Server Management

Equlon SR USB-O2Industrial Internal USB Out-of-Band Server Management Module

Enterprise server power and continuity management with no physical intervention and zero cable clutter.

Equlon SR USB-O2 internal USB out-of-band server management module

Uninterrupted Business Continuity, Zero Field Operations

Having to send a technician to the data center whenever a server's operating system locks up, hits a kernel panic or shows a blue screen multiplies maintenance costs and service downtime. Equlon SR USB-O2 is an OS-independent, hardware-based out-of-band (OOB) management solution that plugs directly into the server motherboard's internal 9-pin USB 2.0 header.

Even when your server is completely frozen, you can remotely trigger its Reset and Power buttons at the hardware level and bring the system back up in seconds.

Key Hardware and Software Capabilities

Full Industrial Operating Range (-40°C to +85°C)

An X7R dielectric ceramic capacitor design, industrial-grade semiconductors and the high-temperature ESP32-C3-MINI-1-H4X SoC withstand harsh in-cabinet temperatures without compromise.

Cable-Free State Detection (USB Suspend/Resume)

No need to run an extra cable to the front-panel Power LED header. The ESP32-C3 analyzes host controller activity and suspend states over the internal USB data lines (D+/D-) to determine at hardware level whether the server is on (S0) or off/standby (S5).

Full Galvanic Optical Isolation

The motherboard's front-panel Reset and Power lines are protected by industrial optocouplers and 2N7002 open-drain MOSFET drivers. Ground loops, leakage currents and electrical noise between the server and the control module are completely blocked.

Dynamic Wi-Fi Mesh Built for Metal Chassis

To overcome the Faraday cage effect of server chassis, modules communicate with each other in a wireless mesh topology (hop-by-hop), providing lossless access to the gateway through the module closest to the outside of the cabinet.

Ultra-Low-Profile Form Factor

Its slim design fits directly inside 1U and 2U blade and rack servers without touching adjacent RAM slots or PCIe riser cards.

Data Center-Grade Fire Safety

The module enclosure and PCB layer fully comply with the UL94-V0 self-extinguishing flame-retardant rating that enterprise data centers require.

Technician Safety (Maintenance Jumper)

When the on-board hardware maintenance jumper is shorted, all trigger commands, whether remote or from the automatic software watchdog, are locked out, keeping field technicians physically safe while they work.

Dynamic Fallback and Local Discovery

When a new MQTT broker is configured remotely, the module tests the connection and automatically falls back to the last working address if the link drops. On isolated sites without internet access, devices can be configured in bulk with a single UDP broadcast.

Technical Specifications

Dimensions:45 mm x 10 mm x 43 mm (boxed OEM module)
Chassis Compatibility:1U, 2U, 4U rack, blade and industrial server chassis
Host Interface:Standard 2.54 mm internal 9-pin / 10-pin female USB 2.0 motherboard header
Input Voltage:5V DC VBUS (via motherboard USB standby / +5VSB rail)
Operating Temperature:-40°C to +85°C (full standard industrial grade)
Operating Humidity:5% – 95% RH (non-condensing)
Fire Safety:UL94-V0 flame-retardant FR-4 PCB & enclosure
Processor:32-bit RISC-V single core (ESP32-C3-MINI-1-H4X, 160 MHz)
Wireless & Topology:2.4 GHz 802.11 b/g/n Wi-Fi, dynamic Wi-Fi mesh, Bluetooth 5 (LE)
Control Outputs:2 x independent opto-isolated open-drain channels (OUT1: Reset, OUT2: Power)
Output Trigger Modes:PULSE (millisecond-adjustable pulse), TOGGLE, ON, OFF
Circuit Protection:0.75A resettable PTC fuse on input + artificial-ESR MLCC stability network
Communication Protocols:MQTT with TLS/SSL (JSON telemetry) & UDP broadcast local configuration
Status Indicators:Network status LED (green), output / activity LED (red)

Use Cases

Data Centers & Hosting (Colocation / Dedicated)

Instant remote power cycling for rented servers, eliminating emergency site visits and "remote hands" costs.

Edge AI & Unmanned Sites

Autonomous lock-up recovery for industrial PCs running in factories, highway control cabinets or base stations.

Enterprise IT & On-Premises Server Rooms

Direct intervention from a mobile or web interface when critical ERP, CRM or database servers freeze outside business hours.

Hardware Test & CI/CD Farms

Programmatic reboots and power management of physical server nodes in automated test pipelines.

Business Benefits

Reduced Downtime (MTTR)

Turns service calls and on-site interventions that can take hours into a 5-second remote command.

Lower Total Cost of Ownership (TCO)

Delivers independent per-server power control without expensive, space-consuming switched PDU infrastructure.

Effortless Deployment

Open the chassis, plug it straight into the internal USB header and have it configured within 2 minutes.

Start Managing Your Servers Remotely

Let's talk about Equlon SR USB-O2 for your data center, server room or edge sites. Our team will get in touch to walk you through the details.

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