Direct Output Value
1PPS
1PPM
5MPPS/1PPS
Square Wave
Custom
Output Value: Determines the output level (Low or High).
Re-Initialize: Re-initializes square wave generation and aligns to 1PPS.
Signature Control: Controls when the output will be present. See also: "Signature
Control" on page141.
Edge: Used to determine if the on-time point of the output is the Rising or Falling
edge of the signal.
Offset: Accounts for cable delays and other latencies [nanoseconds].
On-Time Point Pulse Width: The on-time point pulse width is the pulse width of the
first square wave pulse aligned to the 1PPS On-Time Point. This is only active
when the alignment count is non-zero [nanoseconds].
Pulse Width: Pulse width of the output [nanoseconds].
Alignment Count(s): The alignment counter determines how often (in seconds) the
square wave will be aligned back to the 1PPS. Setting zero will disable PPS
alignment beyond the initial alignment.
Time Alignment: (Enabled/Disabled) The time alignment enable changes the func-
tion of the alignment counter to align the square wave whenever the current time’s
seconds value is a multiple of the alignment count. For example: If time alignment
is enabled and alignment count is set to 15 seconds, the square wave will be
aligned to the 1PPS when the seconds value on the time display equals 00, 15,
30, 45.
Period: Sets the period of the square wave (in ns or µs scale).
The wave’s frequency will display at the top of the window once you have
configured the output. The frequency is calculated based on the Period
and Period Correction settings.
Period Correction: Period correction allows for the generation of more precise fre-
quencies at the expense of additional period jitter. An additional clock cycle is
added for numerator periods every denominator periods. Over a length of time,
SecureSync User Reference Guide 395
APPENDIX
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