The CARIN-SDH is a high capacity, flexible, cost effective multiplexer and transport system able to multiplex standard PDH and SDH bit rates as well as Ethernet signals to a higher level up to 2.5 Gbit/s (STM-16).

This system is a useful element in building efficient and flexible networks because of its wide range in capacity in addition to a compact and flexible design.

The main strengths of the product are:
• Multi-service product for circuit- and packet based services
• Massive Add/Drop capacity of up to:
• 252 x 2 Mbit/s(unprotected and protected)
• 48 x E3/DS3(unprotected) or 24 x E3/DS3(protected)
• 20 x STM-1o(unprotected) or 8 x STM-1o(protected)
• 16 x STM-1/e(unprotected and protected)
• 5 x STM-4o(unprotected) or 2 x STM-4o(protected)
• or 32 x 10/100Base-T Ethernet ports(unprotected)
• Compact design
• Front access for all optical and electrical interfaces
• Easy installation and maintenance
• Low power dissipation
• Flexibility in applications and protection capabilities.

» Features

One of the main features of the CARIN-SDH is its ability to add/drop and flexibly cross-connect 2 Mbit/s directly from the STM-16 level. Another attractive feature is that it can have the Ethernet connection directly to the SDH layer without any external DSU, which will make the total solution cheaper, easier and better for maintenance. Other signals that can be add/dropped are: 34, 45, 155 (STM-1), 622(STM-4) and 10/100Base-T.

Main features of CARIN-SDH are:
• Protection mechanisms supported: MS SPRing, higher order & lower order SNC/N, MSP, Dual Node Interworking (DNI).
• Synchronization and Timing:
• Support of ETSI synchronization message protocol (Timing Marker)
• Support of various synchronization modes, including 2 Mbit/s tributary timing.
• Remote maintenance and management.
• Ethernet LAN connection
• Equipment redundancy (all electrical interfaces, Core unit (including Cross-connect, Line port and power and timing unit).
• Maximum Add/Drop capacity per shelf.VC-4, VC-3 and VC-12 Bidirectional cross-connect capability