OTS-622B STM1/4SDH 19 inches wide and 1U high, standard STM-4 service. STM-1, TM and ADM modes optional. FE interface, RS422/485/232 interface, synchronous timing interface and external alarm interfa ...
Tianjin Hengguang Technologies Co.,Ltd.
Main Products: pdh multiplexer sdh multiplexer pcm mulitiplexer coverter... More