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10 Part A: Introduction © Tait Electronics Limited December 2007In a standard base station, Task Manager can process up to 20 tasks. In a basestation with an Advanced Profiles and Task Manager license, Task Manager canprocess up to 200 tasks.Tasks and CommentsTask Manager acts only on the basis of the tasks in its task list. A task is ratherlike computer code and takes the form:IF < input> THEN When the IF part of the task becomes true, the THEN part is executed. Thereare also IF NOT tasks: when the input of such a task becomes false, the THENpart is executed. You can add comments describing the purpose of a task orgroup of tasks. Comments have no effect on Task Manager processing.InputsTask Manager inputs are of two main types, ‘basic’ and ‘override.’ Tasks areprocessed differently, depending on the kind of input they have. You need tounderstand these differences if you are creating complex sets of tasks.Basic inputs Basic inputs come from various parts of the base station. They include all alarms.While basic inputs can become true at any time, Task Manager will only processthem in the course of the regular 10 ms processing cycle. For example, if aninput becomes true in the middle of a processing cycle, Task Manager won’tprocess tasks with that input until the next processing cycle. This is because itonly learns of the change after the completion of the first cycle.Override inputs Override inputs can only become true through a Task Manager override action.They are internal to Task Manager. Most become true automatically each timethe base station enters Run mode.There are some other inputs that don’t quite behave like basic or overrideinputs. Look under the input for more information.ActionsTask Manager actions are of two main types, ‘override’ and ‘do now’. Theseactions have different effects.Override actions Override actions enable, disable, or toggle a configured base station function.As most of these functions are enabled by default, the main use of overrideactions is to let you turn off a function such as talk through repeater, powersaving, or even the receiver as a whole. The action changes the state of a flag,which can only be changed by another override action. The status of each flagthat is controlled by an override action is displayed in Monitor > Base Station> System Flags.This flag can also be an override input. When an override action is carried out(for example Enable power saving), the equivalent override input (forexample Power saving enabled) becomes true and any tasks with that inputwill be processed.
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