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 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
Voltage:
Alarms: GND normally, high impedance when Alarm
b.
Connector: RJ-12
Outputs:
(1) RS-485 Outputs (Data Clocks, CTCSS frequencies,
1PPS)
(2) Alarm
Voltage:
Alarms: 5V pulled up through 10kΩ normally, GND when
Alarm
Note: By factory default, all CTCSS outputs are DISABLED.
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APPENDIX