6.0 Electrical Interface Specifications
6.1 Cabling
The maximum cable length from the host system to the drive plus circuit pattern length in the host system
shall not exceed 18 inches.
6.2 Interface Connector
The signal connector for AT Attachment is designed to mate with Dupont part number 69764-044 or equiv-
alent.
Figure 21 and Figure 19 show the connector location and physical pin location.
Figure 21. AT Attachment connector of DBCA-2xxxxx
Note 1 :
Pin position 20 is left blank for correct connector insertion.
Note 2 :
Pin position A,B,C,D are used for drive address setting. (Refer to Figure 36 on page 50 for
address setting.)
Copyright IBM Corp. 1998
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