Contec SPI-8451-LLVA User Manual

Page of 123
3. Hardware Installations 
 
 
 
20 
SPI-8451-LLVA, SPI-8452-LLVA, SPI-8451-LVA 
Floppy Disk Connector: CN3 
The floppy interface can be configured for the following floppy drive capacities and sizes:
 
360 KB, 5.25-inch 
1.2 MB, 5.25-inch 
720 KB, 3.5-inch 
1.44 MB, 3.5-inch 
2.88 MB, 3.5-inch 
This connector supports the provided floppy drive ribbon cable. After connecting the single and to the 
board, connect the two plugs on the other end to the floppy drives. 
Table 3.5. 
Floppy Disk Drive Connector 
Pin No.
1
3
5
7
9
11
13
15
17
19
21
23
25
27
29
31
33
Function
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND
Pin No.
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
Function
RWC
N.C.
N.C.
INDEX
DS0
DS1
DS2
MOT ON
DIR
STEP
WD
WG
TRCK 0
WP
RD
SIDE 1
DSK CHG
33
CN3
1
2
34