SDH Add/Drop multiplexers in the access network are the interface between an SDH network with fast transmission speed and the services of an access network with lower transmission speed.
SDH networks are employed today and will be further employed in many sectors. Due to the high quality of data transmission and the variety of protective functions SDH networks are ideal for mission-critical sytems.
For add/drop applications KEYMILE provides the following system:
UMUX provides highly flexible and fully featured SDH STM-1/-4 ADM and TM solution supporting 2 Mbps, 34 Mbps, 45 Mbps and partially filled optical STM-1 tributaries.