Spectracom SecureSync User Reference Manual page 406

5.5 Network Interface Option Cards
2.
The Gb PTP Edit window will display. It includes the top panel , and offers access to three
different tabs , described below:
390
If you have only one input or output of any type, SecureSync will number
NOTE –
that input or output 0. Additional inputs or outputs will be numbered 1 or above.
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5 SecureSync User Reference Guide Rev. 18