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3
/
or 5
/
-Inch Drive Modules
1
1
2
4
-
The SCSI peripheral expansion enclosure contains up to four half-
height storage devices. Two bays accommodate 3
only. The other two bays accommodate either 3
devices.
The suggested procedure for removal and replacement of 3
5
/
-inch drive modules is as follows:
1
4
Removal
1. Switch the power supply of the host system to
2. Disconnect the input power source from the XR900 chassis:
– If the power supply is an AC unit, unplug the power cord
– If the power supply is a DC unit, turn off the –48Vdc
3. Remove the XR900 bezel, if installed.
4. While pressing the latch at the side of the drive carrier (Figure
5-4), move the module back and forth slightly to loosen the
backplane connection. Then carefully remove the module
from the chassis by pulling straight out.
from the AC outlet.
power source and unplug the DC connector from the
power supply input.
3 1/2- or 5 1/4-Inch Drive Modules
/
-inch devices
1
2
/
-inch or 5
1
2
STANDBY
/
-inch
1
4
/
- or
1
2
4
.
4-9
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