Iskratel Lumia T14

Plan High-Density Subscriber Access with Room for Architecture Choices

Iskratel Lumia T14 high-density Combo OLT for GPON and XGS-PON, with up to 208 ports depending on central-switch configuration.

The Challenge and the Product Solution

The Challenge

Plan High-Density Subscriber Access with Room for Architecture Choices

High-density broadband rollouts demand substantial subscriber-facing capacity, suitable backplane performance and a clear approach to central-switch redundancy and service evolution.

The Product Solution

The Lumia T14 is a 14-slot modular Combo OLT supporting GPON, XGS-PON and listed higher-generation subscriber blades. The maximum documented 208 Combo PON ports is available in the specified single-central configuration; a redundant-central configuration supports up to 192.

Technical suitability depends on the access topology, endpoint requirements and the supplied manufacturer specification. Review the optical and service design before deployment.

Translate documented technical features into deployment decisions for the teams selecting, installing and operating the optical network.

For Capacity Planning

Use the detailed 192- versus 208-port blade combinations when balancing access density and central-switch redundancy.

For Site Engineering

Assess the 14U chassis footprint and manufacturer-rated temperature range for the proposed location.

For Service Evolution

Review Combo PON and supported subscriber-blade options when planning a future multi-generation fiber access network.

Interface / Function Documented capability
Maximum Combo PON ports 208 single central / 192 duplicated central
Maximum GPON users 26,624 at 1:128 (single central configuration)
Maximum XGS-PON users 53,248 at 1:256 (single central configuration)
Uplink connectivity Up to 600 Gbps per manufacturer highlights
Backplane Up to 400 Gbps per subscriber blade in dual-star topology
Supported access GPON, XGS-PON, Combo PON, listed 25G/50GPON blades
Chassis 14 slots, 14U
Parameter Specification
Chassis 14 slots, 14U
Subscriber blades 13 with one central blade / 12 with duplicated central blades
Maximum Combo PON ports 208 single central / 192 duplicated central
Maximum GPON users 26,624 at 1:128 (single central configuration)
Maximum XGS-PON users 53,248 at 1:256 (single central configuration)
Uplink connectivity Up to 600 Gbps per manufacturer highlights
Backplane Up to 400 Gbps per subscriber blade in dual-star topology
Operating temperature –40°C to +65°C
Supported access GPON, XGS-PON, Combo PON, listed 25G/50GPON blades
Architecture Conventional or virtualised/disaggregated operation

These pages reproduce capabilities from the supplied datasheets. Check product availability, revision, optical budget, OLT/ONT interoperability and software/feature licensing for each project.


Engineering check:

Maximum 208 Combo PON ports is listed for a single-central architecture; 192 ports for dual-central. Split ratios and user counts depend on optical-budget conditions.

Typical considerations and use cases described in the source. Final selection remains subject to project requirements.

  • High-density FTTH and business access networks
  • Central offices and optical access aggregation locations
  • Network migration with GPON and XGS-PON services
  • Large-scale modular OLT implementations

In a PON deployment, an OLT serves the optical access network through the optical distribution infrastructure. Choose subscriber blades, available uplink connectivity, optical split and any redundancy based on the actual configuration.

Illustrative PON network only. This diagram does not establish compatibility of specific OLT and ONT models, optical budget or performance.

Maximum 208 Combo PON ports is listed for a single-central architecture; 192 ports for dual-central. Split ratios and user counts depend on optical-budget conditions.

Serve larger access footprints

A high-density blade architecture provides up to 208 Combo PON access interfaces.

Choose availability strategy

Dual central switching is supported with the documented change in available subscriber blade slots.

Support mixed PON generations

The manufacturer specifies GPON, XGS-PON and listed higher-speed subscriber blade options.

Deploy in varied operating environments

The datasheet specifies –40°C to +65°C operating conditions.

14-Slot Shelf

Up to 208 Combo Ports*

GPON / XGS-PON

Redundancy Options

Frequently Asked Questions