The PSP ‑ D00039 redundant networks controller switch (RCS) device with PSP ‑ D00040 time redundancy network controller switch device is a special version of the PRS ‑ NSP divider network, in the aspect of mechanical and electrical and network with the divider, but is used to establish the main network controller to spare automatic switching network controller firmware is different. Basic function of PSP ‑ D00039 main RCS device and PSP ‑ D00040 time RCS device and two standard network controller form redundant controller solution, can be in ships to industry, heavy industry, such as network controller are more likely to encounter risk environment to improve the reliability of the system. See the application description "redundant network controller" for installation instructions. State controller and light power LED indicator light, fault state of the LED light, is used to configure the branch power operation of jump line two system used for the main network interconnection, network interfaces, connected to two network controller of the system network connection, 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 the 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 PSP ‑ D00039 main RCS or PSP ‑ D00040 time RCS mounting bracket 1 power connector