Chapter 4 Chassis Web User Interface (UI)
Web UI Pages
Rev. D0
mA-1302/mA-1305 AXIe Chassis Operation Manual
May 2020
Page 4-15
Last Configured for Internal Timing Reference
If the Chassis was using it's internal reference as a timing source when the system
was powered down, the Shelf Manager selects the Chassis internal frequency
reference as the Chassis timing source.
Last Configured for External Timing Reference
If the Chassis was using an external frequency reference as a timing source when
the system was powered down, the Shelf Manager will search for a valid external
frequency reference.
If the Shelf Manager detects a valid external frequency reference at the Chassis'
External Reference Input Connector, the Shelf Manager selects the External
Frequency Reference as the Chassis timing source.
If the Shelf Manager does not detect a valid external frequency reference at the
Chassis' External Reference Input Connector, the Shelf Manager selects the internal
frequency reference as the Chassis timing source.
NOTE
In order for an external frequency reference to be valid the signal must be within the
Chassis' lockable frequency range. Refer to the Chassis data sheet for valid frequency
range.
Summary of Contents for mA-1302
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