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GPT公司的SMA-4分插复用设备是SDH同步系列产品之一,为网络规划人员提供了新的、经济的途径,以满足具备网管功能的传输网络的各种要求。该设备可配置成分插型、终端型或枢纽型设备,具备完整的STM-4(622Mbps)终端,以及对主线路(直通)和支路(接入)的全面保护安排,能提供灵活的复接和路由切换。支路端口具备多种可选择的接口,包括通用的STM-1和STM-4主线路和支路模块。
GPT’s SMA-4 add-drop multiplexer is one of the SDH Synchronous Products offering network planners a new, cost-effective way to meet the diverse requirements of network-capable transport networks. The device can be configured as a plug-in, terminal or hub type device with a complete STM-4 (622Mbps) terminal and comprehensive protection of the main line (direct) and branch (access), to provide flexible complex Then and routing switch. Branch ports have a wide range of interfaces to choose from, including common STM-1 and STM-4 main and branch modules.