Design and implementation of digital multiplex system with fpga 的数字复接系统的设计与实现
Digital multiplex hierarchy 数字复接体系
Digital multiplex equipment 数字复用设备
Performance and test methods of the second order digital multiplex equipment operating at 8448 kbit s and using positive justification 8448 kbit s正码速调整二次群数字复用设备技术要求和测试方法
Performance and test methods of the fourth order digital multiplex equimpent operating at 139264 kbit s and using positive justification 139264 kbit s正码速调整四次群数字复用设备技术要求和测试方法