Siemens Mobile 750 Operating Manual page 97

Port assignment
Pinouts for connecting an external floppy disk drive
Pos. Signal name
1 +5V
2 INDEX#
3 TRK0#
4 WP#
5 RDATA#
6 DSKCHG#
7 MSEN0
8 DRATE0
9 MSEN1
10 DR1#
11 MTR1#
12
WDATA#
13
WGATE#
14
DENSEL
15 HEAD
16 DIR#
17 STEP#
18-22 Ground
23 +5V
24 PNF
25 Ground
# = Signal is "low" active
A26391-K84-Z100-1-7619
Meaning
Output (Supply voltage)
Input
Input
Input
Input
Input
Input
Output
Input
Output
Output
Output
Output
Output
Output
Output
Output
-
Output (Supply voltage)
Input
-
Technical data
97