FUJITSU MCM3064AP - Manual (Page 90)

Host Interface
4-20 C156-E227-01EN
4.4.7.5 Standby mode
In standby mode, the spindle motor stops. The ODD can receive a command from
the host, but since the spindle motor stops, the recovery to access media takes 5 s
(standard).
The ODD automatically enters standby mode from active mode if no command is
issued within a specified time when the standby timer is enabled. When it receives
a command, the ODD automatically returns active mode. The Standby Immediate
command can also directly shift the ODD from active or idle mode to standby
mode.
4.4.7.6 Sleep mode
Sleep mode minimizes power consumption. To set the ODD in sleep mode, the
host must issue the Sleep command. To restore the ODD from sleep mode,
hardware reset or software reset is required. The host must not issue any
command after the Sleep command. The ODD requires 15 s (standard) to respond.
4.4.7.7 Standby timer
The standby timer is used to count the time during which the host issues no
command.
The standby timer value is programmable with the MODE SELECT command.
The default value is 32 minutes (including the transition time to idle mode).