1. Solution Overview

The stable operation of full-range Ethernet switches, from Layer 2 unmanaged access switches and Layer 3 enterprise aggregation switches to data center core switches, relies heavily on high-performance and highly reliable electrical and optical interfaces. Specializing in network connectivity, Trxcom delivers an integrated magnetic and optical connectivity solution for switches with three core product lines: magnetic-integrated RJ45 connectors, LAN magnetics, and SFP/SFP+ optical transceivers.

Fully compatible with multi-speed Ethernet transmission and full-range PoE standards, our solution effectively solves key design challenges including high-density port layout, signal integrity, EMC compliance, industrial wide-temperature adaptability, and hybrid optical-electrical networking. It serves a wide spectrum of scenarios such as industrial automation, enterprise campus networking, video surveillance, data centers, and smart cities, providing stable, compliant, and mass-producible core connectivity support for switch devices.

2. Core Design Challenges of Ethernet Switch Interfaces

As Ethernet switches evolve toward higher port density, faster transmission speed, high-power PoE delivery, industrial-grade stability, and hybrid optical-electrical integration, hardware interface design faces widespread technical bottlenecks:

• Limited Space for High-Density Port Layout: Mainstream switches feature 8/24/48-port arrays. Traditional discrete connectors and magnetics occupy excessive PCB space, causing crowded routing, complicated layout, oversized device dimensions, and low assembly efficiency, failing to meet miniaturization and integration requirements.

• Unstable High-Power PoE Delivery: Switches for surveillance, IoT, and campus networking need to support IEEE 802.3af/at/bt with up to 90W PoE++ power per port. Conventional magnetics lack sufficient isolation, easily leading to voltage drop, signal interference, and overheating downtime.

• EMC Compliance Risks: Enterprise and industrial network devices must meet FCC/CE Class B EMC standards. Superimposed electromagnetic interference from multi-port parallel operation causes crosstalk and excessive radiation on ordinary unshielded or semi-shielded interfaces, resulting in packet loss and unstable transmission.

• Insufficient High-Speed Signal Integrity: With the popularization of 2.5G/5G/10G high-speed Ethernet, ordinary magnetic components suffer from excessive insertion/return loss and poor common-mode rejection, failing to sustain stable high-frequency data transmission.

• Poor Adaptability for Hybrid Optical-Electrical Networking: Switch uplink ports require both electrical access and optical aggregation. Generic SFP accessories lack integrated heat dissipation, dustproof, and anti-interference design, unable to support long-distance and high-bandwidth uplink transmission.

• Inadequate Adaptability to Harsh Environments: Industrial and outdoor scenarios feature extreme temperature fluctuations. Ordinary interface components have narrow temperature tolerance, prone to performance degradation and failure, and cannot support 7×24-hour uninterrupted operation.

3. Trxcom Core Connectivity Solutions

Targeting full-dimensional interface design pain points, Trxcom launches three series of customized switch connectivity solutions based on years of R&D and mass production experience, achieving integrated advantages ofhigh-speed transmission, high-power PoE supply, strong anti-interference, high integration, and wide-temperature stability.

3.1 Shielded Magnetic-Integrated RJ45 Connector Solution

Tailored for multi-port switches, Trxcom high-density magnetic RJ45 connectors integrate isolation transformers, common-mode chokes, and metal shielding housings into a single unit. Replacing traditional discrete solutions, they greatly simplify PCB routing and save over 30% board space, perfectly fitting stacked layout designs for 8–48 port switches.

Core Performance & Advantages:

• Full-speed compatibility: Supports 10/100/1000Base-T, 2.5G/5G/10GBase-T, covering all switch levels from fast Ethernet to 10G Ethernet;

• Full PoE standard coverage: Fully compliant with IEEE 802.3af/at/bt, stably supporting up to 90W PoE++ power supply for IP cameras, wireless APs, and industrial terminals;

• Flexible packaging options: Available in SMD and through-hole types, compatible with automated mass production and diverse manufacturing processes;

• Superior shielding performance: Full metal shielding suppresses multi-port crosstalk and external electromagnetic radiation, fully meeting enterprise-grade EMC Class B requirements;

• High-density stacked design: Optimized for multi-port array deployment to solve routing congestion in high-density switch designs.

3.2 High-Frequency High-Performance LAN Magnetics Solution

Trxcom discrete LAN magnetics are deployed between switch PHY chips and RJ45 interfaces. Optimized magnetic core and winding processes significantly enhance signal integrity and EMI suppression, serving as reliable passive components for commercial and industrial high-speed switches under harsh operating conditions.

Core Specifications & Strengths:

• Excellent high-frequency performance: Insertion loss < 1dB @ 100MHz, return loss > 16dB, minimizing signal attenuation for stable 10G high-bandwidth transmission;

• High common-mode rejection: Superior CMRR performance filters common-mode noise effectively, eliminating packet loss, latency, and data errors;

• High-voltage isolation: 1500Vrms isolation between line and circuit, protecting devices from surge and ESD damage;

• Industrial wide-temperature tolerance: Operating temperature range from -40℃ to +85℃, ensuring stable operation in high-temperature rooms, low-temperature outdoor, and industrial workshop environments;

• Consistent mass production: High component consistency reduces failure rates and after-sales costs for large-volume manufacturing.

3.3 SFP/SFP+ Optical Uplink Compatibility Solution

Designed for switch aggregation and long-distance networking, Trxcom standardized SFP/SFP+ optical interface solutions include optical transceivers, shielded cages, heat dissipation modules, and EMI gaskets. Enabling seamless optical-electrical switching, they support high-bandwidth and long-distance uplink transmission for campus aggregation and data center networking.

Core Compatibility & Capabilities:

• Multi-rate optical adaptation: Compatible with 1G/10G mainstream SFP/SFP+ slots and industry-standard switch hardware architectures;

• Multi-scenario fiber support: Works with single-mode and multi-mode fibers (SR/LR/BiDi) for short-range data center interconnection and long-range campus transmission;

• Integrated protection design: Optional heat sinks and EMI gaskets optimize heat dissipation and electromagnetic shielding, preventing high-temperature speed reduction and radiation over-limit issues;

• Industrial environmental adaptability: Supports -40℃~+85℃ wide-temperature operation, stabilizing uplink links for industrial and outdoor aggregation switches.

4. Key Application Scenarios

Trxcom switch connectivity solutions cover full-range commercial and industrial switch applications:

• Industrial Edge Switches: Ideal for unmanaged industrial switches in factory automation and edge computing, adapting to complex electromagnetic and temperature-variable industrial environments via wide-temperature, anti-interference, and high-isolation performance;

• Enterprise Aggregation Switches: Suitable for Layer 3 managed core/aggregation switches in campuses, office buildings, and campuses, supporting large-scale stable terminal networking with high-density layout, high-speed transmission, and EMC compliance;

• PoE Powered Switches: Perfect for surveillance, wireless coverage, and VoIP PoE switches, stably powering IP cameras, WiFi APs, and VoIP terminals with full-spec PoE compatibility;

• Fanless Embedded Switches: Adaptable to fanless embedded switches in smart city devices, self-service kiosks, and surveillance enclosures, featuring low loss, high integration, and low heat generation for enclosed and silent operation.