Spectracom SecureSync User Reference Manual page 365

For IRIG frequency and output specifications, see "IRIG Standards and Specifications" on
page 487.
5.4.2.12 IRIG Output: Status Window
To view the current settings of one of the IRIG Outputs , go to its Status window. For instructions,
see: "Viewing the Configuration of an Input or Output" on page 288.
The Web UI list entries for these cards are: IRIG In/Out BNC and IRIG In/Out Fiber . The con-
nector numbers are: J2 and J3.
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5 SecureSync User Reference Guide Rev. 18
GPS —The raw GPS time as transmitted by the GNSS satellites (as of July, 2015,
this is 17 seconds ahead of UTC time).
A local clock set up through the Time Management Page—This option will appear
under the name of the local clock you have set up. See "Editing the System Time"
on page 169 for more information. Local timescale allows a Local Clock to apply a
time offset for Time Zone and DST correction.
Amplitude : The peak-to-peak output voltage level into a 600 Ω load is adjusted by entering
a digital control value in this field. The level adjustment has no effect on TTL outputs, only
on AM formats. The value of 128 will cause the Mark amplitude to be about 5V
impedance. A value of 200 results in an output amplitude of about 9V
ance.
NOTE – These are nominal values only. Actual values will vary from unit to unit. To
adjust the level precisely, connect an oscilloscope to the output connector when
adjusting.
Offset : Provides the ability to account for IRIG cable delays or other latencies in the IRIG
input. The Offset value is entered and displayed in nanoseconds (ns). The available Offset
range is -500 to +500 ms.
NOTE – SecureSync starts numbering I/O ports with 0 (only 1PPS and 10 MHz out-
puts start at 1, because of the built-in outputs).
5.4 Time Code Option Cards
into high
p-p
into high imped-
p-p
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