General
Wavelength	1310 nm
Overcurrent protection

The Moxa PTC-101-S-ST-HV is an industrial Ethernet-to-fiber media converter that connects a 10/100BaseT(X) Ethernet interface via an RJ45 connector with a 100BaseFX single-mode fiber connection via an ST connector. The device is part of the IEC 61850-3-compliant product series and designed for use in demanding environments such as power distribution systems, switchgear, or substations. It enables data transmission over long distances with high reliability and is designed for operation in smoke- and dust-laden as well as temperature-critical environments.

Applications
This media converter is suitable for industrial networking applications where stable and secure data transmission over fiber is required. Typical use cases include networking of substations, communication between switchgear and central control systems, and integration of field devices into existing Ethernet infrastructures. Compliance with the IEC 61850-3 standard makes the device particularly suitable for use in the power supply industry, where high requirements for electromagnetic compatibility, temperature resistance, and operational reliability apply.

Functions and Features in Detail
The device features an integrated power supply supporting an input voltage of 20 to 72 VDC. The power supply is redundantly designed, ensuring higher availability. In the event of a power failure, an integrated alarm relay is activated, enabling external warning. Additionally, an overcurrent protection is integrated to protect the device from damage due to excessive current load. The Ethernet interface supports Auto-Negotiation and Auto-MDI/MDI-X, allowing connection to various network devices without manual configuration.

Technology Explained Simply
Fiber communication is achieved via an ST connector with single-mode fiber (9/125 µm) at a wavelength of 1310 nm. The optical power ranges from 0 to -5 dBm, and the receiver sensitivity is -34 dBm, enabling a link budget of 29 dB. The typical transmission distance is up to 40 km, with saturation at -3 dBm. These values ensure reliable data transmission over long distances with minimal signal distortion. The use of single-mode fiber ensures high bandwidth and low attenuation, which is critical for industrial applications with high signal quality requirements.

Compatibility and Accessories
The media converter is designed for use in existing Ethernet networks and is compatible with standard 10/100BaseT(X) and 100BaseFX fiber connections. The use of ST connectors enables easy integration into existing fiber infrastructures. Compliance with IEC 61850-3 and other international standards ensures interoperability with other devices in the power supply industry.

Mounting and Installation
The device is mounted on a DIN rail, enabling flexible and standardized installation in enclosures. The housing is made of metal, providing high mechanical stability and protection against external influences. Mounting requires no additional tools, with the DIN rail ensuring secure fastening. Dimensions are 152.15 mm (width) × 126.46 mm (height) × 66.65 mm (depth), allowing the device to fit in standardized enclosures.

Operational Advantages
The device can operate over a wide temperature range of -40 to +85 °C, making it suitable for use in extreme environments. Humidity levels from 5 to 95 % (non-condensing) are also supported. The high MTBF of 4,660,534 hours (according to Telcordia SR332) demonstrates the device's high reliability. The integrated redundant power supply and alarm relay enhance operational safety and enable quick response to disturbances. Compliance with international standards such as IEC 61850-3, EN/UL 62368-1, and FCC Part 15B ensures adherence to safety and EMC requirements.

Certifications and Environmental Conditions
The device meets the requirements of safety standards EN/UL 62368-1 and UL 60950-1. EMC certifications according to EN 55032/35 and FCC Part 15B, as well as electromagnetic compatibility tests according to IEC 61000-4-2/-3/-4/-5/-6/-8/-11, ensure reliable operation in electromagnetically noisy environments. Environmental tests according to IEC 60068-2-1/-14/-3 and vibration tests according to IEC 60068-2-6 confirm robustness against temperature changes, humidity, and mechanical stress. Storage and operating temperature range is -40 to +85 °C, enabling broad applicability in various climate zones.

Scope of Delivery
The scope of delivery includes the device PTC-101-S-ST-HV, a quick start guide, and a warranty card.