为了自动搭接低轨道卫星通信网中从呼叫方和被叫方之间的微波通信链路，需要构建专门的微波程控交换机实现这一功能，微波开关阵列适配器模块是该设备的关键部件。该适配器模板基于PXI总线设计，其系统控制器通过PCI总线桥对本地遵循ISA总线规范的I/O适配器进行访问操作，实现对微波开关的分合控制操作和遥测状态检测操作。PCI总线桥采用低成本的PCI9052实现，本地ISA总线的逻辑信号生成和I/O适配器电路则采用国产FPGA电路编程实现。适配器模板开发完成之后在实验室对所实现的主要功能和性能指标进行了测试，与预期目标相符。

In order to automatically connect the microwave communication link between the calling party and the called party in the low orbit satellite communication network, a specialized microwave PBX needs to be built to achieve this function, and the microwave switch array adapter is a key component of the equipment. The adapter modular is designed on the PXI bus, and its system controller accesses the local I/O adapter that follows the ISA bus specification through the PCI bus bridge, realizing the on/off control operation and telemetry status detection operation of the microwave switches. The PCI bus bridge is implemented using low-cost PCI9052, while the local ISA bus logic signal generation and I/O adapter circuit are programmed using a domestically produced FPGA circuit. After the modular development was completed, the main functions and performance were tested in the laboratory, which met the expected goals.