Acrosser AR-B1690 - Manual (Page 12)

AR-B1690 User’s Guide
12
2.2.4 FDD Port Connector (FDD1)
The AR-B1690 provides a 34-pin header type connector for supporting up to two floppy disk drives. To enable or
disable the floppy disk controller, please use the BIOS Setup program.
1 33
2 34
Pin Signal Pin Signal
1-33(odd) GROUND 18 -DIRECTION
2 DRVEN 0 20 -STEP OUTPUT PULSE
4 NOT USED 22 -WRITE DATA
6 DRVEN 1 24 -WRITE ENABLE
8 -INDEX 26 -TRACK 0
10 -MOTOR ENABLE 0 28 -WRITE PROTECT
12 -DRIVE SELECT 1 30 -READ DATA
14 -DRIVE SELECT 0 32 -SIDE 1 SELECT
16 -MOTOR ENABLE 1 34 DISK CHANGE
2.2.5 Parallel Port Connector (LPT1)
The connector for the parallel port is a 25-pin D-type female connector.
D-type Connector
DB-25 Signal DB-25 Signal
1 -Strobe 14 -Auto Form Feed
2 Data 0 15 -Error
3 Data 1 16 -Initialize
4 Data 2 17 -Printer Select In
5 Data 3 18 Ground
6 Data 4 19 Ground
7 Data 5 20 Ground
8 Data 6 21 Ground
9 Data 7 22 Ground
10 -Acknowledge 23 Ground
11 Busy 24 Ground
12 Paper 25 Ground
13 Printer Select -- No Used