<s>
EIA	B-Protocol
RF	I-Protocol
Connectors	I-Protocol
are	O
used	O
to	O
connect	O
two	O
items	O
of	O
high	O
power	O
radio	O
frequency	O
rigid	O
or	O
semi-rigid	O
(	O
flexline	O
)	O
coaxial	O
transmission	O
line	O
.	O
</s>
<s>
The	O
flange	O
design	O
,	O
inner	O
and	O
outer	O
conductor	O
dimensions	O
are	O
standardized	O
,	O
by	O
EIA	O
,	O
in	O
the	O
RS-225	B-Protocol
,	O
50	O
Ω	O
(	O
ohm	O
)	O
,	O
and	O
RS-259	B-Protocol
,	O
75	O
Ω	O
,	O
standards	O
.	O
</s>
<s>
Below	O
this	O
,	O
other	O
types	O
such	O
as	O
the	O
DIN7/16	B-Protocol
are	O
more	O
popular	O
.	O
</s>
