Adtec digital DTA-3050 (version 6.02.14) Manual - Manual (Page 67)

Operations
When the primary mux is powered up and operational, all output is from the primary. In the event the primary fails or power is
removed, the secondary will be switched in de-energizing a relay inside the primary. When the relay is de-energized, all traffic
from the secondary will be routed from the ASI In 1 to the ASI 1 (output) and ASI In 2 will be routed in the a similar fashion to
ASI 2 (output).
Redundancy control is accomplished by monitoring critical function in the DTA-3050 and if any fail or power is removed from
the unit, then the unit is taken offline.
Both the primary and secondary Multiplexers are connected via an Ethernet LAN connection. The LAN connection ensures
that both Multiplexers can communicate with one another and configuration information is constantly exchanged between the
units.
Configuration changes should be made to the primary Multiplexer, and these changes will be reflected on the secondary via a
redundancy-configuration application.
Multiplexer Configuration
Redundancy must be configured via the front panel interface and is not support via the Web interface at this time. A
redundant configuration requires that when one Multiplexer experiences a configuration change, the redundant partner must
be changed accordingly. Therefore, the primary and secondary Multiplexer must periodically exchange configuration
information to ensure that both units are configured identically.
The user must configure each Multiplexer’s role as follows:
Primary
Redundancy relay must be energized to become online primary. 1.
Secondary’s IP address must be configured. 2.
Primary should send configuration updates to the secondary. 3.
When online, events and IP logging should be performed. 4.
Secondary
Redundancy relay should always be energized during operation 1.
Primary’s IP address should automatically be displayed when the primary contacts the secondary 2.
Secondary should receive and verify configuration updates 3.
When online, events and IP logging should be performed 4.
Standalone (Default Configuration)
Redundancy relay should always be energized during operation. 1.
User Interface 58