LAN connector (100BASE-TX/10BASE-T)
Pin number
Signal name
1
TD+
2
TD–
3
RD+
4
NC
5
NC
6
RD–
7
NC
8
NC
Parallel connector
Pin number
Signal name
1
*STROBE
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
18–25
GND
68
Direction
Output
Output
Input
–
–
Input
–
–
Direction
Input and output
Input and output
Input and output
Input and output
Input and output
Input and output
Input and output
Input and output
Input and output
Input
Input
Input
Input
Output
Input
Output
Output
–
Description
Send data +
Send data –
Receive data +
Not connected
Not connected
Receive data –
Not connected
Not connected
Description
Strobe
Data 0
Data 1
Data 2
Data 3
Data 4
Data 5
Data 6
Data 7
Acknowledgment
Busy
Paper out
Select
Automatic feeding
Error
Initialization
Select
Ground