Hardware And Interface; Scsi-2 Compatibility; Handling And Static-Discharge Precautions - Seagate MEDALIST 1080SL Product Manual

Medalist 1080sl SCSI Product Manual, August 1995

2.0 Hardware and interface

The ST51080N drive uses a SCSI-2 interface that consists of a 9-bit
bidirectional bus (8 data bits and 1 parity bit) and 9 control signals. The
interface supports multiple initiators, disconnect and reconnect, self-con-
figuring host software and logical block addressing.
The interface employs a singled-ended driver/receiver configuration that
uses asynchronous or synchronous communication protocols. It sup-
ports asynchronous transfer rates of up to 5 Mbytes per second and
synchronous transfer rates of up to 10.0 Mbytes per second. The bus
protocol supports multiple initiators, disconnect and reconnect, additional
messages and 6-byte and 10-byte command descriptor blocks. The bus
cable can be up to 6 meters long for standard mode and up to 3 meters
long for Fast SCSI mode.

2.1 SCSI-2 compatibility

The drive interface is described in the Seagate SCSI-2 Interface Manual ,
publication number 77738479. The drive complies with the mandatory
subset of the ANSI SCSI-2 Interface. The Fast SCSI-2 interface is based
on the ANSI Small Computer System Interface-2 (SCSI-2), document
number ANSI X3.131-199 x (X3T9.2/86-109 Rev. 10h).

2.2 Handling and static-discharge precautions

The ST51080N drive uses static-sensitive devices. Avoid damaging the
drive and these devices by observing the following standard handling
and static-discharge precautions:
Keep the drive in its static-shielded bag until you are ready to complete
the installation. Do not attach any cables to the drive while it is in its
static-shielded bag.
Before handling the drive, put on a grounded wrist strap, or ground
yourself frequently by touching the metal chassis of a computer that
is plugged into a grounded outlet. Wear a grounded wrist strap
throughout the entire installation procedure.
Wool and synthetic clothes, carpets, plastics and Styrofoam are
contributors to electrostatic build-up. Static discharge can damage
sensitive components in your drive and computer.
Handle the drive by its edges or frame only.
The drive is extremely fragile—handle it with care. Do not press down
on the drive top cover.
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