A
A
R
R
-
-
B
B
1
1
3
3
2
2
0
0
U
U
s
s
e
e
r
r
’
’
s
s
G
G
u
u
i
i
d
d
e
e
3.1 BOARD
LAYOUT
The AR-B1320 is a small, easy to use, all-in-one 386SX grade CPU board with 2 RS-232/RS-485
ports and a flash disk. Below is the AR-B1320 board layout.
Figure 3-1 AR-B1320 Board Layout
3-2