Product Support

Coriant HiT7500

Carritech provides full support for Coriant HiT7500 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 HiT7500 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 HiT7500
Support coverageSupply, repairs and L3 support for Coriant HiT7500
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 7500 is a powerful DWDM transport platform engineered to deliver ultra-high-capacity optical networking for regional, long-haul, and ultra-long-haul applications. Designed to handle data rates of 2.5, 10, and 40 Gbps per channel, the HiT 7500 offers up to 3.2 Tbps of total system capacity with advanced features such as full add/drop multiplexing, tunable laser transponders covering the full C-band, and sophisticated forward error correction for enhanced signal integrity. Its extended reach capabilities, supporting up to 3,000 km without regeneration, make it ideal for service providers demanding scalable, reliable, and future-proof optical transport solutions.

At Carritech, we provide comprehensive support for the Coriant HiT 7500 platform, offering fully tested systems, spare modules, and replacement parts to help maintain and expand your network infrastructure efficiently. Our experienced team assists with deployment planning, maintenance, and upgrades, ensuring your HiT 7500 network remains robust and adaptable to evolving demands. With our global inventory and fast delivery, Carritech enables you to minimize downtime and optimize your optical transport operations with confidence.

Features

Key features

  • Ultra-High Capacity
    Supports up to 3.2 Tbps total throughput, accommodating growing bandwidth demands across multiple network types.

  • Flexible Data Rates
    Handles 2.5, 10, and 40 Gbps per channel for versatile service provisioning.

  • Extended Reach
    Provides up to 3,000 km unregenerated optical transmission, reducing the need for costly regenerators.

  • Full Add/Drop Multiplexing
    100% OADM support with future upgrade path to photonic cross-connect for enhanced optical networking.

  • Tunable Laser Transponders
    Covers the entire C-band (80 wavelengths), enabling fast provisioning and reducing spare part inventory.

  • Advanced Forward Error Correction (FEC)
    Implements out-of-band FEC/EFEC technology to improve signal quality and system performance.

  • Comprehensive Optical Performance Monitoring
    Features integrated Optical Performance Analyzer (OPA) for real-time link monitoring and fast adjustments.

  • Optional Amplification Upgrades
    Supports Raman and EDFA pump upgrades for optimized signal strength over long distances.

  • G.709 Standard Compliance
    Enables seamless wavelength provisioning and management across multi-vendor network environments.

  • Direct 10GE LAN PHY Support
    Facilitates straightforward integration with Ethernet-based services.

Technical Details

Technical information

System Overview

  • Platform Type: Dense Wavelength Division Multiplexing (DWDM) transport system

  • Applications: Regional, long-haul, ultra-long-haul optical transport; data center interconnect; submarine cable systems; metro aggregation

  • Modular Architecture: Scalable and flexible design supporting various network configurations and upgrades

Optical Capacity

  • Total Capacity: Up to 3.2 Tbps system throughput

  • Channel Count: Supports up to 80 channels per fiber across the full C-band

  • Spectral Options: Fixed-grid, super-channel, and flexible-grid (flexi-grid) configurations available

Transmission Technology

  • Data Rates: 2.5, 10, and 40 Gbps per channel

  • Modulation Formats: Advanced coherent modulation including QPSK and 16QAM for high spectral efficiency

  • Detection: Coherent detection with digital signal processing for improved performance and noise tolerance

  • Amplification: Integrated erbium-doped fiber amplifiers (EDFA), booster, pre-amplifiers, and Raman amplifiers for extended reach

Add/Drop Multiplexing

  • CDC Capability: Colorless, Directionless, and Contentionless add/drop multiplexing allowing dynamic wavelength management

  • Photonic Cross-Connect Upgrade Path: Enables enhanced optical networking flexibility

Network Resiliency

  • Protection Mechanisms: Automatic Protection Switching (APS), Optical Transport Network (OTN) protection, and network redundancy features

  • Fault Management: Rapid fault detection and automated recovery for high availability

Management and Control

  • Network Management Compatibility: Supports Coriant Transcendâ„¢ Chorus and other centralized management platforms

  • Control Interfaces: SNMP, CLI, and web-based management tools

  • SDN Integration: Enables software-defined networking capabilities for automated provisioning and adaptive control

Physical & Environmental

  • Form Factor: Modular rack-mount chassis suitable for telecom-grade data centers and central offices

  • Power Supplies: Redundant, hot-swappable power modules

  • Operating Temperature: Typically 0°C to 45°C for standard telecom environments

History

Ownership & marketing history

Time Period Brand / Company Role / Notes
Late 2000s – 2013 Nokia Siemens Networks (NSN) Developed by NSN as a high-capacity packet-optical transport platform, the HiT 7500 targeted backbone and metro-core networks with 100G and beyond scalability.
2013 – 2018 Coriant After acquiring NSN’s optical division, Coriant positioned the HiT 7500 as a flexible, high-performance solution for next-gen transport networks, especially in combination with the HiT 7300.
2018 – Early 2020s Infinera Inherited via the Coriant acquisition; continued supporting HiT 7500 in existing networks while transitioning customers to Infinera’s advanced optical transport solutions (e.g., ICE and GX Series).
Present (Secondary Market) Independent Resellers & Support Specialists (e.g., Carritech) Carritech supplies refurbished HiT 7500 equipment, spares, and engineering support to extend the operational life of legacy deployments in metro and core environments.
Ongoing Product Support

Support for Coriant HiT7500 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 HiT7500 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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