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 function 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. The current Time Alignment range
is from 0 to 3600 seconds.
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 pre-
cise frequencies at the expense of additional period jitter. Over a length of
time, the true square wave period comes to:
Period + [(numerator/denominator) * 5 ns]
5.2.3.7 Simulcast (CTCSS/Data Clock) [1204-14]
The Simulcast CTCSS/Data Sync/Data Clock Option Card provides CTCSS, data clock,
and alarm outputs through relays for the SecureSync platform through one DB-9 and one
RJ-12 connector. The maximum number of cards installed is six (6).
a.
Connector: DB-9
Outputs:
(3) RS-485 Outputs (Data Clocks, CTCSS frequencies, 1PPS)
(1) Alarm
SecureSync 2400 User Manual 381
APPENDIX
To Next Page
Loading...
Need help?
General
