An innovative Cylindrical Gas Electron Multiplier (CGEM) detector is under construction for the upgrade of the inner tracker of the BESIII experiment. A novel system has been worked out for the readout of the CGEM detector, including a new ASIC, dubbed TIGER -Torino Integrated GEM Electronics for Readout, designed for the amplification and digitization of the CGEM output signals. The data output by TIGER are collected and processed by a first FPGA-based module, GEM Read Out Card, in charge of configuration and control of the front-end ASICs. A second FPGA-based module, named GEM Data Concentrator, builds the trigger selected event packets containing the data and stores them via the main BESIII data acquisition system. The design of the electronics chain, including the power and signal distribution, will be presented together with its performance.

一个创新的圆柱形气体电子倍增器 (CGEM) 探测器正在建设中，用于升级 BESIII 实验的内部跟踪器。已经开发出一种用于 CGEM 探测器读出的新系统，包括一种新的 ASIC，称为 TIGER -Torino Integrated GEM Electronics for Readout，专为 CGEM 输出信号的放大和数字化而设计。TIGER 输出的数据由第一个基于FPGA 的模块GEM Read Out Card 收集和处理，该模块负责前端ASIC 的配置和控制。名为 GEM 数据集中器的第二个基于 FPGA 的模块构建包含数据的触发选定事件包，并通过主 BESIII 数据采集系统存储它们。电子链的设计，包括电源和信号分配，将与其性能一起展示。