IBM IC25N020ATDA04 Hard Drive Specifications - Page 6

6.4.6 Load/unload 32 6.5 Mechanical specifications 34 6.5.1 Physical dimensions and weight 34 6.5.2 Mounting hole locations 34 6.5.3 Connector and jumper description 35 6.5.4 Mounting orientation 35 6.5.5 Load/unload mechanism 36 6.6 Vibration and shock 37 6.6.1 Operating vibration 37 6.6.2 Nonoperating vibration 38 6.6.3 Operating shock 38 6.6.4 Nonoperating shock 39 6.7 Acoustics 40 6.7.1 Sound power level 40 6.7.2 Discrete tone penalty 41 6.8 Identification labels 42 6.9 Electromagnetic compatibility 42 6.9.1 CE Mark 42 6.9.2 C-Tick Mark 42 6.10 Safety 43 6.10.1 UL and CSA approval 43 6.10.2 IEC compliance 43 6.10.3 German Safety Mark 43 6.10.4 Flammability 43 6.10.5 Secondary circuit protection 43 6.11 Packaging 43 7.0 Electrical interface specifications 45 7.1 Cabling 45 7.2 Interface connector 45 7.3 Signal definitions 46 7.4 Signal descriptions 48 7.5 Interface logic signal levels 51 7.6 Reset timings 51 7.7 PIO timings 52 7.8 Multiword DMA timings 53 7.9 Ultra DMA timings 54 7.9.1 Initiating Read DMA 54 7.9.2 Host Pausing Read DMA 55 7.9.3 Host Terminating Read DMA 56 7.9.4 Device Terminating Read DMA 57 7.9.5 Initiating Write DMA 58 7.9.6 Device Pausing Write DMA 59 7.9.7 Device Terminating Write DMA 60 7.9.8 Host Terminating Write DMA 61 7.10 Drive address setting 62 7.11 Drive default address setting 62 7.12 Addressing of HDD registers 63 Part 2. Interface specification 65 8.0 General 67 8.1 Introduction 67 8.2 Terminology 67 Travelstar 48GH, 30GN & 15GN hard disk drive specifications iv