Spectracom SecureSync User Reference Manual page 420

5.5 Network Interface Option Cards
NOTE – If you have only one input or output of any type, SecureSync will number
that input or output 0. Additional inputs or outputs will be numbered 1 or above.
2.
The PTP Edit window will display. It offers access to four different tabs , described below:
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5 SecureSync User Reference Guide Rev. 18