Manufacturer: Seagate Model: ST423451WD TD# 800944
Interface... UltraSCSI Formatted Capacity... 23,400 MB
Cylinders 6880 Heads 28 Sectors Variable
Landing Zone Cyl + 1 Average Latency 5.55ms RWC Cyl N/A
Encoding Method PRML Xfer/Mb 40 MTBF (Hr X 1000) 1000
Form factor 3.5" Novell Y/N Y Height HALF
Power (Typical) 6.74W Power (Max) 11.1W Speed 5400
Avg seek (ms) 13.2/14.2 Cache 2,048k Mfg. Warranty 5 YRS

NOTE: Can also be operated according to SCSI-1, SCSI-2, and SCSI-3 protocols.
Copyright ⌐ 1996, 1997 Tech Data Corporation

Configuration and Jumper Options

If your system is "SCAM" (SCSI Configured Auto Magically) compliant, the system assigns the drive ID over the interface, so there is no need to be concerned about drive ID. Setting the drive ID jumpers doesn’t hurt anything, but is not necessary.
If your system is not "SCAM" compliant you do need to set the drive ID using the ID jumpers. (See Below)

4234WID.GIF (36959 bytes)

Terminating the drive

The ST423451WD drives do not have internal terminators or any other way of adding internal termination to the drive.  You must provide external differential termination to these drives when termination is required.

Terminator power

There are two possible terminator power configurations for the ST423451WD drive. You will not normally need to change this option and can leave the drive configured as it was from the factory.

4234ntp.gif (21137 bytes)

Other applicable jumper options

Several other jumper options are available as illustrated below.

4234noo.gif (31959 bytes)

Active, Ready, and Fault indicators

The Active, Ready, and Fault LED indicator connections are shown below.

4234led.gif (27792 bytes)

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