Sencore DMG 3000, Руководство пользователя

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DMG 3200/3100/3000 – User Manual
Page 298 (306)
12.2.2 MMI Module Hot-swap
This module manages all the other modules in the unit and stores all configuration information
in a database. Replacing the MMI card will cause all services to stop. Hence
replacement of the MMI board must be performed with care, and a full backup of the
configuration database is recommended.
All communication between different modules in the unit is facilitated by the switch-module;
removing this module will disable all backplane communication resulting in loss of all services
(the color of the status LED on the modules will change to blue).
Once a replacement switch card is inserted into the device the LED will change back to red or
green and services will resume automatically.
Figure 12.1 - A Module with its Ejector released
12.2.3 Other Module Hot-swap
Modules can be replaced during normal operation with minimal disruption of services, affecting
only the relevant modules. The unit will automatically reconfigure the new module with identical
values its predecessor. Therefore, the module will automatically begin descrambling the same
service descrambled previously.
It is important to insert the new module into the same slot as the previous one;
and ensure that their configuration is identical.
12.3 Adding, Replacing, or Removing Modules
Before upgrading a unit with additional modules, ensure that there is sufficient space (slots) in
the chassis.