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These requirements apply to both the AXRF RF Subsystem and the AutoCal Unit, unless otherwise
specified.
AXRF RF Subsystem cooling
Set the fan speed to HIGH for optimal cooling.
18-slot chassis
When mounting the 18-slot chassis (Option 03) in a rack or on a bench, allow at least 1U
(44.5 mm/1.75 in) clearance above the primary exhaust outlet on the top of the chassis. Keep other
objects or equipment a minimum of 76.2 mm (3 in) away from the primary inlet apertures at the rear
of the chassis. Provide 44.5 mm/1.75 in clearance at the sides of the chassis.
Connecting to supply
AXRF RF Subsystem
The AXRF RF Subsystem is a Safety Class I product and therefore must be earthed. Use the supplied
power cord or an appropriate replacement. Make sure that the equipment is plugged into an outlet
socket with a protective earth contact.
Ensure that the AC supply is correctly connected to the line power receptacle. For line power in the
range 100 to 240 VAC, 50 to 60 Hz (18-slot PXI chassis, Option 03), the PSU automatically selects
the appropriate range.
No manual selection of the voltage-range is provided.
AutoCal Unit
The AC to +48 VDC external power adapter supplied with the AXRF-ACAL8 AutoCal Unit is a
Safety Class II product and therefore does not require a protective earth contact.
Ensure that the AC supply is correctly connected to the power adapter. For line power in the range
100 to 240 VAC, 50 to 60 Hz, the external power adapter automatically selects the appropriate
range.
No manual selection of the voltage-range is provided.
Disconnecting device
The detachable power cord is the equipment's disconnecting device, but if the equipment is
permanently integrated into a rack or system, an external power switch or circuit breaker is required.
Whatever the disconnecting device, make sure that you can reach it easily and that it is accessible at
all times.
Use only an approved power cord that does not exceed three meters.
Installation requirements
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