General
Air humidity	5–95 % (nicht kondensierend)
Wavelength	1300 nm
Typical range	4–5 km
Power consumption	150 mA @ 20 VDC
MTBF	4.660.534 Stunden (nach Telcordia SR332)
Overcurrent protection
Auto-negotiation
Auto-MDI/MDI-X
Link Fault Pass-Through (LFPT)

The PTC-101-M-SC-LV from Moxa is an industrial Ethernet-to-fiber media converter designed for use in critical applications such as power supply systems and industrial control systems. The device converts 10/100BaseT(X) Ethernet signals via an RJ45 interface into 100BaseFX fiber signals, using an SC connector for multimode fiber. The design is focused on high reliability and operational safety, ensuring compliance with the IEC 61850-3 standard for power supply systems. The robust metal housing, galvanic isolation, and integrated power supply make the converter particularly suitable for use in enclosures and control systems.

Applications

The converter is designed for environments with high electromagnetic interference, vibrations, and extreme temperatures. It is especially suitable for use in power supply, process automation, and industrial networks where high communication availability is required. The operating temperature range of -40 to 85 °C enables use in exceptional environmental conditions, such as outdoor installations or climate-stressed indoor spaces.

Functions and Equipment in Detail

The PTC-101-M-SC-LV features an integrated, reliable power supply that does not require an external power adapter. The power supply supports redundant DC inputs in the range of 20 to 72 VDC, increasing device availability during power failures. A relay output is activated when a power supply failure is detected, which can be used for monitoring systems or alarm functions. The Ethernet interface supports Auto-Negotiation and Auto-MDI/MDI-X, allowing flexible and error-free cabling. The Link Fault Pass-Through (LFPT) function ensures that a fiber connection failure is also indicated on the Ethernet side, simplifying troubleshooting.

Technology Explained Simply

The optical interface uses an SC connector for multimode fiber with a wavelength of 1300 nm. The typical range is 4 to 5 km for fibers with 62.5/125 µm or 50/125 µm. The TX power is between -10 and -20 dBm, and the RX sensitivity is -32 dBm, resulting in a link budget of 12 dB. These values ensure stable transmission over the specified distance. The saturation level is at -6 dBm, indicating the maximum input power at which the device still functions correctly. The integrated power supply consumes 150 mA at 20 VDC, enabling efficient energy use.

Compatibility and Accessories

The converter is compatible with other devices in the PTC-101 series, which also offer Ethernet-to-fiber functionality. The use of SC connectors allows integration into existing multimode fiber infrastructures. The converters can be used in combination with other network devices such as switches, routers, or industrial PCs to create extended or isolated network connections. The power supply is designed for redundant inputs, enabling use with redundant power supply systems in critical installations.

Mounting and Installation

The device is mounted on a DIN rail, enabling simple and standardized installation in enclosures. Mounting requires no additional tools, as the DIN rail is directly integrated into the housing. The quick installation guide included in the delivery supports setup and configuration of the device. Wiring is done via the RJ45 interface for the Ethernet network and the SC connector for the fiber connection.

Operational Advantages

The high operating temperature, galvanic isolation, and integrated power supply reduce susceptibility to interference and increase the device’s lifespan. The redundant power supply and relay output during power failure enhance system availability. Certifications according to EN/UL 62368-1, UL 60950-1, EN 55032/35, CISPR 32, FCC Part 15B, as well as EMS tests according to IEC 61000-4-2 to -4-11, guarantee safety and EMC compliance. The MTBF is 4,660,534 hours according to Telcordia SR332, indicating high reliability over a long period. The 5-year manufacturer’s warranty underscores the product’s quality.

Scope of Delivery

The scope of delivery includes 1 x PTC-101 media converter, 1 x quick installation guide, and 1 x warranty card.