18 SBC-411/411E User Manual
Parallel port connector (CN3)
Normally, the parallel port is used to connect the card to a printer.
The SBC-411/411E includes an onboard parallel port, which is
accessed through a 26-pin flat-cable connector. The CPU card
comes with an adapter cable, which lets you use a traditional DB-25
connector. The cable has a 26-pin connector on one end and a DB-
25 connector on the other, mounted on a retaining bracket.
Installing the retaining bracket
The retaining bracket installs at an empty slot in your system's
chassis. It provides an external port that allows your parallel
peripheral access to the card's parallel port connector.
1. Find an empty slot in your chassis.
2. Unscrew the plate that covers the end of the slot.
3. Screw in the bracket in place of the plate.
4. Next, attach the flat-cable connector to CN3 on the CPU card.
Wire 1 of the cable is red or blue, and the other wires are gray.
Make sure that wire 1 connects to Pin 1 of the CN3 connector.
Pin 1 is on the right side of connector.
Pin assignments
Parallel port connector (CN3)
Pin
Signal
Pin
Signal
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 9
10
-Acknowledge
11
Busy
12
Paper empty
13
+Select
14
-Auto feed
15
-Error
16
-Init printer
17
-Select input
18~25
GND
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