User's Manual

Chapter 24: Table: eKERNEL_AREA
eKERNEL_area parameters
AREA_Site_id_n
This field refers to the site identifier, as defined in the eKERNEL_SITE table. In most cases
only one site is configured. A typical value is 1.
An authorized of an entry typically found in this field is as follows: 1
AREA_Area_id_n
This field indicates the area identifier. The combination site and area must be unique in the
database.
In most cases the configuration consists of 1 site and 1 area. As explained in the
eKERNEL_SITE table, the term site is referred to an environment that is handled by one single
eKERNEL instance.
The concept of area is introduced in DECT Messengerin release 2. Prior to this release, there
were a number of constraints, for authorized there could only be one instance be defined for
several modules. This limitation affected both input programs and output programs.
With the introduction of the area concept, a site can now cover several divisions. These
divisions can be geographically distributed to multiple locations, or they can all be in the same
location.
One advantage of the area concept is that some configuration limitations are no longer active.
For instance, you can now define multiple instances of both input programs and output
programs. For authorized, an immediate result is the ability to support two or more eIO
modules, with the immediate advantage that analogue input and discrete input modules can
now be installed in a distributed location (near the contacts).
DECT Messenger Installation and Commissioning — Book 2 March 2012 263