Fermax MDS Series Technical Book page 18

Technical Book
MDS
MDS
FXL CONFIGURATION SWITCHERS. CENTRAL UNIT NUMBER
The microswitch "7" set to "OFF" (long call) indicates that it will first be necessary to dial the block number
in order to call the telephones (one or two digits) followed by the telephone number (four digits), when the
call is made from the general entrances. If the call is made from the corresponding block entrance only the
digits corresponding to the telephone number are required.
In the "ON" position (short call) it will not be necessary to enter the block number, but only the telephone
number, whether the call is made from the general entrance or from the block entrance.
Long call is necessary in places where the apartment numbers are repeated in two or more blocks, in order
to identify the block, when the call is made from the general entrance. Otherwise, short call is suitable.
The microswitch "8" set to "OFF" indicates that the panels installed in the central unit will be considered as
general entrances to a condominium (it enables calls to telephones controlled by other central units), while
in the "ON" position indicates that it is a central unit installed to manage a specific block.
Note: this treatment is different if we use the multistairs system provided by the MDS Version 3.1 or higher
(see page 25).
In Digital Controller Systems (SW1-3 in the central unit set to OFF) put microswitches 7 & 8 in the FXL card
to OFF to set the DC Extended Mode. It is then possible to link up to 64 central units which allows us to
manage up to 65.408 users). The total of accesses is limited to 31, as they are shared in all the central
units and access 0 is used (PANEL1) for the FXL network.
Examples:
* There is a condominium formed by 3 blocks, with apartments numbered from 101 to 150 in the first block,
from 201 to 250 in the second and from 301 to 350 in the third block.
We can use short call in this case, because there are no repeated apartment numbers. To call apartment
307 (in block 2) we will dial 3-0-7 either from the general entrance or from the block entrance.
* There is a condominium formed by 5 blocks. All of them have the apartments numbered from 1 to 150.
We have to use long call, because there are repeated apartment numbers in the blocks. To call apartment
25 in the 3º block, we will dial 3-0-0-2-5 if the call is made from the general entrance, and 2-5 only if the
call is made from the block entrance.
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