Power Supply Requirements; Figure 3.8 Mcm3130Ss Current Waveform (+5 Vdc) - Fujitsu MCM3064SS Product Manual

Installation Requirements

3.3 Power Supply Requirements

(1) Allowable input voltage and current
The DC power supply input voltage must satisfy the requirements described in
Section 2.1.3, "Environmental and power requirements" when measured at the
power supply connector pin (receiving end) of the optical disk drive (For other
requirements, see items (4) and (5) below).
(2) Current waveform (reference)
Figure 3.8 shows the current waveform while a disk is inserted.

Figure 3.8 MCM3130SS current waveform (+5 VDC)

(3) Power on/off sequence
a) In a system which uses the terminating resistor power supply signal
(TERMPWR) of the SCSI bus, the requirements for +5 VDC given in Figure
3.9 must be satisfied between the drive and at least one of the SCSI devices
supplying power to that signal.
3-14
The optical disk drive can be mounted in a 120 mm (5 inch) device
bay of the PC chassis using either a metal frame or a plastic
(nonconductive material) frame.
If a plastic frame is used, the personal computer's FG and the optical
disk drive's FG are not shorted. Consequently, the static electricity
tolerance is inferior to that realized when a metal frame is used.
Fujitsu recommends using a metal frame. In particular, a metal
frame must be used especially when high static electricity tolerance
is required.
C156-E228-02EN