Chapter 4
Installing the Drive
Page 44
Filepro CFP4207 Series
together. The drives must be of like model to operate. The spindles are
synchronized using a "floating master" concept, where the drives will
synchronize to the first drive to reach full speed. The synchronization tolerance
is 1%.
This signal meets the requirement of negating the signal while the ID is being
read.
- SEL3
Bit 3 of the binary coded SCSI ID selection input. This signal has a value of 0
when it is negated and a value of 8 when it is asserted for the purpose of
selection or arbitration.
This signal is latched within 250 msec of the application of valid power to the
drive or optionally the negation of -RST.
If SCSI ID SEL3 is intended, to be selected, the host must provide a low
impedance connection from - SEL3 to - XTACTV or to ground, while the ID is
being latched, through an appropriate means. Refer to chapter 5 for specific
electrical characteristics of these signals.
- XTACTV
This signal is an open collector output intended to drive an LED to indicate the
device is active. This signal is negated while the SCSI ID is being read.
- GROUND
This signal is connected to the drive's logic ground.
+5 Volts
This signal provides 5 volts of DC power to drive LEDs and is current limited by
a 120 ohm resistor.
- FAULT
The assertion of this signal will cause the drive to stop any media-altering
activity, which may result in the drive asserting -XTFALT or -VUNIQ, or both.
This signal is intended to be used as a power failure warning and/or as a write
protect input. This signal is not supported by this drive.
