| 摘要 |
A drive regulator circuit board for use with a 3.50 inch disk drive unit. The drive regulator circuit board includes a regulator section for receiving +24 volts distributed power and providing therefrom regulated +5V and +12V DC power, a monitor circuit for monitoring the +5V DC and +12V DC so generated, a SCSI bus reset pulser circuit for generating a SCSI bus reset pulse upon insertion or removal of the drive module, PALS for comparing the local address with an incoming address, control and for turning the DC voltages on or off in response to certain prearranged commands as well as providing SCSI bus activity indication, and a bus for providing SCSI ID information to said 3.50 inch disk drive unit.
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