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● LAN connector (100BASE-TX/10BASE-T)
Pin number Signal name Direction Description
1 TD+ Output Send data +
2 TD– Output Send data –
3 RD+ Input Receive data +
4 NC – Not connected
5 NC – Not connected
6 RD– Input Receive data –
7 NC – Not connected
8 NC – Not connected
● Parallel connector
Pin number Signal name Direction Description
1 *STROBE Input and output Strobe
2 DATA 0 Input and output Data 0
3 DATA 1 Input and output Data 1
4 DATA 2 Input and output Data 2
5 DATA 3 Input and output Data 3
6 DATA 4 Input and output Data 4
7 DATA 5 Input and output Data 5
8 DATA 6 Input and output Data 6
9 DATA 7 Input and output Data 7
10 *ACK Input Acknowledge
11 BUSY Input Busy
12 PE Input Out of paper
13 SELECT Input Select
14 *AUTOFD Output Auto forward
15 *ERROR Input Error
16 *INIT Output Initialization
17 SLCTIN Output Select
18–25 GND – Ground
CHAPTER 5 Bennett (53-60) 12/6/02, 10:31 AM58