2. INTERFACES
SMICE-PS
3
2-
2.2 SERIAL - RS422
The printer has an RS422 serial interface with a rectangular 25-pin female
connector. The signals on the connector pins and their connection to a de-
vice are shown in the table 2.2.
N
I
P N
I
P N
I
P N
I
P N
I
P
L
A
N
G
I
S
L
A
N
G
I
S
L
A
N
G
I
S
L
A
N
G
I
S
L
A
N
G
I
S
T
U
O
/
N
I
T
U
O
/
N
I
T
U
O
/
N
I
T
U
O
/
N
I
T
U
O
/
N
I
N
O
I
T
P
I
R
C
S
E
D
N
O
I
T
P
I
R
C
S
E
D
N
O
I
T
P
I
R
C
S
E
D
N
O
I
T
P
I
R
C
S
E
D
N
O
I
T
P
I
R
C
S
E
D
2
12
12
12
12
1
-
2
2
4
X
T
T
U
O
)
t
s
o
h
m
o
r
f
(
t
u
p
t
u
o
l
a
i
r
e
S
.
a
t
a
d
e
v
i
e
c
e
R
3
13
13
13
13
1
+
2
2
4
X
T
T
U
O
)
t
s
o
h
m
o
r
f
(
t
u
p
t
u
o
l
a
i
r
e
S
.
a
t
a
d
e
v
i
e
c
e
R
3
23
23
23
23
2
-
2
2
4
X
R
N
I
)
t
s
o
h
s
d
r
a
w
o
t
(
t
u
p
n
i
l
a
i
r
e
S
.
a
t
a
d
t
i
m
s
n
a
r
T
4
24
24
24
24
2
+
2
2
4
X
R
N
I
)
t
s
o
h
s
d
r
a
w
o
t
(
t
u
p
n
i
l
a
i
r
e
S
.
a
t
a
d
t
i
m
s
n
a
r
T
The diagram below illustrates the connection between the printer and a de-
vice using an RS422 interface.
(Tab.2.2)
(Fig.2.4)