Appendix a <i/o port pin assignment, A.1 < lpt port, A.2 < crt port – COMMELL HE-772 User Manual
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HE-772 User’s Manual
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Appendix A <I/O Port Pin Assignment>
A.1 < LPT Port >
Connector: CN_LPT
Type: 25-pin header for LPT Port
Pin
Description
Pin
Description
1 -PSTB
2 PRD0
3 PRD1
4 PRD2-
5 PRD3
6 PRD4
7 PRD5
8 PRD6
9 PRD7
10
ACK-
11 BUSY
12 PE
13 SLCT
14 AFD-
15 ERR-
16 INIT-
17 SLIN-
18 Ground
19 Ground
20 Ground
21 Ground
22 Ground
23 Ground
24 Ground
25 Ground
A.2 < CRT Port >
Connector: CRT
Type: 15-pin D-sub female connector on rear panel
Pin
Description
Pin
Description
Pin
Description
1 RED
6 Ground
11 N/C
2 GREEN
7 N/C
12 5VCDA
3 BLUE
8 Ground
13 5HSYNC
4 N/C
9 N/C
14 5VSYNC
5 -CRTATCH 10 -CRTATCH
15 5VCLK
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