Product Support

Coriant Hit 7035

Carritech provides full support for Coriant Hit 7035 networks, including spare part supply, repair options and advanced L3 Remote Technical Support for organisations maintaining critical telecom infrastructure.

Spare part supplySource replacement parts and legacy telecom hardware for Coriant Hit 7035 systems.
Repairs and lifecycle supportExtend the life of existing network assets with practical repair and replacement options.
L3 Remote Technical SupportAccess senior telecom engineering support for complex faults, escalation and continuity planning.
Coriant Hit 7035
Support coverageSupply, repairs and L3 support for Coriant Hit 7035
Product Information

Technical resources and product details

Explore product information, key features, technical details, ownership history and downloadable resources for this product family.

Overview

Product information

The Coriant HiT 7035 is a high-performance, carrier-class Multi-Service Provisioning Platform engineered for scalable SDH network environments converging TDM, PDH, and Ethernet services. With non-blocking cross-connect capacities of up to 33 Gbps at VC‑4 and 10 Gbps at VC‑12, the HiT 7035 supports STM‑1, STM‑4, and STM‑16 interfaces in a compact modular chassis. It seamlessly enables converged service delivery through features like GFP mapping, VCAT, LCAS, ATM‑IMA aggregation, and integrated Layer 2 switching.

Built to operate in demanding telecom networks, the HiT 7035 includes robust protection mechanisms such as SNCP, MSP, 2F‑MS‑SPRing, and hardware-level redundancy, alongside RSTP for Ethernet traffic safeguarding. Designed to fit both 19″ and ETSI racks, it supports diverse deployment topologies—including ring, linear, hubbing, and multi-ring—making it ideal for metro access, enterprise, and mobile backhaul infrastructures.

At Carritech, we provide carrier-grade support for the HiT 7035 platform—offering fully tested systems, replacement modules, and spare parts designed to extend the life of legacy infrastructure. Whether you’re updating active networks or building resilient spare inventories, our technical services and global stock solutions ensure your HiT 7035 installations remain reliable, service-ready, and cost-efficient.

Features

Key features

  • High-Capacity Cross-Connect
    Provides up to 33 Gbps for high-order paths (VC-4) and 10 Gbps for low-order paths (VC-12), supporting flexible service aggregation.

  • Multiservice Support
    Integrates SDH, PDH, and Ethernet traffic within a single compact platform—ideal for hybrid TDM and packet-based networks.

  • Comprehensive Interface Options
    Supports STM-1, STM-4, and STM-16 optical interfaces as well as E1, DS3, Fast Ethernet, and Gigabit Ethernet modules.

  • Advanced Ethernet Features
    Includes GFP (Generic Framing Procedure), VCAT (Virtual Concatenation), and LCAS (Link Capacity Adjustment Scheme) for efficient Ethernet over SDH transport.

  • Carrier-Class Reliability
    Redundant power supplies, hot-swappable cards, and high availability design ensure dependable operation in critical network environments.

  • Protection Mechanisms
    Built-in support for SNCP, MSP, 2F-MS-SPRing, and RSTP for fault-tolerant SDH and Ethernet network topologies.

  • Flexible Deployment
    Suitable for ring, linear, hubbing, and multi-ring configurations, supporting metro access, business services, and mobile backhaul.

  • Layer 2 Ethernet Switching
    Enables local switching of Ethernet traffic with VLAN support and traffic segmentation.

  • Compact and Rack-Friendly
    Space-efficient design compatible with standard 19″ and ETSI racks, optimized for central office and remote site installations.

  • Network Management Integration
    Supports SNMP, CLI, and centralized network management systems for easy provisioning, monitoring, and maintenance.

Technical Details

Technical information

System Overview

  • Platform Type: Modular, rack-mounted Multi-Service Provisioning Platform

  • Use Cases: Metro access, business services, mobile backhaul, enterprise connectivity

  • Deployment Modes: Add-drop multiplexer (ADM), terminal multiplexer (TMX), local cross-connect (LXC), multi-ring terminal (MRT)

  • Topology Support: Ring, linear, hubbing, and multi-ring configurations

Switching Capacity

  • Cross-Connect Matrix:

    • 33 Gbps high-order (VC-4)

    • 10 Gbps low-order (VC-12)

    • Non-blocking architecture for both HI and LO path switching

  • SDH Mapping: Fully compliant with ITU-T standards for VC-12, VC-3, and VC-4 structures

Supported Interfaces

  • SDH Optical Interfaces:

    • STM-1 (OC-3)

    • STM-4 (OC-12)

    • STM-16 (OC-48)

    • Pluggable optics via SFP modules for flexible reach and wavelength options

  • PDH Electrical Interfaces:

    • E1 (2 Mbps)

    • DS3/E3 (on specific interface cards)

  • Ethernet Interfaces:

    • 10/100Base-T

    • 1000Base-T and 1000Base-X

    • VLAN tagging (IEEE 802.1Q)

    • Integrated Layer 2 switching

Ethernet over SDH Features

  • GFP (Generic Framing Procedure)

  • VCAT (Virtual Concatenation) – For scalable Ethernet transport

  • LCAS (Link Capacity Adjustment Scheme) – Enables dynamic bandwidth adjustment

Protection & Reliability

  • SDH Protection:

    • SNCP (Sub-Network Connection Protection)

    • MSP (Multiplex Section Protection)

    • 2F-MS-SPRing (Two-fiber multiplex section shared protection ring)

  • Ethernet Protection:

    • RSTP (Rapid Spanning Tree Protocol)

  • Redundancy:

    • Optional dual control units

    • Redundant power supplies

    • Hot-swappable interface cards

Synchronization

  • Timing Sources:

    • Line timing

    • External timing input

    • Internal synchronization

  • Synchronization Distribution: Supports clock redundancy and holdover modes

Management

  • Management Interfaces:

    • CLI (local console or remote access)

    • SNMP for integration into network management systems

    • Centralized control via Coriant’s management suite

  • Monitoring and Maintenance:

    • Alarm generation and logging

    • Performance monitoring (ITU-T G.826, G.828, G.829 compliance)

    • Remote software download and upgrade support

Physical & Environmental

  • Form Factor: Compact, modular chassis

  • Mounting: Compatible with 19-inch and ETSI rack standards

  • Cooling: Fan-cooled with front-to-back airflow

  • Power Supply: -48V DC (telecom standard)

  • Operating Temperature: 0°C to +45°C (standard indoor conditions)

History

Ownership & marketing history

Time Period Brand / Company Role / Notes
Late 2000s – 2013 Nokia Siemens Networks (NSN) Original developer and manufacturer of the HIT 7035, positioned as a high-capacity optical transport solution within NSN’s metro WDM/SDH portfolio.
2013 – 2018 Coriant Product line transitioned to Coriant following its acquisition of NSN’s optical transport division; HIT 7035 remained a key component of Coriant’s transport solutions.
2018 – Early 2020s Infinera Inherited through Coriant acquisition; supported existing installations while directing customers toward next-generation platforms. HIT 7035 began being phased out.
Present (Secondary Market) Independent Resellers & Support Specialists (e.g., Carritech) Carritech offers continued lifecycle support, refurbishment and spares for HIT 7035 systems in active legacy networks.
Ongoing Product Support

Support for Coriant Hit 7035 networks

Carritech helps organisations keep legacy telecom networks operational with spare part supply, repairs and advanced L3 Remote Technical Support for critical infrastructure environments.

01

Spare parts supply

Source replacement parts, legacy hardware and supporting equipment for Coriant Hit 7035 systems through Carritech’s global telecom supply network.

02

Repairs and lifecycle support

Extend the useful life of existing telecom assets with practical repair, replacement and lifecycle support options designed to reduce unnecessary network risk.

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