GFK-1425B Touch Display Products: IC752CTD400/450 15
Printer Port LPT1 (Parallel Port)
LPT1 Pin Assignments
1 Strobe 10 Acknowledge
2 Data Bit 0 11 Busy
3 Data Bit 1 12 Paper End
4 Data Bit 2 13 Select Out
5 Data Bit 3 14 Auto Feed XT
6 Data Bit 4 15 Error
7 Data Bit 5 16 Initialize Printer
8 Data Bit 6 17 Select In (From Printer)
9 Data Bit 7 18 to 25 Ground
Floppy Disk Drive Interface
The 3.5 inch floppy disk drive interface is factory set to Drive A. Connection is via a 37-pin female
D-type connector mounted on the side of the Touch Display unit.
Disk Drive Interface Pin Assignments
1 to 18 Ground 28 DIR Direction
19 +5 VDC. 29 STEP Step Pulse
20 RWC/RPM RPM Low 30 WD Write Data (to
floppy)
21 No connection 31 WE Write Enable
22 No connection 32 TR0 Track 0
23 IDX Index 33 WRPRT Write Protected
24 MO1 Motor Enable 1 34 RDD Read Data (from
floppy disk)
25 DS0 Drive Select 0 35 HS Head Select
26 DS1 Drive Select 1 36 DCHNG Disk Change
27 MO0 Motor Enable 0 37 Vcc +5 V