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Chapter 1
Parallel Interface Port
Unlike the serial port, parallel interface ports have been standardized and should
not present any difficulty interfacing peripherals to your system. Sometimes
called Centronics port, the parallel port is almost exclusively used with printers.
The parallel port on your system has a 25-pin Connector (see picture below). The
pinouts for the parallel port are shown in the table below.
1
25
Signal
-Strobe
Data 0
Data 1
Data 2
Data 3
2
Data 4
Data 5
Data 6
Data 7
-Ack
Busy
Paper Empty
+Select
-Auto FDXT
-Error
-Init
-SLCTN
Ground
Ground
Ground
Ground
26
Ground
Ground
Ground
Ground
NC
1-17
Motherboard Description
Pin
1
3
5
7
9
11
13
15
17
19
21
23
25
2
4
6
8
10
12
14
16
18
20
22
24
26
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