Field Energy-Saving Measurement of Enterprise All-Optical Network Transformation: How Weak-Current Room Passivization Helps Campanus Cut Carbon Emissions

Active switches deployed in weak-current rooms of traditional networks form a hidden power cost black hole. This article illustrates how passivization of weak-current rooms eliminates continuous power consumption, and introduces the carbon reduction practices of AINOPOL based on passive ODN, converged gateways and the EAAS platform.

When calculating the ROI of all-optical network renovation, most enterprises only focus on network speed and construction costs, while ignoring power consumption. Filled with active switches, weak-current rooms require continuous power supply and heat dissipation all year round, constituting a hidden source of energy consumption and carbon emissions on campus. From the perspective of energy conservation and carbon reduction, this article analyzes the tangible benefits brought by weak-current room passivization, as well as the practical implementation approach of AINOPOL.

I. Where the Power Consumption Black Hole Lies in Traditional Networks

• Non-stop power supply for weak-current rooms: Aggregation and access switches are deployed close to end terminals. Weak-current rooms on every floor run powered continuously, generating persistent energy consumption.
• Mandatory cooling and ventilation: Active devices produce heat, requiring air conditioners or enhanced ventilation inside weak-current rooms. Cooling equipment itself accounts for a large share of energy usage.
• Fault points equal extra consumption: A large quantity of active hardware means frequent replacements upon failure. Maintenance, spare part stock and regular inspections generate implicit overheads.

II. Passivization: Eliminate Power Demand Inside Weak-Current Rooms

Passive optical splitters replace active switches. In all-optical solutions, central-side OLT equipment transmits signals via passive splitters to floor-mounted ONUs and optical terminals. No active aggregation hardware is deployed in weak-current rooms, removing the need for power supply and cooling.

• No dedicated equipment room required: Compact passive components operate without power and can be installed directly inside weak-current boxes, saving power consumption and physical space for weak-current facilities.
• Greatly reduced potential fault points: Passive intermediate nodes are maintenance-free, improving overall network reliability and cutting resource waste caused by frequent equipment replacement.

III. AINOPOL Passive Network Solutions for Carbon Reduction

1. Passive ODN Backbone Infrastructure
   Single-mode optical fibers are laid between buildings, and passive optical splitters are installed in floor weak-current shafts. These passive units need no power or cooling and fit directly into weak-current boxes, cutting power consumption and space occupation for weak-current rooms.
2. Central Convergence via Converged Gateways
   The Dream Series security multi-service gateway integrates OLT, routing, AC controller, firewall, IPPBX, SD-WAN and other functions into a single all-in-one device. The number of devices in the central equipment room is significantly reduced, lowering supporting power supply and cooling loads accordingly.
3. Unified Optical Backbone Avoids Duplicated Construction
   Office service, surveillance, voice communication, video conferencing and IoT systems share the same fiber infrastructure. Independent cabling and power supply for individual systems are no longer required, saving raw materials and energy consumption.
4. Eco-Friendly Non-Metallic Optical Fiber
   Optical fiber is non-metallic, long-lived and immune to electromagnetic interference. Once deployed, it can be reused over decades, reducing material waste from repeated reconstruction for bandwidth upgrades.
5. Centralized O&M Reduces Labor-Related Energy Consumption
   The EAAS cloud platform supports remote status monitoring and configuration management, cutting travel expenses and on-site workload for operation staff.

The energy-saving benefit can be evaluated from three dimensions: number of weak-current rooms multiplied by annual power cost per room, labor workload for fault handling proportional to device quantity, and savings from eliminating dedicated weak-current rooms. Deployed campus projects have witnessed measurable energy cuts thanks to fewer hardware units and reduced cooling demand after weak-current room passivization. Exact figures vary with campus scale and legacy network layout and shall be subject to on-site surveys and customized project proposals. The saved power and cooling consumption can be counted as green renovation achievements for corporate carbon accounting.

FAQ

Q: Will network stability decline after weak-current room passivization?
A: No. Passive optical splitters require no power and maintenance, removing failure risks associated with active hardware. Critical links can adopt dual-homing protection to achieve 50ms-level failover upon faults.

Q: Can energy-saving effects be quantified?
A: Estimation can be carried out based on the number of weak-current rooms, device quantity and supporting facilities. Actual savings differ for each site and shall be calculated according to project plans; universal fixed figures are not applicable.

Q: Does passivization contribute to carbon reduction?
A: Yes. Lower power demand, reduced cooling load and fewer repeated construction projects all cut energy and material consumption, which can be incorporated into campus green transformation and carbon emission accounting.