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Parallel connector
13
25
Pin No.
Signal name
1
STORE
2
DATA 0
3
DATA 1
4
DATA 2
5
DATA 3
6
DATA 4
7
DATA 5
8
DATA 6
9
DATA 7
10
ACK
11
BUSY
12
PE
13
SELECT
14
AUTOFD
15
ERROR
16
INIT
17
SLCTIN
18 to 25
GND
Serial connector
1
5
6
9
Pin No.
Signal name
1
CD
2
RD
3
TD
4
DTR
5
GND
6
DSR
7
RTS
8
CTS
9
RI
1
14
I/O
Description
I/O
Strobe
I/O
Data 0
I/O
Data 1
I/O
Data 2
I/O
Data 3
I/O
Data 4
I/O
Data 5
I/O
Data 6
I/O
Data 7
Input
Acknowledgment
Input
Busy
Input
No paper
Input
Input Select
Output
Automatic feed
Input
Error
Output
Initialize
Output
Select
—
Ground
I/O
Description
Input
Carrier detect
Input
Receive data
Output
Transmit data
Output
Data terminal ready
—
Ground
Input
Data set ready
Output
Request to send
Input
Clear to send
Input
Ring indicate
71
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