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Security system alarm transmission


By monitoring the transmission distance of the alarm system to be protected, the premise of the signal transmission system central monitoring station (CS) signal in some form (or a combination) of the. There are six types of signal transmission system: 


POTS - plain old telephone system. The system consists of (Regal) run lines from the telephone central office is connected to the protected premise. Customers get a dial tone from the premise that all switches, dial-up and deal with telecommunications companies and telecommunications companies to complete calls. The CS signal is transmitted from the TELCO to the TELCO network. 


VOIP phone network - DSL - client has a connection to the customer's DSL broadband connections VoIP modem. The modem generates a dial tone, dial-up access to Internet protocols and converted to place the call in the telephone company on the Internet. The actual alarm signal is converted into a communication packet of information, and by re-assembled and routed to the CS network in a telecommunication company to the telephone company in the internet to send there. This signal is carried from a protected premise through the telephone line to the TELCO. 


VOIP phone network - cable - client has a connection to the customer's wired broadband Internet phone modem connections. The modem generates a dial tone, dial-up Internet protocol converting and access to a wired network cable central office (CCO) call. The actual alarm signal, a communication is converted into the message packet, and through a wired network, where it is reassembled and routed to the CS network sends to the TELCO CCO. CCO from the premise that the signal is carried out in the protected cable. 


Cellular - The system may be connected to the alarm control panel, a cellular module. The wireless module sends an alarm signal to the alarm cellular network providers via the cellular network. This provides retransmission signal to CS in TELCO network. The signal is sent from the protected premise carried to an alarm in a cellular network via a cellular network providers (wireless) 


Internet - the system includes a signal receiver connected to said Internet module. Module is connected to the Internet broadband customers, and alarm signal is transmitted over the network to the CS. . This signal is carried from a protected premise to the CS on the Internet. (Various combinations of wireless and wire or cable) 


Radio - The system consists of an alarm control panel is connected to the wireless module. CS via the wireless network to the wireless alarm signal. Alarm signals from the protected premise to the CS in wireless networks (wireless)

All alarm control panels with built-in communicator, network transmission via a dial tone alarm signal, analog audio sequences. Transmission alternatives 2 and 3 of all network operations such as dial tone, but as a change from analog technology to digital environment problems may occur. POTS lines currently use analog technology, the signal is mixed from the alarm panel to CS. VOIP phone network - cable from analog signals to digital signals. Cable companies have agreed to an agreement, there will be this uncompressed digital signal, alarm signal transmission work seamlessly between the protection of the premise and CS, uncompressed signal (at this time). VOIP phone network - DSL alarm signal conversion from analog to digital, and various DSL providers have not yet agreed on a VoIP transmission protocol standards. Some DSL company does not compress, but other compression 4,8,16,32 or 64 times. With increased competition and technological progress and broadband bandwidth, there is no reason to believe that all dial tone provider will not be converted to some form of compressed digital transmission for all of their voice telephone transmission. Using the compressed digital signal the alarm signal transmission is not 100% reliable transmission method as an alarm. It is not absolute, which means that the signal can be sometimes and not other times get. This is because the use of the network's current dial tone alarm signal receiver is designed to be a simulation specification.


Irina Ng

[email protected]


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Article details
Article ID: 32
Category: Knowledgebase
Date added: 2014-09-05 07:36:35
Views: 486
Rating (Votes): Article rated 4.3/5.0 (6)

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