
Digibell Vandal Resistant System
PD-169 Issue 3B Installation Guide Page 29 of 56
to each Isolator. This offset enables any start address (i.e. the address of the first flat) to be
set between 1 and 3200.
The offset address is set using dipswitch SW7:
Example
[q2e4t6ui]
^ ^ ^
+2 +100 +400
Total offset = +502
1 +1
2 +2
3 +50
4 +100
5 +200
6 +400
7 +800
8 +1600
Simply add the Total offset value of SW7 switches to the addresses selected by SW6 (See
the table on page 28).
Example: First Floor 101-108, Second Floor 202-209:
(DBA-4I)
Range
Position
1 101-104
Choose 1-4 then add offset of +100
2 105-108
Choose 5-8 then add offset of +100
3 202-205
Choose 1-4 then add offset of +201
4 206-209
Choose 5-8 then add offset of +201
Unused phone connections - Important
It may be desirable to use less than 4 connections on a given isolator for convenience of
cable or building layout. E.g. if there are 3 flats on each floor: use one isolator per floor.
However it is important that in any numbering scheme there are no duplicate flat addresses
or the corresponding phones may not operate correctly. All unused outputs should
therefore be disabled.
Unused outputs must have a wire link placed between O and T on
their terminal block.
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