Quantum 4000 Installation And Operation Manual page 62

Table 6-1
Your system does not
recognize the
4000/7000DLT Series unit
(Continued)
The 4000/7000DLT Series
unit does not power up
6-4 Troubleshooting and Diagnostic
Problem Chart
The SCSI bus may not be
correctly terminated
The SCSI terminator may
not be at the end of the
bus, or more than two
terminators may be
present
The SCSI bus might be
too long.
Too many devices might
be on the bus
The 4000/7000DLT Series
unit has no power
If the 4000/7000DLT Series
unit is the last or only
device on the bus, make
sure the terminator is
installed on the
4000/7000DLT.
If the 4000/7000DLT Series
unit is not the last or only
device on the bus, check
the cable connections and
make sure the terminator is
installed at the end of the
bus.
Be sure to install a
terminator at each end of
the bus. One terminator is
usually installed at the host
system.
Limit the bus length to the
ANSI SCSI-2 standard of 6
meters (19 feet) for single
ended buses [3 meters for
the 7000DLT].
Limit the number of
devices on the bus
(including the host system)
to eight.
Check your system
configuration rules.
Check the 4000/7000 Series
unit power cord
connections with the 4000/
7000DLT Series unit power
switch OFF.
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