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Microsemi SyncServer S300 - REFERENCES - Modem

Microsemi SyncServer S300
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Or, using metric units, a 15.24 meter length of RG-59 cable x 4.06 nS/meter = 62 nS of
Cable Delay.
Output Type: Set the time scale used for the Timecode Output.
n
UTC: Coordinated Universal Time. This is the factory default setting.
n
Local: The local time, as configured on the TIMING - Time Zone page.
Note: The timecode output can also be affected by the Ignore UTC Corrections from GPS
Reference setting on the TIMING - HW Clock page. Also see TIMING - HW Clock (on page
61). Note that the SyncServer model 350i does not have a GPS receiver.
References
Please consult the Range Commander's Council document 200-04 - IRIG Serial Time Code
Formats (TTG) on the product information CD and at https://ws-
mrc2vger.wsmr.army.mil/rcc/manuals/200-04/TT-45.pdf for definitions of the following time-
codes:
n IRIG A
n IRIG B
n IRIG E
n IRIG G
n NASA 36
n XR3/2137
Timecode glossary:
n
AM: Amplitude Modulated
n
B 1344: Standard IRIG-B with information encoded in the control bits per the IEEE 1344
standard. These include year, daylight saving time, Leap Indicator, time quality, and par-
ity information.
n
BCD: Binary Coded Decimal encoding of hours, minutes, seconds, and days of year
(hh:mm:ss:ddd)
n
CF: Control Function (elements - various uses depending on the implementation)
n
DC: TTL Levels
n
DCLS: Direct Current Level Shift (width coded)
n
Hz: Hertz
n
kHz: Kilohertz
n
Legacy TrueTime: Standard IRIG-B with four time-quality bits and a lock indicator encoded
in the control bits
n
SBS: Straight Binary Second encoding of seconds in the day
n
YR: Year
REFERENCES - Modem
note: The SyncServer S350i does not include a modem.
Use the REFERENCES - Modem page to create an NTP server association for the modem on
the NTP - Config page. The modem association operates as a backup reference, getting the
time from an automated dial-up time service if more accurate NTP associations aren't
Page 72..........................................................................997-01520-02 Rev. F1

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