Scheme Overview

Core Architecture and Key Products

Networking Architecture

• A 1U rack-mounted CWDM/DWDM multiplexer/demultiplexer (MUX/DEMUX) is deployed in the central equipment room to combine and split signals from all sites.
• The backbone optical fiber runs through the pole-mounted sites. Each site is equipped with a pole-mounted outdoor OADM device, which performs add/drop of local service signals while transparently transmitting signals of other wavelengths.
• Service equipment at each site connects to the OADM via CWDM/DWDM optical transceivers (1.25G/10G), forming a backhaul link of "central equipment room → multiple sites → central equipment room".

Positioning of Key Products

Positioning of Key Products

Core Advantages of the Scheme

1. Fiber resource saving: With the chain cascading mode, only 1 fiber core or 1 pair of backbone fibers can support service backhaul for multiple sites. Compared with point-to-point networking, fiber usage is reduced by more than 80%.
2. Strong environmental adaptability: The OADM adopts a pole-mounted design with IP65 ingress protection, supports wide-temperature operation, and is suitable for harsh outdoor environments such as utility poles and power towers.
3. Isolated multi-service bearing: Supports both single-fiber and dual-fiber transmission. Different wavelengths can carry video, data, voice and other services independently without mutual interference.
4. Easy expansion and operation & maintenance: Adding a new site only requires deploying an OADM and matching wavelength optical transceivers, with no need for rewiring. Passive devices require no routine maintenance.

Typical Application Scenarios

• Centralized backhaul of urban or campus security monitoring video signals
• Chain service backhaul for power towers and communication base stations
• Chain interconnection of multiple buildings in industrial parks or campuses