系列组合柜主要用于安装安全型继电器，25Hz、50 Hz轨道电路器材、微机接口插接件等铁路信号设备及电气化元件组合。      

系列组合柜由继电器柜、移频柜、微机接口柜、站内综合柜、电码化柜、25Hz、50 Hz轨道柜等组成。

Modular block rack are mainly used to house safety relay, 25Hz, 50 Hz track circuit equipment, computer interface connectors and other railway signal equipment and electrified components.

Modular block rack  are mainly composed of the relay cabinet, frequency shift cabinet, computer interface cabinet, station integrated cabinet, code cabinet, 25Hz, 50 Hz rail cabinet and other components.