1-36 Technical Information
CD-ROM READER
Some systems come with a 24X or (as available) 32X CD-ROM reader. The reader features
up to 24-or 32-speed technology, allowing faster data transfer and smoother animation and
video. The CD-ROM reader comes with an Enhanced IDE (EIDE) interface. The reader is
fully compatible with Kodak Multisession Photo CDs™, CD-I, FMV, and CD Plus, as well
as standard CDs. If the system has sound (either on the system board or with the addition of
an expansion board) and speakers, the CD-ROM reader can also play audio CDs.
A three-connector device cable connects the reader to the secondary IDE/PCI port on the
system board. The reader is connected as the master device on the secondary port. An
optional second device can be added to the secondary channel using the free connector on
the three-connector cable.
Specifications for the available CD-ROM readers are given in Table 1-33 through
Table 1-35. CD-ROM jumper settings are included in Appendix B. Section 5 in this manual
lists the NECCSD part numbers for the CD-ROM readers.
POWER SUPPLY
The power supply is mounted inside the system unit. It supplies power to the system board,
option boards, diskette drives, hard disks, CD-ROM reader, keyboard, mouse, and other
internal options. A fan inside the power supply provides system ventilation. The power
supply provides 260 watts, and is ATX-compatible. Power supply specifications are given in
Table 1-31. Connector locations are given in Appendix A.
KEYBOARD
The PS/2-compatible ergodynamic keyboard is standard equipment for the system. The
keyboard provides a numeric keypad, separate cursor control keys, 12 function keys, and is
capable of up to 48 functions. Key status lamps on the keyboard include Num (Numeric)
Lock, Caps (Capital) Lock, and Scroll Lock. The keyboard’s six-pin connector plugs into
the rear of the system. Keyboard specifications are given in Table 1-20.
MOUSE
A Logitech Mouseman
three-button mouse is standard equipment for the system. This
PS/2-compatible mouse has left, middle, and right buttons (see the following figure). The
mouse has a self-cleaning mechanism that prevents a buildup of dust or lint around the
mouse ball and tracking mechanism. The six-pin mouse cable connector plugs into the rear
of the system. Mouse specifications are given in Table 1-21.