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4.8 TV INTERFACE ART. 1257
Art. 1257 serves to extract an analougue video output from the system.
4.8.2 Functions
The module is capable of operating in different modes depending on the type of usage:
Single address mode
In this mode the Art. 1257 will be activated when a call is made to an internal unit with the same address.
At least one addressed internal unit must be present, with the same address as set on the module. Art.
1257 will activate only after a call is made to that address.
To programme this function, set the desired address (see page
IND 1
and leave
IND 2
at zero
Example setting code 7
IND 1
IND 2
Independent Mode
In this mode, the module must have a unique address (not used for other internal units). Art. 1257 will
activate only after a call is made to that address.
To programme this function, set IND 1 to “11111111” and set the desired address on IND 2
(see page
Example setting code 3
IND 1
IND 2
Address range mode
In this mode, at least one internal unit must be present for each address included in the range set on the
module. Art. 1257 will activate only after a call is made to these addresses.
To programme this function, set the minimum address in the range on DIP switch
IND 1
and the maximum
address in the range on
IND 2
(see page
Example setting MIN code
1 and MAX code 239
IND 1
IND 2
4.8.1 Parts description
1. JP4
jumper for selecting Permanent or Timed mode of the
OUT signal
2. JP2
do not touch
3. IND 1
DIP switch for settings
4. IND 2
DIP switch for settings
5. JP3
jumper for settings
To use the Art. 1257 with kit HFX-7000M: move jumper
JP3 to position S2
6.
Terminal block for system connection:
~+, ~-
power supply input terminals
L L BUS
line input
OUT GND
12V open collector output (max 30mA). Can be
used for operating relays, triggering DVRs or as a “Function
Switching” signal (switching input of the televisions)
V SH
standard composite video signal
7. CV5
video closure jumper
8. JP1
do not touch
1.
2.
3.
4.
5.
6.
7.
8.