlier	O
standards	O
,	O
terminated	O
either	O
with	O
GG45	B-Device
electrical	O
connectors	O
or	O
with	O
TERA	B-Device
connectors	O
rated	O
for	O
transmission	O
frequencies	O
of	O
up	O
to	O
600MHz	O
.	O
</s>
<s>
However	O
,	O
in	O
2006	O
,	O
Category	B-Protocol
6A	I-Protocol
was	O
ratified	O
for	O
Ethernet	O
to	O
allow	O
10Gbit/s	O
while	O
still	O
using	O
the	O
traditional	O
8P8C	O
connector	O
(	O
often	O
erroneously	O
referred	O
to	O
as	O
RJ-45	O
,	O
a	O
visually	O
similar	O
connector	O
)	O
.	O
</s>
<s>
Most	O
manufacturers	O
of	O
active	O
equipment	O
and	O
network	O
cards	O
have	O
chosen	O
to	O
support	O
the	O
8P8C	O
for	O
their	O
10	O
gigabit	O
Ethernet	O
products	O
on	O
copper	O
and	O
not	O
the	O
GG45	B-Device
,	O
ARJ45	B-Device
,	O
or	O
TERA	B-Device
.	O
</s>
<s>
Therefore	O
,	O
the	O
Category	O
6	O
specification	O
was	O
revised	O
to	O
Category	B-Protocol
6A	I-Protocol
to	O
permit	O
this	O
use	O
;	O
products	O
therefore	O
require	O
a	O
Class	O
EA	O
channel	O
(	O
ie	O
,	O
Cat6A	B-Protocol
)	O
.	O
</s>
<s>
Class	O
FA	O
(	O
Class	O
F	O
Augmented	O
)	O
channels	O
and	O
Category	O
7A	O
cables	O
,	O
introduced	O
by	O
ISO	O
11801	O
Edition	O
2	O
Amendment	O
2	O
(	O
2010	O
)	O
,	O
are	O
defined	O
at	O
frequencies	O
up	O
to	O
1000MHz	O
,	O
suitable	O
for	O
multiple	O
applications	O
including	O
CATV	B-Protocol
(	O
862MHz	O
)	O
.	O
</s>
<s>
The	O
intent	O
of	O
the	O
Class	O
FA	O
was	O
to	O
possibly	O
support	O
the	O
future	O
40gigabit	O
Ethernet	O
:	O
40Gbase-T	O
.	O
Simulation	O
results	O
have	O
shown	O
that	O
40	B-Protocol
gigabit	I-Protocol
Ethernet	I-Protocol
may	O
be	O
possible	O
at	O
50meters	O
and	O
100gigabit	O
Ethernet	O
at	O
15meters	O
.	O
</s>
<s>
Class	O
I	O
channel	O
(	O
Category	O
8.1	O
cable	O
)	O
:	O
minimum	O
cable	O
design	O
U/FTP	O
or	O
F/UTP	O
,	O
fully	O
backward	B-General_Concept
compatible	I-General_Concept
and	O
interoperable	O
with	O
Class	O
EA	O
(	O
Category6A	O
)	O
using	O
8P8C	O
connectors	O
;	O
</s>
<s>
Class	O
II	O
channel	O
(	O
Category	O
8.2	O
cable	O
)	O
:	O
F/FTP	O
or	O
S/FTP	O
minimum	O
,	O
interoperable	O
with	O
ClassFA	O
(	O
Category7A	O
)	O
using	O
TERA	B-Device
or	O
GG45	B-Device
.	O
</s>
<s>
In	O
November	O
2017	O
,	O
a	O
new	O
edition	O
was	O
released	O
by	O
ISO/IEC	B-Protocol
JTC	I-Protocol
1/SC	I-Protocol
25	I-Protocol
"	O
Interconnection	O
of	O
information	O
technology	O
equipment	O
"	O
.	O
</s>
