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11.7.
Table of codes
Code tables are used to quickly assign lock codes for all physical numbers. Table of codes in
KDC3905 is compatible with code tables from CD1803 systems – lock codes are generated based
on the year and table number. Change of code table parameters can be modified by appropriate
parameters and does not require manufacturer's intervention.
Change of codes is carried out by editing two parameters: year of the code table (parameter no.
209) and table number (parameter no. 208).
Parameter name
Code table number
Code table year
Table 12 Code table parameters
It is possible to set the lock code for the property independently. If this code is set manually, it
takes precedence over the code from table. Individual lock codes are set in program A-3 (see
section 10.4). Unlike the code table, codes entered in program A-3 are assigned to logical
numbers.
Note!
For technical reasons, the CD1803 control panels had 2001 code tables uploaded at the
factory in 2002. In case of installing the KDC3905 system, instead of the old system for control
panels manufactured in 2002, make sure that the code table is available every year. Entering a
different year will result in the change of all lock codes.
11.8.
Feedback
Feedback allows you to establish a connection with any cassette in the system, called by the
camera installed in any premises (if the one is properly configured).
Feedback should be directed to common satellites. Return communication cannot be "redirected"
to another PBX or its local satellites.
11.8.1. Feedback configuration
Feedback communication is disabled by default. The first step in the configuration is to set
keyboards that are to be used for feedback communication, which is equivalent to unblocking the
communication. They are defined using bitmask in parameter 250. Unlike parameters, e.g. lock or
OC, the bitmask for feedback is not above 127 – it is not correlated with any of the cassettes, so it
cannot be treated as a "local" event in any case.
Switching on individual cassettes to handle the feedback communication consists in entering in
parameter 250 the sum of values assigned to the keyboard number (i.e. connection of cassettes 1
and 3 is made by entering the number 5 = 1 + 4 – see section 10.8.3).
By default, the feedback communication can be called from any device in the system. There is a
possibility of blocking the return communication for individual premises. This is done in
subprogram A-4 by using the flag "feedback interlocks" (see chapter Program A4 – parameters of
).
11.8.2. Use of feedback
Feedback communication is called using the device's ANSWER button (button P1 in the idle state).
If the button is pressed while the handset is not in use, the system will first address the decoder
Number
208
209
Symbol
⧫
⧫
45
Scope
0-9999
2000-2100
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