42
11.6.2.
Hotel numbering (storey)
In some blocks, the apartment number starts with a prefix indicating the floor number. It is a hotel
number (floor number). PC255 decoders can be addressed up to 255, and therefore, in case of a
block with such numbering, there is a need to apply hotel conversion built into the PBX. Thanks to
this it is possible to limit the range of physical numbers while maintaining large logical numbers.
The algorithm that converts logical
numbers into physical numbers, in case of
floor numbering, is similar to linear
numbering (see section 11.6.1). The
difference consists in adding one degree
calculating the number on the basis of
settings
“
degree of numbering division
”
and
“
number of premises on the first floor
”
(par. 203 and 204). The algorithm is shown
in Figure 13.
Unlike CD1803, the KDC3905 control panel
enables to change the degree of division of
hotel numbering (i.e. how many digits on
the front of number is the floor number).
Please note that the maximum number of
premises on the floor is limited to 99. To
enable hotel numbering, set the numbering
level parameter to a value different from 0.
The numbering level defines how many
youngest digits is the number of premises
on the floor.
Physical number to which the decoder will
be addressed is calculated according to the
formula:
No.
ind.
=
No.
log
±
PreShift
No.
phy.
= (
No.
floor
−
1)
·
NumberOfPremisesOnTheFloor
+
No.
premise
±
PostShift
Where
No.
floor
and
No.
premise
are obtained from an indirect number, according to Table 11. If the
obtained number of the premises is greater than the Number of premises on the floor parameter,
the PBX will signal this on the keyboard, and then the connection will be interrupted.
Numer
Logiczny
Postshift
par. 205
Numer znajduje się
w zakresie <min;max>
numerów fizycznych?
Par. 206;207
Numer fizyczny
Wyjście
Wyjście
Preshift
Par 202
Numer jest w
tablicy przekierowania A2
lub na liście lokatorów?
Numer znajduje się
w zakresie <min;max>
numerów logicznych?
Par. 200;201
Preshift zdalny
(od mastera)
Par. 210
Nie
Tak
Nie
Tak
Nie
Tak
Przeliczenie hotelowe
Par 203;204;205
Figure 13. Dataflow algorithm converting logical numbers into physical numbers
(hotel numbering)