Nevion FRS-3G-DUAL - Manual (Page 17)

FRS-3G-DUAL Rev. B
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3.2.2 Configuration page
The configuration page is shown over the next two pages. The different configuration
parameters are explained in detail in the following sub-chapters. The order in which the
settings are presented follows the order in the graphical user interface. Since there are two
independent - but identical - sets of controls (for the two independent frame synchronizers),
only the first set will be covered.
Figure 5 Multicon Gyda configuration page
3.2.3 Input selection
Figure 6: Multicon GYDA view of generator selected as fallback for electrical input
Each half of the FRS-3G-DUAL has one electrical input, in addition to a number of internal
generators that conceptually can be thought of as alternative inputs.
The input is selected by specifying two priorities, referred to as Main and Backup1. The
module will always start by looking at the input selected as Main. This input will be selected
as long as it is present. If the module is not able to lock to this input for Hold time, the
module will go to the next priority, Backup1
, if that exists. If ‘-‘ has been selected as
Backup1, this means that no fallback exists, and the module will stay in Main forever, even
if the Main signal disappears, and the output will be frozen until Main reappears. If the
module is in Backup1 and the Main signal reappears, it will have to be continuously present
for Lock time before the module will again select the Main source.