Bitronvideo AN9847/L Manual De Istrucciones página 9

Then cards must be connected in cascade, as shown in the following fi gure.
AN9854/8 AN9854/8
P1 P2 P3 P4 P5 P6 P7 P8 C P1 P2 P3 P4 P5
17 18 19 20 21 22 23 24 9 10 11 12 13 14 15 16
The value of each button (and the tenant's code) depends upon the position of the button towards the
digitizer: the fi rst button (the nearest) has value 1, the second value 2, and so on, in increasing order, as each
card interfaces 8 buttons, it shall have 8 subsequent increasing values for each connected button, for example
the third button of the second card shall have a value (and therefore a tenant's code) of 11, because we have
the value 8 of the fi rst card + the value 3 of the third button of the second card 8+3=11.
Determining the value assigned to each button is very easy: the code represents the position of the board
button towards the digitizer to which it is connected. The only precaution to be taken, if installations with at
least one main entrance and several secondary entrances are implemented, is that the fi rst secondary external
unit will call tenants with a code comprised between 1 and x, whereas the second secondary external unit will
call tenants with a code comprised between x+1 and y. To allow this external unit to operate correctly, we have
foreseen the possibility of assigning an Offset value to the digitizer code. Therefore, the value of each button
is obtained adding the value of its position to the Offset value of digitizer (default zero).
If we take for example an installation including a main entrance (32 buttons) and two secondary boards (stairs
A: 24 buttons – stairs B: 8 buttons), the code of the tenants of stairs A shall be comprised between 1 and 24,
whereas the code of the tenants of stairs B shall be comprised between 25 and 32.
To obtain this, it is suffi cient to let the Offset value of the two fi rst boards at 0 (default value), whereas the
Offset value of the B-stairs board shall be adjusted on 24.
To adjust the Offset of the digitizer it is suffi cient to position the Jumpers of the programming number
according to the table:
Position
1
2
3
4
5
6
7
8
To create any codes, it will be necessary to put in ON position the jumper, whose values sum is the desired
16
AN9854/8
AN9847/L
P6 P7 P8 C P1 P2 P3 P4 P5 P6 P7 P8 C
1 2 3 4 5 6 7 8
Decimal value
1
2
4
8
16
32
64
128
code; not concerned jumpers must stay in OFF position.
Offsett example equivalent to 24:
Because code 24 is the result of 8 + 16, it will be necessary to put corresponding jumpers in ON position, in
order to set the code. The remaining jumpers must stay in OFF position.
PERIPHERALS
To each peripheral, door phone or monitor in the system is associated a call address; this address must be set
with dip switches present in every product.
Two users can have the same code (for example, in order to have two door phones in the same apartment).
To obtain this, it is necessary to set the door phones code for both of them; in this way the door phone will
ring at the same time and both will be able to answer the call.
For peripheral programming, refer to corresponding instructions.
DS90380-007A DS90380-007A
128
64
32
16
8
4
2
1
OFF ON
17