Hitachi IC25N040ATMR04-0 Specifications - Page 49
Electrical interface specification
UPC - 407061052632
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7.0 Electrical interface specification 7.1 Cabling The maximum cable length from the host system to the hard disk drive plus circuit pattern length in the host system shall not exceed 18 inches. 7.2 Interface connector The signal connector for AT attachment is designed to mate with Dupont part number 69764-044 or equivalent. The figure below and Figure 2: "Mounting hole locations" on page 32 show the connector and pin location. Pin 43 19 1 CA 44 22 2 DB Pin Figure 1: Interface connector pin assignments Pin position 20 is left blank for correct connector insertion. Pin positions A, B, C, and D are used for the drive address setting. (Refer to Figure 3: "Drive address setting" on page 55 for correct address setting.) Travelstar 80GN Hard Disk Drive Specification 39