Scsi Backplane; Table 1-1. Xr900 Enclosure Specifications - Motorola XR900 Series User Manual

Mass storage subsystem
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General Information
1

SCSI Backplane

1-4
Table 1-1. XR900 Enclosure Specifications
Characteristics
Physical characteristics
Height
Width
Depth
Weight (fully loaded)
Temperature
Operating
Storage and transit
Relative humidity
Operating
Storage and transit
Altitude
Operating
Storage and transit
+12Vdc to the enclosure. The power supply module is installed next
to the drive enclosure and is cooled by the air drawn through the
expansion chassis.
The AC or DC input to the power supply is through a power cord
or terminal block connection at the rear of the chassis. The power
supply plugs into the SCSI backplane for power distribution to the
mass storage drives.
The power supply modules are not adjustable when they are
installed in the XR900 enclosure. If you suspect that a power supply
may be out of adjustment, replace it with a known good power
supply.
The XR900 mass storage drives and power supply plug into an SCSI
backplane mounted behind the drive enclosure. The backplane
provides:
Specifications
5.25 in. (133 mm)
19.0 in. (483 mm) w/o flange extensions
23.0 in. (584 mm) with flange extensions
13.5 in. (343 mm) with bezel
25 lb. (11.4 kg)
0˚ to 50˚ C (32˚ to 122˚ F)
40˚C to 70˚C ( 40˚ to 158˚ F)
20% to 80% noncondensing
10% to 95% noncondensing
0 to 10,000 feet (3048 m)
0 to 30,000 feet (9144 m)

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