rtd cpuModule CMC6686GX, User Manual

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Parallel Port, P3
or CN6
The parallel port is available on connector
P3
or CN6. You can use Setup to select its address, associated
interrupt, and choose between its operational modes (SPP, ECP, EPP 1.7 and EPP 1.9).
The pinout of the connector allows a ribbon cable to directly connect it to a DB25 connector, thus
providing a standard PC compatible port.
The following tables lists the parallel port signals and explains how to connect it to a DB25 connec-
tor to obtain a PC compatible port.
NOTE! For correct operation, keep the length of the cable connecting the cpu-
Module and parallel device less than 3 meters (10 feet).
Parallel Port Connector,
P3
or CN6
Parallel Port Connector, P3 or CN6
Pin Signal Function in/out DB25
1 STB Strobe Data out 1
2 AFD Autofeed out 14
3 PD0 Printer Data 0 (LSB) out 2
4 ERR Printer Error in 15
5 PD1 Parallel Data 1 out 3
6 INIT Initialize printer out 16
7 PD2 Printer Data 2 out 4
8 SLIN Select printer out 17
9 PD3 Printer Data 3 out 5
10 GND Signal ground -- 18
11 PD4 Printer Data 4 out 6
12 GND Signal ground -- 19
13 PD5 Printer Data 5 out 7
14 GND Signal ground -- 20
15 PD6 Printer Data 6 out 8
16 GND Signal ground -- 21
17 PD7 Printer Data 7 (MSB) out 9
18 GND Signal ground -- 22
19 ACK Acknowledge in 10
20 GND Signal ground -- 23