Networking only needs to be connected from the host r232 interface, which is generally completed by the fire department.
In the fire-fighting host network (brands include Bay, Lida, Jade Bird, Ai Yi, Sanjiang, Songjiang, Taihe 'an, Nuodifei, Fang Wei, Siemens, Saint-Sayre, Shan Ying, etc.), some hosts are distributed in far away places. At this time, a pair of LCFNET series CAN-to-optical Ethernet devices CAN be used to connect the local CAN network and the remote CAN network. The optical fiber transmission distance between two LCFNET devices supports 40 kilometers, which can be further extended to 80 kilometers.