Aaeon PCM-6890 User Manual page 45

Normally, the parallel port is used to connect the board to a
printer. The mainboard includes an onboard parallel port, accessed
through PC1, a 26-pin flat-cable connector. You need an adapter
cable if 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.
The mainbaord supports one parallel port. The port is designated
as LPT1 and can be disabled or changed to LPT2 or LPT3 in the
system BIOS setup.
Parallel port connector (CN14)
Pin Signal
1
/STROBE
3 DO
5 D1
7 D2
9 D3
11 D4
13 D5
15 D6
17 D7
19
\ACK
21 BUST
23 PE
25 SLCT
Pin Signal
2
\AUTOFD
4 ERR
6
\INIT
8
\SLCTINI
10 GND
12 GND
14 GND
16 GND
18 GND
20 GND
22 GND
24 GND
26 N/C
Chapter 2 Installation 33