Microsemi ATS-6501 T-Flex - reference

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DOC 6501_Release V

ATS-6501 Users Guide

183

present

[OK] 2013-09-04T17:27:18Z

6501A_60>status reference:frequency:external:locked

true

[OK] 2013-09-04T17:27:18Z

reference Type:

Description: Select type of frequency reference. If an external frequency reference (e.g.,

cesium, MASER) is available that is more stable than the internal reference then the timing

performance can be enhanced by utilizing the external source as the frequency reference for

the system. In order to fully realize the performance benefit the system must be told what

type of reference is being provided to it.

The system supports both monitored and unmonitored use of an external frequency

reference. If the external source is to be monitored by the system then the reference type

(given by settings reference:external:type) specified will be a model number such as

'hp5071a'. This enables the system to know how to communicate with the device and

allows it to query status information from the reference and monitor it for any reported

failures. In instances where monitoring is either not available or not desired then the

reference type specified will be a generic class of oscillator such as 'cesium' or 'maser'. This

enables the system to utilize the external frequency reference but does not perform any sort

of remote monitoring of the reference. Thus, failures of the external reference will not

trigger an alarm on the system unless the failure is catastrophic enough to trigger another

failure mechanism within the system.

Microsemi ATS-6501 T-Flex - reference_type Command