Voltage Tolerance - Seagate Medalist SL Product Manual

Medalist SL Family Product Manual, June 1996
• Read/write. Read/write power and current are measured with the
heads on track. The test cycle consists of writing 16 sectors followed
by a 22.2 msec delay and reading 16 sectors followed by a 22.2 msec
delay.
1.7.1.2 Idle mode
The motor is up to speed, the servo electronics are inactive and the
heads are in the landing zone. A time delay is encountered when
executing a command that requires disc access.
The drive enters Idle mode when the host issues an Idle command, Idle
Immediate command or Idle and Set Idle Timer command. The Idle timer
is a Seagate-unique feature and is disabled by the factory. It is discussed
in Section 3.2.3 on page 33.
1.7.1.3 Standby mode
Standby mode is entered from the Idle mode. The drive is fully opera-
tional through the interface and accepts commands, but a latency occurs
if any command received requires disc access or actuator movement. In
Standby mode, the spindle is stopped, the heads are parked in the
landing zone, the actuator is latched and some of the drive electronics
are powered down.
1.7.1.4 Sleep mode
The spindle is stopped, the heads are parked in the landing zone, the
actuator is latched, and the interface and some of the drive electronics
are powered down. The drive exits sleep mode when the computer
issues a hard or soft reset. The drive returns to Standby mode when the
computer issues a soft reset.

1.7.2 Voltage tolerance

Voltage tolerance
(including noise)
+5V +12V
± 5% ± 5%
11