Nevion ADP-3GHD - Manual (Page 11)

ADP-3GHD Rev. A
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6 Redundant ring setup
Signal integrity
& Reclocker
Reclocker Switch
Change
Over
Signal integrity
& Reclocker
Reclocker
IN1
ADD
IN2
OUT1
DROP1
OUT2
DROP2
Switch
PASS/ADD
PASS/ADD
DROP/MUTE
Figure 9 - Redundant block diagram
When the card is set up for a single ring with redundancy, the basic functionality is as
follows:
Table 4 – Redundant ring modes
Mode DROP1 DROP2 OUT1 OUT2
ADD Muted Muted ADD1 ADD1
ADD+DROP Best of IN1 and IN2 Best of IN1 and IN2 ADD1 ADD1
PASS Muted Muted IN1 IN2
PASS+DROP Best of IN1 and IN2 Best of IN1 and IN2 IN1 IN2