236 TimeProvider 5000 User’s Guide 098-00028-000 Revision F – May, 2012
Chapter 3
TimeProvider 5000 CLI Command Set
set ref
Use this command to provision the system's reference mode and reference
selection criteria. It allows the user to select the reference mode as timing mode or
frequency mode. In Timing Mode, timing reference will have higher priority than
frequency reference. If all timing references are not available (disabled or
disqualified), the frequency reference will be used to assist timing holdover. The
Timing Reference includes GNSS (GPS/Beidou) inputs and TOD/1PPS inputs. In
Frequency Mode, both timing reference and frequency reference can be used for
frequency lockup. The system will not do phase lockup in frequency mode even if
there is valid timing reference. The frequency references are the E1/T1 inputs.
When switching reference mode, the system selects the new reference based on
REF CRITERIA. When Ref Criteria is set to PRIORITY, the system selects the
reference based on the priority setting of the inputs. When Ref Criteria is set to
SSM, the system selects the reference based on the SSM (received or provisioned)
of the inputs.
Command Syntax:
To set the criteria for how to switch references:
set ref criteria {priority | ssm}
To set the reference to timing mode or frequency mode:
set ref mode {time | frequency}
Note: The reference criteria MANUAL is no longer supported. Only
PRIORITY and SSM are supported for reference selection.
Manual selection of a reference input can be done by disabling all
reference input ports except the desired one.
The “set ref override” command is no longer supported.
Note: Command “set ref mode time” has the same meaning as
“set tod-source GPS” and “set ref mode frequency” has
the same meaning as “set tod-source sys”. See
set
tod-source
command.
Note: Commands to change the reference mode should not be
repeatedly sent to the TP5000, especially before the reference
has been qualified.
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