The network shunt is used in the network and two branches can be separated from the main cable line. It can be powered by an external dc power source or by a network controller. When connected to a local power source, it automatically switches to a local power source to reduce power consumption on the main network. In addition, the network shunt can also be used as a repeater to effectively extend the length of the main network by 50 meters. The basic function shunt can plug the Praesideo device connected to the branch into the main network, but there is no main loop redundancy. The user can select the maximum current provided for each branch separately. The external power supply of local power supply can only be used for branches and will not be fed into the main system line. The network shunt has two LED lights for diagnostic purposes. Control and indicator light, the power state LED lights, fault state of the LED light, is used to configure branch jump line power supply operation Two system used for the main network interconnected components, network interface, two branches of for network system of the network interface, external power input and recognized safety certificate conform to the standard IEC 60065 / EN 60065 immunity in accordance with EN 55103 ‑ 2 / EN 50130 / EN 50121 ‑ ‑ 4 4 standard cooling conform to EN 55103-1 / FCC - 47 standard part b 15 emergency conform to EN 60849 / EN/ISO 7240 ‑ ‑ 16 16 54 nautical conform to the IEC 60945 standard certification Europe CPR EU_CPR CE CE COC CE CertAlarm CE DOP GL accessories quantity component 1 PRS ‑ NSP network divider mounting bracket 1 power connector