29-06-2013, 01:29 PM
Hello there, I am from a signalling background but don't have much knowledge of the telecoms side.
I am wondering if anyone could share their knowledge with me.
I am wanting to find out:
The process by which the lineside telephones communicate with the central control?
how are the telephones prevented from overhearing the conversation between driver and signaller?
voltage and current requirements for a standard lineside phone?
Any information would be much appreciated.
Cheers
I am wondering if anyone could share their knowledge with me.
I am wanting to find out:
The process by which the lineside telephones communicate with the central control?
how are the telephones prevented from overhearing the conversation between driver and signaller?
voltage and current requirements for a standard lineside phone?
Any information would be much appreciated.
Cheers