SH4 is an SDH cross connection card and group card, which can be configured in three different interface rate modes: STM-16 rate (1, 2 interfaces), STM-4/STM-1 rate (1~4 interfaces), and STM-16 and STM-4/STM-1 hybrid interface rate (1, 3 interfaces as a group, 2, 4 interfaces as a group).
The MS8100 series is a high-security full-service access transmission platform dominated by key account service. It supports OTN cross-connect, MPLS-TP packet switching and SDH cross-connect, with high integration, full-service access capability and flexible three-core cross-scheduling capability, to meet the needs of multiple services and high network security.