Managing References; Input Reference Priorities - Safran SecureSync 2400 User Manual

Hide thumbs Also See for SecureSync 2400:

Table of Contents

3.3 Managing References

Managing References

SecureSync can be synchronized to different time and frequency sources that

are referred to as

References can be a GNSS receiver, or other sources delivered into your

SecureSync unit via dedicated (mostly optional) inputs. It is also possible to enter

a system time manually, which SecureSync then can synchronize to.

In order for SecureSync to declare synchronization, it needs both a valid 1PPS,

and Time reference.

The concept of Reference Priority allows the ranking of multiple references for

redundancy. This allows SecureSync to gracefully fall back upon a lower ranking

1PPS or Time reference without transitioning into Holdover, in case a reference

becomes unavailable or invalid. The priority order you assign to your available ref-

erences typically is a function of their accuracy and reliability.

Each available type of Time and 1PPS input reference is assigned a human-read-

able name or "title" that is used in the Reference Priority table, indicating the

type of reference. The reference titles are listed in the following table:

References, or just References.

The References shown on your screen may look different from

the illustration below, depending on your SecureSync 2400 Time and

Frequency Synchronization System model and hardware con-

SecureSync 2400 User Manual Rev. 5.2