22
SBC-400 User's Manual
26
Track 0
28
Write protect
30
Read data
32
Select head
34
Disk change
Parallel port (CN3)
Normally, the parallel port is used to connect the card to a printer.
The SBC-400 includes an on-board parallel port, CN3, 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 to 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 PRINTER
connector. Pin 1 is on the right side of CN3.
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
Содержание SBC-400
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