Comelit MT CT 01 - Manual (Page 16)

MT CT 01
MT CT 01 15
Diagram 4 - CT01A: System with 2 analog lines and 8 branches
E
NTRY PHONE INTERFACE EXPANSION CARD
A
RT
. 2909
This card allows the telephone switchboard to be connected to an entry phone system. In this way it is
possible to reply to entry phone calls directly from the telephones and control door opening, turning on lights,
etc. from these.
It is possible to manage four external unit call inputs or, alternatively, to configure these as floor door call.
Installation of the expansion
Before proceeding, the 220V voltage to the switchboard must be removed. At this point, according to what is
indicated in Fig. 5:
1. Remove the side covers and the central cap from the switchboard.
2. Insert card 2909 in the special housing.
3. Put back the covers.
4. Reconnect the 220V voltage to the switchboard.
5. The card will be recognised automatically.
Default configuration
Once expansion 2909 is installed, the configuration is as follows:
• Four external unit calls are configured
• All the telephones are enabled to receive the entry phone calls
• The Door Opener time is one second
• The auxiliary relay outputs are monostabl
What needs to be programmed in the case of card replacement:
Adjustment of the external unit volumes is necessary.