Appear TV MC3000 - Switch Module Hot-Swap; Decoder Module Hot-Swap; Output Module Hot-Swap; Adding; Replacing;Removing Modules

SW Version 2.04 30-January-2009 Page 104 of 128
6.4.3 Switch Module Hot-swap
All communications between different modules in unit are facilitated by the switch-
module. Removing this module will disable all backplane communication. The effect of
this is 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 changes
back to red/green and the services resume automatically. No configuration of the
switch module is required.
6.4.4 Decoder Module Hot-swap
Decoder modules can be replaced during normal operation only affecting the relevant
modules with minimum disruption of services. The unit will automatically re-configure
the new module with identical values to the module that has been replaced. The
module will therefore automatically start decoding the same service which was
decoded previously.
NOTE:
It is important to insert the new decoder module in the same slot as the
decoder module it is replacing and that the new decoder module has the same
configuration (same options).
6.4.5 Output Module Hot-swap
Output modules can be replaced during normal operation only affecting the services
related to the relevant modules. The unit will automatically re-configure the new
output module with identical values to the board that has been replaced.
6.5 Adding / Replacing /Removing Modules
Before upgrading a unit with additional channels, please check that there is sufficient
space in the chassis to support the additional module(s).
The left-most slot seen from the front (slot 0) can only hold the switch card, while the
right-most slot (slot 17) contains power connectors only designed for multiple slot
modules, i.e. it may not be used for single slot modules.
Before inserting a new module into the chassis, please remove the required front
plates. With a screwdriver open the air vents in the bottom of the chassis as
illustrated in Figure 74. Each air vent is opened by pushing down on the left side (as
seen from the front). Each air vent should be opened 90 degrees. Make sure that the
air vents both in the front and in the back of the unit are open for each module in use.
Please make sure the air vents on both side of a module guide is open. For decoder
modules which are 2 slots wide, air vents in two slots must be opened. For decoder
modules which are 3 slots wide, air vents in three slots must be opened.