Industrial Serial Connectivity & Gateways
Bridge the IT/OT Divide: Connect Legacy Serial Devices to Modern IP Networks
Stop tearing out functional field equipment. Valtoris engineers rugged, EMI-immune hardware designed to extend, isolate, and translate legacy RS232, RS485, and RS422 data for instant integration into modern SCADA and Cloud IoT platforms.
Determine Your Network Architecture
From pure physical layer isolation to advanced edge-computing and protocol translation, choose the path that matches your integration goal.
RS485 Hubs & Splitters
Building a massive sensor network? Active RS485 repeaters safely split one master line into multiple branches, providing 2500V optical isolation to eliminate ground loop failures.
Serial to Ethernet Servers
Connect serial devices directly to your facility’s Ethernet. Features Virtual COM port mapping for legacy software and transparent Modbus RTU bridging to your local SCADA.
Protocol Edge Gateways
Stop decoding raw HEX data. Our edge gateways actively poll Modbus meters, convert the data into structured JSON objects, and push it securely to AWS, Azure, or private MQTT brokers.
The Valtoris Serial Connectivity DNA
Whether you deploy a passive hub or a smart MQTT gateway, every Valtoris serial product shares the same uncompromising industrial foundation.
Industrial Grade Isolation
Select models are equipped with up to 3000V optical isolation and 2KV surge protection. We physically block electrical noise from traveling back to your expensive master PLCs.
Harsh Environment Rated
Designed for the realities of the factory floor. Fanless aluminum and SECC metal enclosures ensure reliable 24/7 operation from extreme cold to +85°C heat.
Universal 3-in-1 Interfaces
Standardize your inventory. Most gateways feature universally selectable RS232, RS485, and RS422 interfaces via robust industrial terminal blocks or DB9 connectors.
Featured Serial Hardware Platforms
The most deployed industrial connectivity solutions chosen by our system integrators.
4CH-HUB-RS485
Active 1-to-4 RS485 splitter. Features 2500V optical isolation to eliminate ground loops in star topologies.
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8CH-HUB-RS485
Heavy-duty 8-port RS485 hub for large-scale data acquisition. Auto-adaptive baud rates up to 460800 bps.
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1CH-RS485-ETH
The standard DIN-rail Modbus RTU to TCP server. Bridges single RS485 field devices to local Ethernet LANs.
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2CH-RS485-ETH (V)
Dual-port server with built-in 1500V isolation. Ideal for VFD cabinets where severe electrical noise causes dropouts.
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VT-DTU500 Cellular
4G LTE edge gateway. Polls serial data locally and pushes structured JSON payloads via secure MQTT.
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VT-WF100 WiFi Gateway
Cut the cables. Industrial 3-in-1 serial bridge via 2.4GHz Wi-Fi. Features full Modbus TCP/RTU translation.
View Specifications →Design Your OT Network with Confidence
Not sure if your specific topology requires a simple isolated hub or a full MQTT edge gateway? Our application engineers will review your diagram and recommend the exact hardware.
Consult Our Engineering TeamFrequently Asked Connectivity Questions
What is the difference between a Hub, a Device Server, and a Gateway?
A:
• RS485 Hub: A purely physical layer device. It regenerates and splits a single RS485 line into multiple branches to fix distance limitations and ground loops.
• Device Server: Takes serial data (RS485/232) and puts it onto an Ethernet network. It relies on a host PC (using Virtual COM software) or a SCADA system to understand the data.
• Protocol Gateway: A smart edge device. It actively “reads” the Modbus data, translates it, reformats it (e.g., into JSON), and pushes it to modern platforms like AWS or Azure.
Do I need to rewrite my legacy PLC code to use a Serial Device Server?
A: No. If your host software (like an old SCADA system) only understands direct COM ports (COM1, COM2), we provide Virtual COM (VirCom) software. It captures the network data and creates a virtual COM port on your Windows machine, allowing your legacy software to function without a single line of code changed.
When should I absolutely mandate isolated hardware (e.g., 2500V Isolation)?
A: You must use isolated models when your serial cables travel between different buildings, or when they connect to equipment with heavy voltage switching, such as Variable Frequency Drives (VFDs) and pump motors. Isolation physically blocks voltage spikes from traveling down the communication line and destroying your main controller.
How do I resolve polling collisions when multiple masters query the same RS485 slave?
A: Standard converters will crash the RS485 bus if two SCADA systems poll simultaneously. You need a device with Smart Caching (available on our Caching Hubs and advanced Ethernet Gateways). The gateway handles the polling locally, caches the response, and instantly serves the data to multiple TCP masters without bus collisions.
