Download Print this page

Figure 2.10 Power On/Off Sequence; Figure 2.11 Power On/Off Sequence - Fujitsu M2266S Technical Handbook

Hide thumbs

Advertisement

M2266S/H
Technical Handbook
(c) In a system that does not use the terminating resistor power supply
signal (TERMPWR) on the SCSI bus, the requirements for +5 VDC
shown in Figure 2.10 must be satisfied between the IDD and the SCSI
device with the terminating resistor circuit.
SCSI
device with
terminating
resistor circuit
IDD
(+5 VDC)
(+5VDC)
4.OV
4.0 V
4.0
40V
V
T10
T2
0
Figure 2.10 Power On/Off Sequence (2)
(d) Between the IDD and other SCSI devices on the SCSI bus, the +5 VDC
power on/off sequence is as follows:
• In a system with all its SCSI devices designed to prevent noise from
leaking to the SCSI bus when power is turned on or off, the power
sequence does not matter if the requirement in (b) or (c) is satisfied.
• In a system containing an SCSI device that is not designed, to prevent
noise from leaking to the SCSI bus, the requirement given in Figure
2.11 must be satisfied between that SCSI device and the IDD.
SCSI device
without noise
(+5 VDC)
leak prevention
4.75 V
4.75 V
IDD
(+SVDC)
0.5V
05V
T10
T20
Figure 2.11 Power On/Off Sequence (3)
Fujitsu America, Inc.
FS810125-01 . . . A
2-9

Advertisement

loading

This manual is also suitable for:

M2266h