HP Compaq dx7300 and dc7700 Business PC Technical Reference Guide, 1st Edition

5-8 www.hp.com Technical Reference Guide
Input/Output Interfaces
5.3.2 Diskette Drive Connector
The SFF, ST, MT, and CMT form factors use a standard 34-pin connector for diskette drives
(refer to Figure 5-2 and Table 5-6 for the pinout). Drive power is supplied through a separate
connector.
Figure 5-2. 34-Pin Diskette Drive Connector (P10 on system board).
Table 5-6.
34-Pin Diskette Drive Connector Pinout
Pin Signal Description Pin Signal Description
1 GND Ground 18 DIR- Drive head direction control
2LOW DEN-Low density select 19 GND Ground
3 --- (KEY) 20 STEP- Drive head track step cntrl.
4 MEDIA ID- Media identification 21 GND Ground
5 GND Ground 22 WR DATA- Write data
6DRV 4 SEL-Drive 4 select 23 GND Ground
7GND Ground 24 WR ENABLE-Enable for WR DATA-
8 INDEX- Media index is detected 25 GND Ground
9 GND Ground 26 TRK 00- Heads at track 00 indicator
10 MTR 1 ON- Activates drive motor 27 GND Ground
11 GND Ground 28 WR PRTK- Media write protect status
12 DRV 2 SE L- D rive 2 s el ect 29 G ND Grou nd
13 GND Ground 30 RD DATA- Data and clock read off disk
14 D RV 1 S E L- D riv e 1 sel e c t 31 GND G ro u n d
15 GND Ground 32 SIDE SEL- Head select (side 0 or 1)
16 MTR 2 ON- Activates drive motor 33 GND Ground
17 GND Ground 34 DSK CHG- Drive door opened indicator
1
2 4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34