Communication system for enabling a communication between a guided vehicle comprising one or several on-board systems and a remote control center, wherein the guided vehicle is powered by electricity provided by an electrified railway network comprising a power electrical infrastructure -hereafter PEI-used for providing electrical power to the guided vehicle, the communication system comprising: - a power line communication system - hereafter PLC system, configured for being connected to the control center via an IP network configured for enabling a communication of IP-based telegrams between them, the PLC system further comprising a coupling unit for its coupling to the PEI in order to use the latter as physical communication channel, the PLC system being configured for encoding each IP-based telegram received from the control center into a PLC signal and for sending the PLC signal to the guided vehicle by using the PEI as communication channel, and - an on-board power line IP based communication system - hereafter OPLC system, configured for being installed on-board the guided vehicle, configured for being connected to said one or several on-board systems of the guided vehicle, said OPLC system comprising a coupling unit configured for coupling the OPLC to the PEI that is used as a physical communication channel for the transmission of PLC signals, the OPLC system being configured for decoding into an IP-based telegram a PLC signal received from the control center and/or from another guided vehicle via the PEI and for determining whether the IP-based telegram is addressed to one of said one or several on-board systems of the guided vehicle it is configured to equip, and in the affirmative, transmitting the IP-based telegram or data comprised within said IP-based telegram to the on-board system addressed by said IP-based telegram, otherwise reencoding the IP-based telegram into a PLC signal and reinjecting the latter in the PEI; wherein each IP-based telegram comprises an identification data configured for enabling an identification of one or several recipients of the IP-based telegram. - a power line communication system - hereafter PLC system, configured for being connected to the control center via an IP network configured for enabling a communication of IP-based telegrams between them, the PLC system further comprising a coupling unit for its coupling to the PEI in order to use the latter as physical communication channel, the PLC system being configured for encoding each IP-based telegram received from the control center into a PLC signal and for sending the PLC signal to the guided vehicle by using the PEI as communication channel, and - an on-board power line IP based communication system - hereafter OPLC system, configured for being installed on-board the guided vehicle, configured for being connected to said one or several on-board systems of the guided vehicle, said OPLC system comprising a coupling unit configured for coupling the OPLC to the PEI that is used as a physical communication channel for the transmission of PLC signals, the OPLC system being configured for decoding into an IP-based telegram a PLC signal received from the control center and/or from another guided vehicle via the PEI and for determining whether the IP-based telegram is addressed to one of said one or several on-board systems of the guided vehicle it is configured to equip, and in the affirmative, transmitting the IP-based telegram or data comprised within said IP-based telegram to the on-board system addressed by said IP-based telegram, otherwise reencoding the IP-based telegram into a PLC signal and reinjecting the latter in the PEI; wherein each IP-based telegram comprises an identification data configured for enabling an identification of one or several recipients of the IP-based telegram.