Ericsson RBS 2106 Reference Manual page 343

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Configuration
The process of setting the desired configuration parameters for an AO.
For most AOs and most configuration parameters this process must be
performed while the AO is disabled. However there are a number of
exceptions, certain parameters on certain AOs may be configured by the
BSC while the AO is enabled.
When a configuration request is received over the A-bis, this function
checks that all preconditions for a change in configuration are satisfied:
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The BSC is informed of the successful configuration of the AO or, if
unsuccessful, an indication of why the configuration failed is returned.
Enable
Enable attempts to activate an AO with the current configuration
parameters.
When an enable request is received via A-bis, this function checks that
all preconditions for a change to enabled state are satisfied:
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If the checks are all successful, the function of the appropriate AO is
enabled.
The BSC is informed of the successful enable of the AO or, if
unsuccessful, an indication of why the enable was unsuccessful is
returned.
Disable
Disable deactivates an AO.
When a disable request is received over the A-bis, this function only
needs to check that all preconditions for a change to disabled state are
satisfied.
If the check is successful, the function of the appropriate AO is
disabled. The AO IS and AO CON are exceptions to this, they retain
their normal functions even when disabled.
EN/LZT 720 0008 P2A
2001-11-28
Configuration
Enable
Disable
All parameters are within the permitted range or have permitted
values
If the AO is enabled, parameters that cannot be changed in
enabled state must not be changed
For certain classes of AO, the configuration parameters must be
consistent with each other
All required configuration parameters must be previously set by
one or more configuration procedures
Configuration parameters must be consistent with each other
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