Industrial Fiber Converters
Extend Critical Networks Over 20km & Eliminate EMI Interference
Copper cables are limited to 100m and are very susceptible to electrical noise on the factory floor. Valtoris single-mode fiber optic media converters convert your Ethernet or RS485/232 serial signals to lossless light pulses, giving you rock-solid data links in the most punishing industrial environments.
Ethernet to Fiber Converters
Overcome the standard 100m Ethernet limit. Seamlessly bridge 10/100M RJ45 copper networks to fiber optics for expansive campus networks, substations, and high-def IP surveillance systems.
Serial to Fiber Converters
Achieve absolute EMI immunity for your critical RS485, RS232, and RS422 control loops. We offer zero-delay transparent hardware decoding or advanced Modbus TCP/IP gateway fiber solutions.
The Valtoris Fiber DNA
Whether you are transmitting IP packets or Modbus RTU data, every Valtoris fiber converter is engineered with the same industrial-grade resilience.
Complete EMI Immunity
Fiber optic technology is non-conductive and immune to ground loops, lightning strikes, and RFI/EMI, guaranteeing data integrity in high-voltage environments.
Single-Mode Single-Fiber
Maximize your infrastructure budget. Our standard SC interface models achieve up to 20km ranges using just a single strand of fiber for bidirectional communication.
Harsh Environment Ready
Designed for the field, not the office. Featuring -40°C to 85°C extreme operating temperatures, wide 9~24V DC inputs, and rugged metal DIN-rail enclosures.
Featured Optical Media Converters
From zero-delay transparent serial transmission to advanced Modbus network gateways.
VT-FB800 Media Converter
Transparent 10/100Base-TX RJ45 to 100Base-FX optical conversion. Plug-and-play network extension up to 20km for IP cameras and remote LANs.
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VT-FB820 Zero-Delay Modem
Pure physical layer extension. Uses serial hard decoding technology for near zero-delay RS232/485/422 transmission. No IP configuration required.
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VT-FB810 Fiber Serial Server
More than a modem. Converts serial data to TCP/IP packets directly onto the fiber network. Includes VirCom virtual COM software for legacy SCADA integration.
View Details →Not Sure Which Optical Converter Fits Your Architecture?
Whether you need A/B end pairing for a simple RS485 loop, or a direct TCP/IP integration into an existing optical switch network, our engineers can guide you to the exact model.
Talk to an EngineerFrequently Asked Questions
Q1: Do I need an A-End and B-End converter? Why can’t I use two identical units?
A: Valtoris industrial fiber converters utilize “Single-Mode Single-Fiber” technology to save cable costs. This means transmission and reception happen on different light wavelengths over a single glass core. Therefore, they must be used in matched pairs. For example, if unit A transmits at 1310nm and receives at 1550nm, unit B must do the exact opposite (transmit at 1550nm, receive at 1310nm) to establish a handshake.
Q2: What is the difference between the VT-FB820 and the VT-FB810 for serial data?
A: The VT-FB820 is a transparent physical-layer modem. It uses hardware decoding for zero-delay transmission—ideal for strict timing protocols. It has no IP address and is purely plug-and-play between two endpoints.
The VT-FB810 is an advanced Serial Device Server. It actively converts RS485/232 data into standard TCP/IP packets. This allows a single serial device to connect directly into a larger fiber-optic LAN switch, allowing a remote PC (using virtual COM software) to read the data via IP routing.
Q3: Will these converters work with my existing fiber optic switch?
A: Yes, but only if you select the correct model. If you are extending a standard LAN, the VT-FB800 (Ethernet to Fiber) can connect to a third-party optical switch. If you are connecting serial devices, you must use the VT-FB810 (which outputs standard network TCP/IP packets over fiber). Always verify the wavelength (1310nm vs 1550nm) of your existing switch port to choose the matching A or B end unit.
Q4: Can fiber media converters be installed outdoors or in high-voltage substations?
A: Yes, this is exactly what they are built for. Because optical fiber is made of glass, it is completely non-conductive. This physically isolates your control equipment from the massive ground potential rise and EMI found in substations. Furthermore, our units feature a heavy-duty SECC metal enclosure and operate flawlessly from -40°C to +85°C, making them perfect for unconditioned outdoor NEMA enclosures.
