Paragon-X Getting Started Guide
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Front Panel Description
1. Aux ports (RJ45)
2 and 3. 10G Ethernet ports
4.
This connector is not used
5.
Display
6.
In earlier versions this connector is not used and does not supply USB power. In later
versions it supplies USB power to the External 1pps/ToD Frequency Converter accessory.
7.
PC Controller (RJ45)
8 and 9. 1GbE and 100M Ethernet ports
1. Auxiliary ports (RJ45)
Top Front Aux Port: Time of Day 1pps input, single-ended signal with adjustable threshold, pin 1
+ve and pin 2 GND. Input impedance 50Ω. Threshold range 0.5V to 2.5V. Use external
1pps/ToD/Frequency converter accessory to convert from high-impedance single-ended signal or RS-
422 balanced signal.
Lower Front Aux Port (earlier versions): 10MHz Clock Out frequency-locked to whatever reference
the Paragon-X is using (internal or external), pin 1 +ve and pin 2 GND. In Master/Slave Emulation
Mode this is User Selectable between the 10MHz Clock Out and a 1PPS Reference Output locked to
whatever Paragon-X 1PPS reference is in use. The 1PPS output signal is only present when the Master
is enabled and generating packets (all cases except Master Test configuration).
The 1PPS output is locked to whatever Paragon-X 1PPS reference is in use, pin 3 +ve and pin 6 GND.
Both outputs use an in-line or series 50Ω resistor and can drive high impedance inputs as well as 50Ω
inputs.
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