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21
Parallel port connector (D-Sub 25-pins female): CN3
Pin # Assignment Pin # Assignment
1 Line Printer Strobe 14 Auto Feed
2 PD 0, Parallel Data 0 15 Error
3 PD 1, Parallel Data 1 16 Initialize
4 PD 2, Parallel Data 2 17 Select
5 PD 3, Parallel Data 3 18 Ground
6 PD 4, Parallel Data 4 19 Ground
7 PD 5, Parallel Data 5 20 Ground
8 PD 6, Parallel Data 6 21 Ground
9 PD 7, Parallel Data 7 22 Ground
10 ACK, Acknowledge 23 Ground
11 Busy 24 Ground
12 Paper Empty 25 Ground
13 Select
y Figure:
IrDA connector (5-pins pin-header): CN4
Pin # Assignment
1 +5V
2 FIRTX
3 IRRX
4 Ground
5 IRTX
y Figure:
1
14
13
25
5
1