MDS-155S,as a key member of Inmidas SDH MUX Product family,is a carrier-class, cost-effective, compact (only 1U high) SDH/MSPP platform that is designed for applications in metro and access networks to facilitate the efficient transport of traditional TDM and emerging data traffic for service providers. iber connectors and RJ-45 connector.
     MDS-155S is a modularized unit with 4 universal slots, supporting different interface cards, such as STM-1 fiber optic cards, E1 cards, Ethernet cards (EoS VCAT), and V.35 card. The main board cross-connect capacity is 504×504 VC-12s (8×8 VC-4s), allowing non-blocking adding/dropping services among different interfaces. It supports the hybrid transmission of SDH, PDH, Ethernet and N×64K V.35 services within the same equipment. With the large capacity cross-connect matrix, the MDS-155S can be configured as ADM, TM, and REG. It is suitable for multiple network topologies such as point-to-point, chain, ring, hub, and mesh networks. 

Features
　◆ 4 General Slots, supporting a range of interface cards, including SDH, PDH, Ethernet and V.35 cards.
　◆ Ethernet service supporting GFP encapsulation, VC12 virtual concatenation (1~63 VC12)
　◆ Large cross-connect matrix capacity is 504×504 VC-12s (8×8 VC-4s) and powerful networking ability
　◆ LCD display for system configuration and alarm
　◆ Inter-working with popular SDH/MSPP products of various vendors
　◆ Suitable for 3G access network transmission
　◆ Easy commissioning and maintenance
　◆ High integration, compact design
　◆ High reliability, low CAPEX and OPEX