Manual Number: 00750-004-14
Page 2-1
Chapter 2: Address Selection
Each serial port on the WINCOMM4 board occupies 8 consecutive I/O locations. A dip switch is
used to set the base address for these locations. Be careful when selecting the base address as some
selections conflict with existing PC ports. The following table shows several examples that usually
do not cause a conflict.
SW 4 sets the I/O address for port 1, SW 3 sets the address for port 2, SW 2 sets the I/O address for
port 3, SW 1 sets the address for port 4, as labeled on the cable.
s
s
e
r
d
d
A
y
r
a
n
i
B
s
g
n
i
t
t
e
S
n
o
i
t
i
s
o
P
h
c
t
i
w
S
9
A
0
A
1
2
3
4
5
6
7
7
8
2
-
0
8
2
0
0
0
1
0
1
X
X
X
0
F
F
O
N
O
F
F
O
N
O
N
O
N
O
N
O
7
A
2
-
0
A
2
0
1
0
1
0
1
X
X
X
0
F
F
O
N
O
F
F
O
N
O
F
F
O
N
O
N
O
:
2
M
O
C
F
F
2
-
8
F
2
1
1
1
1
0
1
X
X
X
1
F
F
O
N
O
F
F
O
F
F
O
F
F
O
F
F
O
F
F
O
:
1
M
O
C
F
F
3
-
8
F
3
1
1
1
1
1
1
X
X
X
1
F
F
O
F
F
O
F
F
O
F
F
O
F
F
O
F
F
O
F
F
O
:
4
M
O
C
F
E
2
-
8
E
2
0
1
1
1
0
1
X
X
X
1
F
F
O
N
O
F
F
O
F
F
O
F
F
O
N
O
F
F
O
:
3
M
O
C
F
E
3
-
8
E
3
0
1
1
1
1
1
X
X
X
1
F
F
O
F
F
O
F
F
O
F
F
O
F
F
O
N
O
F
F
O
7
2
3
-
0
2
3
0
1
0
0
1
1
X
X
X
0
F
F
O
F
F
O
N
O
N
O
F
F
O
N
O
N
O
F
2
3
-
8
2
3
0
1
0
0
1
1
X
X
X
1
F
F
O
F
F
O
N
O
N
O
F
F
O
N
O
F
F
O
If you don’t see an address in the table that is compatible with your software, you can determine the
switch setting for a particular address by using the table below. The following table shows the
correlation between the dip switch setting and the address bits used to determine the base address. In
the example below, the address 300 HEX through 307 HEX is selected. 300 HEX = 11 0000 0XXX
in binary representation.
