Hard Disk Drive
|Micropolis 4345SD||4.55 GB||3.5"||1/3HT||Ultra||SCSI3|
|Formatted Capacity||4.55 GB|
|Average Seek||7.9. msec|
|Rotation Speed/Avg. Latency||7200 rpm +/- 0.5%|
|Transfer Rate to / from media||20 Mbytes/sec Synchronous|
|Transfer Rate to / from buffer|
|Tracks Per Inch (TPI)|
|Bits Per Inch (BPI)|
|Dimensions||5.75"D x 4.0"W x 1.0"H|
|+12V +/-5%||+5V +/-5%||Power|
|Read / Write||1.75A||1.1A|
|Typical seeking||12 Watts|
Jumpers at Pin 3-4, 5-6, 7-8, & 9-10 select the SCSI ID.
Each SCSI device on one Host Adapter must have a unique SCSI ID (0-15).
SCSI ID0 is the Default.
Open-collector output - Used to drive a user-supplied LED to indicate the drive is active.
Spindle Control (SP0)
Jumper installed at SP0, jumper omitted at SP1 - The spindle motor starts when
SCSI �START UNIT� command is received. Jumpers omitted at SP0 (Default) and at SP1 - The spindle motor starts at power-on.
Spindle Delay (SP1)
Jumper installed at SP1, jumper omitted at SP0 - Spindle motor start-up is delayed,
based on the SCSI ID (12 seconds per SCSI ID). Jumpers omitted at SP1 (Default) and at SP0 - The spindle motor starts at power-on.
Write Protect (WP)
Jumper installed at WP - The drive is write protected. Jumper omitted at WP (Default) - The drive is not write protected.
BUS Parity Check (PTY)
Jumper installed at PTY - The drive neither generates nor detects parity. Jumper omitted at PTY (Default) - The drive generates parity and has parity detection enabled.
Activity LED Enable (ALE)
Jumper installed at ALE (Default) - Interface ACTIVITY LED OUT signal is enabled. Jumper omitted at ALE - Interface ACTIVITY LED OUT signal is disabled.