Specifications

EPC-7 Hardware Reference
12
3
4
56
The female DB-25 LPT1 printer and
parallel port on the front panel is defined
in the following table.
66
Pin Signal Pin Signal
1 Strobe 14 Auto line feed
2 DB0 15 Error
3 DB1 16 Initialize printer
4 DB2 17 Select in
5 DB3 18 Signal ground
6 DB4 19 Signal ground
7 DB5 20 Signal ground
8 DB6 21 Signal ground
9 DB7 22 Signal ground
10 Acknowledge 23 Signal ground
11 Busy 24 Signal ground
12 Paper end 25 Signal ground
13 Select
Table 8. DB-25 LPT1 Pin-out.
The keyboard connector is an IBM PS/2 style connector. It is not
compatible with the older larger 5-pin keyboard connectors, but an
adapter cable is provided. The connector pins are defined in the
table below.
Pin Signal Pin Signal
1 Data 4 +5V
2 unconnected 5 Clock
3 Ground 6 unconnected
Table 9. Keyboard Connector Pin-out.
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