120 20195-100 Preliminary
Paragon4 – UHF, 700, & 800MHz User Manual
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2x Ethernet LEDs (status & activity)
•
USB port – reserved.
The
option for 10 MHz Disciplined Clock
of the Paragon 4 requires a GPS antenna kit assembly
and a board that is to be used as a piggyback on the BSC2 motherboard. The 10 MHz Disciplined
Clock board is equipped with a GPS module (Garmin GPS15L-F) and a 10MHz TCVCXO (tem-
perature controlled voltage controlled crystal oscillator). The 10Mhz oscillator is disciplined (or
locked to) by the 1 PPS output of the GPS module.
In Lock mode (when synchronized to GPS 1pps signal), the BSC provides a reference signal of
10MHz that has the accuracy better than 1ppb (± 0.010 Hz at 10 MHz).
If the GPS reference is not available, in “unlock” mode the accuracy is only better than 5ppm
(±50 Hz at 10 MHz). Anyway, if an external reference of 10MHz is provided, this reference signal is
buffered for the other modules of the Paragon 4 base station.
The BSC will not supply the 10MHz reference without the option.
3.1.4 Speaker panel
The speaker panel is fitted with a 4
Ω
speaker.
Figure 8 - Speaker module
Speaker
Panel
