The Marconi MSH-11 is a compact, multiservice SDH (Synchronous Digital Hierarchy) access node designed for telecommunications operators looking to deliver high-performance, flexible voice and data transport services. Known for its reliability and modularity, the MSH-11 supports a variety of transmission interfaces including STM-1, STM-4, and E1, making it well-suited for last-mile, metro access, or enterprise service delivery within SDH networks.
As part of the broader Marconi SDH portfolio, the MSH-11 plays a key role in networks where space is limited but robust service and traffic management capabilities are required. It is commonly used in legacy transport networks still in operation across Europe, the Middle East, and Latin America.
Carritech helps operators maintain and extend the life of their Marconi MSH-11 deployments by sourcing hardware and modules from a global network of trusted partners. Whether you’re replacing failed components, expanding your SDH footprint, or integrating legacy systems into modern architectures, Carritech can support your specific operational needs with tested, verified equipment and experienced technical support.
Compact form factor suitable for space-limited environments
Supports STM-1 and STM-4 transmission interfaces
Offers multiple E1 tributary interfaces for voice and data services
Modular design with flexible configuration options
Designed for SDH-based multiservice delivery at the network edge
Supports pointer processing, cross-connect functionality, and advanced protection schemes
Network management via integrated Marconi OMS software platforms
Ideal for access and aggregation layers in legacy SDH infrastructures
Carrier-grade reliability with proven field performance
Low power consumption and high MTBF for cost-effective operation
Form Factor: Rack-mounted compact chassis (typically 2U or 3U)
Dimensions: Approx. 440 mm (W) x 88–130 mm (H) x 240 mm (D) — varies by version
Transmission Interfaces:
2 x STM-1 (optical/electrical)
1 x STM-4 (optical)
E1 interfaces (typically 21 to 63, depending on configuration)
Cross-Connect Capacity:
VC-12 and VC-4 level switching
Management Interface:
Local and remote access via TL1, SNMP, or proprietary NMS
Compatible with Marconi’s OMS (Optical Management System)
Power Supply:
-48 VDC standard input
Redundant power options available
Cooling:
Fan-based airflow, front-to-back or side-to-side
Environmental:
Operating Temp: 0°C to +45°C (standard)
Storage Temp: -25°C to +70°C
Humidity: Up to 95% non-condensing
Certifications:
EMC and safety compliant to ITU-T and ETSI standards
Typical Applications:
Last-mile SDH access
Corporate leased line delivery
Mobile backhaul (legacy TDM)
Interfacing with legacy PBXs or PDH equipment
| Time Period | Brand / Company | Role / Notes |
|---|---|---|
| Early 2000s – 2005 | Marconi Communications | Original developer and manufacturer of the MSH-11 as part of its SDH product portfolio. |
| 2005 – 2006 | Marconi (acquired by Ericsson) | Ericsson acquired Marconi’s assets and continued limited support for legacy Marconi SDH products, including the MSH-11. |
| 2006 – Present | Ericsson (legacy support only) | MSH-11 was eventually phased out of Ericsson’s active portfolio. Limited support remained for existing deployments through long-term service agreements. |
| Present (Secondary Market) | Independent Resellers, Third-party Support Specialists (e.g., Carritech) | Carritech helps source, refurbish, and support MSH-11 units and modules to extend the lifecycle of legacy SDH infrastructure. |
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From expert maintenance and repair to reliable part sourcing and technical consultation, we provide comprehensive support for every stage of your network’s lifecycle. Whether you’re extending the life of legacy systems or integrating with modern infrastructure, our team ensures seamless, efficient, and cost-effective solutions—so you can focus on performance, not problems.