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DWZZH 16–Bit UltraSCSI Hub (Rack-Mountable)
3–6 EK–SMDZS–UG. B01
Figure 3-4 DWZZH-09 Front Panel
Busy
Power
Fair Disable
Busy
Power
SHR-1107
Fair Disable
3.3.1 Fair ARB Disable
The large Hub contains a switch on the front panel that allows the user to disable
the
Fair ARB
feature of the Hub. When
Fair ARB
is disabled, the Hub services
SCSI arbitration cycles in the conventional SCSI priority order. Host port SCSI
ID assignments are not linked to the physical port location in the Hub when
Fair
ARB
is disabled.
3.3.2 Indicators
The large Hub has two indicators on the front panel. The green LED indicates
that POWER is applied to the Hub, while the yellow LED indicates that the SCSI
bus is BUSY.