(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.
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.
Figure 2.11 Power On/Off Sequence (3)
Fujitsu America, Inc.
FS810125-01 . . . A