<s>
The	O
Aeronautical	B-Device
Telecommunication	I-Device
Network	I-Device
(	O
ATN	O
)	O
is	O
an	O
internetwork	B-Architecture
architecture	B-Architecture
that	O
allows	O
ground/ground	O
,	O
air/ground	O
,	O
and	O
avionic	O
data	O
subnetworks	O
to	O
interoperate	O
by	O
adopting	O
common	O
interface	O
services	O
and	O
protocols	O
based	O
on	O
the	O
ISO	O
OSI	O
Reference	O
Model	O
.	O
</s>
