2. INTERFACES
TPTCM
4
2-
2.3 CENTRONICS PARALLEL
The printer has a Centronics parallel interface and is connected by means of
a 25-pin female connector (see fig. 2.4). In the following table, the signals
present on the connector are listed:
N
I
P N
I
P N
I
P N
I
P N
I
P
E
L
A
N
G
E
S
E
L
A
N
G
E
S
E
L
A
N
G
E
S
E
L
A
N
G
E
S
E
L
A
N
G
E
S
E
N
O
I
Z
N
U
F
E
N
O
I
Z
N
U
F
E
N
O
I
Z
N
U
F
E
N
O
I
Z
N
U
F
E
N
O
I
Z
N
U
F
1
1
1
1
1
e
b
o
r
t
S
t
u
p
n
i
e
b
o
r
t
S
2
2
2
2
2
0
D
0
t
i
b
t
u
p
n
i
a
t
a
D
3
3
3
3
3
1
D
1
t
i
b
t
u
p
n
i
a
t
a
D
4
4
4
4
4
2
D
2
t
i
b
t
u
p
n
i
a
t
a
D
5
5
5
5
5
3
D
3
t
i
b
t
u
p
n
i
a
t
a
D
6
6
6
6
6
4
D
4
t
i
b
t
u
p
n
i
a
t
a
D
7
7
7
7
7
5
D
5
t
i
b
t
u
p
n
i
a
t
a
D
8
8
8
8
8
6
D
6
t
i
b
t
u
p
n
i
a
t
a
D
9
9
9
9
9
7
D
7
t
i
b
t
u
p
n
i
a
t
a
D
0
10
10
10
10
1
K
C
A
e
g
d
e
l
w
o
n
k
c
A
1
11
11
11
11
1
Y
S
U
B
y
s
u
B
2
12
12
12
12
1
E
P
d
n
e
r
e
p
a
P
3
13
13
13
13
1
T
C
E
L
E
S
d
n
e
r
e
p
a
p
r
a
e
N
/
e
c
n
e
s
e
r
p
t
e
k
c
i
T
/
t
c
e
l
e
S
)
*
( )
*
( )
*
( )
*
( )
*
(
4
14
14
14
14
1
.
C
.
N
d
e
t
c
e
n
n
o
c
t
o
N
5
15
15
15
15
1
T
L
U
A
F
d
n
e
r
e
p
a
p
r
a
e
N
/
e
c
n
e
s
e
r
p
t
e
k
c
i
T
/
t
l
u
a
F
)
*
( )
*
( )
*
( )
*
( )
*
(
6
16
16
16
16
1
T
E
S
E
R
t
e
s
e
r
r
e
t
n
i
r
P
7
17
17
17
17
1
D
N
G
D
N
G
8
18
18
18
18
1
.
C
.
N
d
e
t
c
e
n
n
o
c
t
o
N
5
2
-
9
1
5
2
-
9
1
5
2
-
9
1
5
2
-
9
1
5
2
-
9
1
D
N
G
D
N
G
For the parallel connector, the connection between printer and Personal
Computer, must be made with a 25- pin- to- pin connector.
(Tab.2.3)
