Firstly any one knows any discussion forum for electronics and particularly on intercom manufacturing etc...
Secondly,
Iam trying to make such an intercom system for Hotel room communication for lets say 8 rooms which has following facilities:-
1} there will be a Main Reception Pannel board with 7 buttons , 6 buttons represent 6 different rooms and 7th button is to call a particular room. On the same board there are 6 LED representing 6 rooms, the function of these LEDs are to help the operator now from where the call is coming.
2} from the above mentioned reception pannel Single Pair will go to each of the 6 rooms, and each room will have a normal telephone set without keypad.
3} Now the function of this system should be such that when ever any one from any room pick up there handset bell starts to ring at the Main reception pannel with LED indication of that Room Number and when ever the operator wish to call any room he will first press the desired room number button on the main pannel and then press the call button.
4} here the main objective is to develop such a system in which normal telephone sets can be used on the main pannel and in rooms so that on single pair cable goes for each room.
5} I know that for this firstly we have develop a power supply of 60 Volts AC and 12 Volts Dc, use a two pole switch. But my problem is how to make such a power supply and ringing circuit , i know that for ringing circuit i need to make use of KA2410....
Now i really need help on this, please guide me how should start making this system if any one can sent me diagram of switching arrangement i will be very thankful to him.
Secondly,
Iam trying to make such an intercom system for Hotel room communication for lets say 8 rooms which has following facilities:-
1} there will be a Main Reception Pannel board with 7 buttons , 6 buttons represent 6 different rooms and 7th button is to call a particular room. On the same board there are 6 LED representing 6 rooms, the function of these LEDs are to help the operator now from where the call is coming.
2} from the above mentioned reception pannel Single Pair will go to each of the 6 rooms, and each room will have a normal telephone set without keypad.
3} Now the function of this system should be such that when ever any one from any room pick up there handset bell starts to ring at the Main reception pannel with LED indication of that Room Number and when ever the operator wish to call any room he will first press the desired room number button on the main pannel and then press the call button.
4} here the main objective is to develop such a system in which normal telephone sets can be used on the main pannel and in rooms so that on single pair cable goes for each room.
5} I know that for this firstly we have develop a power supply of 60 Volts AC and 12 Volts Dc, use a two pole switch. But my problem is how to make such a power supply and ringing circuit , i know that for ringing circuit i need to make use of KA2410....
Now i really need help on this, please guide me how should start making this system if any one can sent me diagram of switching arrangement i will be very thankful to him.
