Compaq DC7600 HP Compaq dx 7200 and dc7600 Personal Computers, Technical Refer - Page 91

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 5-3 and Table 5-9 for the pinout). Drive power is supplied through a separate connector. ✎ The USDT form factor does not include 34-pin diskette drive connector. The diskette interface and drive power signals are both a part of the MultiBay interface used on USDT form factors. 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 1 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 Figure 5-3. 34-Pin Diskette Drive Connector. Table 5-9. 34-Pin Diskette Drive Connector Pinout Pin Signal Description Pin Signal Description 1 GND Ground 18 DIR- Drive head direction control 2 LOW 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 6 DRV 4 SEL- Drive 4 select 23 GND Ground 7 GND 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 SEL- Drive 2 select 29 GND Ground 13 GND Ground 30 RD DATA- Data and clock read off disk 14 DRV 1 SEL- Drive 1 select 31 GND Ground 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 Technical Reference Guide www.hp.com 5-11