EXP Computer CD-420_CD-421_CD-621_CD-821 - Manual (Page 33)

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POWER SAVING
The CD-421 may operate with an AC adapter or batteries. Use of the
supplied AC Adapter will provide the power for use as a portable CD
player, or to extend the computer’s battery life.
The CD-421 drive will automatically enter the sleep mode (spindle off)
when it has not been accessed for about 5 minutes. Also, you can
manually get to the sleep mode by removing the Compact Disc (CD)
from your CD-ROM drive. The operating current will then be reduced to
120 mA.
The “Hot insert/remove” feature of a PCMCIA card helps to save power.
If PCMCIA software that is Exchangeable Card Architecture (ExCA)
compliant has been loaded on to your computer, then you can remove
the CD-421 after the system has been booted, and insert it again when
you need to use the CD-ROM device. For notebook computer users,
removing the card will preserve power and prolong battery life.
Note: It is acceptable to remove and insert the CD-421 from your
computer at any time, however, DO NOT disconnect the PCMCIA card
from your CD-ROM drive.