Slim floppy connector ( fdd1 ) – Intel MINI-ITX BOARD AR-B1890 User Manual
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AR-B1890 User’s Manual
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Slim Floppy Connector ( FDD1 )
Pin Assignment
Pin Assignment
1 VCC
2 INDEX#
3
VCC
4
DRV _ SEL#
5
VCC
6
DSK _ CH#
7
N / C
8
N / C
9
N / C
10
MOTOR#
11
N / C
12
DIR#
13 DENSEL#
14 STEP#
15 GND
16 WDATA#
17 GND
18 WGATE#
19 GND
20 TRACK#
21 GND
22 WPROT#
23 GND
24 RDATA#
25 GND
26 SIDE#
COM1 RS-232 Connector ( COM1 )
Pin Assignment
Pin Assignment
1 DCD1#
2 RXD1
3 TXD1
4 DTR1#
5 GND
6 DSR1#
7 RTS1#
8 CTS1#
9 RI1#
COM2 RS-232/422/485 Connector ( COM2 )
Pin Assignment
Pin Assignment
1 DCD2#(422TXD-/485DATA-) 2 RXD2(422RXD+)
3 TXD2(422TXD+/485DATA+)
4 DTR2#(422RXD-)
5 GND
6 DSR2#
7 RTS2#
8 CTS2#
9 RI2#