Flexible DWDM Optical Transport for Diverse Network Scenarios
Tryin provides flexible and diverse white-box DWDM solutions for cloud service providers, internet enterprises, telecommunications carriers, and operators of large-scale private networks. Our DWDM platform maximizes the utilization of existing fiber resources and is suitable for various application scenarios, including data center interconnect (DCI), metro aggregation, and long-haul backbone transmission.
ZDCI Platform features zero-touch provisioning and supports automatic optimization upon power-up. Engineers can remotely handle deployment, wavelength planning, and configuration via a web-based management interface, reducing on-site commissioning and shortening delivery times across diverse optical transport networks.
Flexible Deployment
Support DCI, metro aggregation and long-haul backbone transmission within one solution framework.
High Fiber Utilization
Maximize existing fiber resources by multiplexing multiple services over limited fiber pairs.
Zero-Touch Operation
ZDCI enables simplified provisioning, remote management and faster project delivery.
Scalable Architecture
Support fixed-channel and intelligent ROADM-based networking with room for future growth.
Three Typical DWDM Network Topologies
Choose the right optical transport architecture according to distance, node count, protection requirements, and service distribution.
Point-to-Point DWDM Transmission
Connect two sites over a pair of fibers and multiplex multiple wavelength services for metro and long-haul capacity expansion. Our zero-touch ZDCI platform integrates Mux/Demux and EDFA amplification, with no complex manual commissioning required.

Multi-Node Chain DWDM Deployment
Sequential chain-style DWDM deployment across 3+ sites. Add/drop wavelengths at intermediate nodes via OADM cards. Flexible bandwidth provisioning for distributed sites.

Protected Ring DWDM Network
DWDM ring topology with optical layer protection switching. When a fiber failure occurs, traffic automatically switches to the backup path to avoid service outage.

Choose DWDM Equipment for Your Network
The right DWDM architecture begins with the service mix, wavelength plan, link budget, available fibers, and protection needs.
Requirement Checklist
Service type and transmission rate
Determine service types and line rates, including 100G/200G/400G/800G mixed traffic for DCI or an enterprise private network.
Channel count and growth plan
Determine the number of wavelengths you need and reserve expansion space for future bandwidth upgrades.
Distance and optical power budget
Assess transmission reach and link loss budget for metro DCI or a long-haul private network.
Fiber count and network topology
Check fiber resources and confirm the topology: point-to-point, ring or chain networking.
Protection and management needs
Define service protection requirements and choose between a modular platform and our Zero-Touch ZDCI system for simplified operation.
DWDM Equipments
| Product Type | Role in the Solution | Selected According To |
|---|---|---|
| DWDM (TN2000 Series & DCI Series) | Tryin self-developed end-to-end DWDM optical transmission solution built upon TN modular chassis. Hardware carrier for all hot-swappable service cards. TN series supports flexible card-based modular expansion, fixed-channel basic networking and intelligent ROADM-enabled networking for DCI, metro aggregation and long-haul backbone scenarios. A built-in NMU management unit delivers web-based, SNMP-compatible out-of-band network management. | Overall project bandwidth, transmission distance and network topology. |
| DWDM ZDCI (Zero-Touch Series) | The ZDCI series is factory pre-integrated for zero-touch provisioning. The integrated NMU main control board provides system OAM. | Available card slots, system capacity, operating environment and requirements for out-of-box zero-touch deployment. |
| Transponder / Muxponder Card | Performs client-side signal regeneration, rate conversion and service multiplexing. Converts multi-rate client signals into ITU-T standard DWDM wavelengths to maximize fiber resource utilization. Supports 3R signal regeneration. | Client-side interface rate, service bandwidth and multiplexing capacity requirements. |
| Mux / Demux Card (AWG-based) | Multiplexes multiple ITU-T wavelength channels onto a single fiber pair and demultiplexes signals at the receiving end for DWDM transmission. | Wavelength channel quantity, channel spacing (50 GHz / 100 GHz) and fiber connector specification. |
| EDFA Optical Amplifier Card | Compensates optical fiber link attenuation for long-distance transmission and stabilizes output power through AGC / APC control. | Link optical power budget, maximum transmission distance and node density. |
| ROADM Module | Self-developed reconfigurable optical add-drop multiplexer module. Supports direction-agnostic and wavelength-agnostic flexible wavelength routing for metro ring and mesh topologies. | Metro ring/mesh topology, dynamic wavelength scheduling and network expansion requirements. |
| OLP Card | Optical line protection card. Monitors real-time optical power and triggers automatic switchover between working and standby fiber paths to ensure service continuity against fiber faults. | Network SLA for service availability and physical-layer link protection demand. |
| OTDR Fiber Monitoring Card | Integrated OTDR module for real-time fiber link quality inspection, measuring fiber attenuation and pinpointing fiber-cable fault locations. | 24×7 fiber-cable maintenance requirements and precise fault-location demand. |
| DCM Dispersion Compensation Module | Compensates chromatic dispersion for G.652 single-mode fiber and optimizes transmission performance for long-haul DWDM links. | Fiber type, transmission span distance and residual dispersion budget. |
From Requirements to Deployment
A clear five-step workflow from your first discussion to project execution and delivery.
Initial Communication
Requirements Confirmation
Proposal and Quotation
Contract Signing
Project Delivery
Related Products
DWDM Guides
Contact Us
Phone
+8618934815799
Address
Building 13, Unit 1, Creative Industry Park, No. 70 Qilidian Road, Qixing District, Guilin City