The Type II collector (model: DCZL13-ZTY666) is a new generation of collection equipment designed based on the requirements of the State Grid Corporation of China for building a power user electricity information collection system, combined with years of research and development and on-site operation experience in the power industry. The downstream communication of the collector adopts RS485 mode to collect energy information from multiple energy meters, and the upstream communication adopts power line carrier mode to complete data exchange with the concentrator. It is mainly suitable for the construction of automatic meter reading systems for low-voltage residential users.