Applications, Applications 8 – Ensemble Designs 7465 Sync Changeover Switch User Manual
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7465 Sync Changeover Switch and 9465 3G Sync Changeover Switch
Applications
As shown in the application on the next page, different sync reference sources from Avenue or third-
party sync pulse generators can be fed to the three channels on the 7465 or 9465 module. Each
channel output can then be sent to a distribution amplifier to distribute the various sync signals
throughout the facility. It is important that any unused inputs to distribution amplifiers or other
destinations be properly terminated to maintain signal integrity.
Up to four 7465 or 9465 modules can be ganged together to take full advantage of protection for up
to twelve signals. For gang operation, one of the 7465 or 9465 modules is configured as the Master
and the other 7465 or 9465 modules (up to three) are configured as Slaves.
As shown in the illustration below, the Master module makes all decisions about switching based on
signal status from its inputs and those from the Slave module(s). Channel A, B and C status signals
from the Slave module(s) are reported back to the Master module on status indicators labeled Slave
Status in the Gang menu.
The ganged 7465 or 9465 modules may reside in the same frame or in different frames but must be
on the same AveNet network. The Master and Slave configurations are defined in the Gang remote
control menu for each module. Each module is then identified to the other by its AveNet frame
address and its slot location in that frame so the modules can communicate through the control
system.
Relay circuits accessible from the 15-pin D Control connector on the rear backplane (not shown) can
also be connected to alarms for monitoring Primary and Secondary status and switch position.
7465
Master
7465
Slave
Signal Status
Switch Command
Configure In Gang Menu:
AveNet Address 1–1000
Slot Number of Slave Module 1–10
Configure In Gang Menu:
AveNet Address 1–1000
Slot Number of Master Module 1–10
Master – Slave Relationship Between 7465 Ganged Modules