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Communications (Ethernet and Serial)
Practical Industrial Control and Information Communications
Use AutomationDirect’s industrial communication products to provide a link via phone, Ethernet or serial connection to your industrial process controllers or other devices.
- Serial products include cable kits, RS-232/422 network adapters and converters and an industrial modem.
- Ethernet products range from Ethernet patch cables, unmanaged Ethernet switches, Ethernet gateways, and configuration kits to Ethernet adapter cards for your PC.
Coordinated control
Communication links between controllers can be used to create robust, modular control systems. Sharing data between separate operations enables each local controller to better contribute to the system's overall performance. Whether separated by feet or by miles, your controllers can have access to what’s going on in the environments around them.
Remote support
Remotely access machines or process controllers for troubleshooting, configuring, updating or monitoring your systems. Whether it’s your production facility or your controller in a customer’s facility, having convenient and secure remote access ensures maximum production with minimal support costs.
Commercial Grade vs. Industrial Grade Communication Products
Before you take a risk with commercial grade products to save a few bucks, ask yourself how much just one field failure will cost you in service time, reputation, and money.
- Communication products not designed to operate in the heat, cold, or humidity of an industrial site, or products not ruggedized for power spikes and vibration don’t have to quit working to cause headaches.
- Communication products, along with cables and connectors, are notorious for causing those irritating intermittent control system bugs that inevitably absorb many man-hours of troubleshooting efforts over a few dollars in parts.
Sometimes commercial grade will do, but for those times when you and your customer need rock-solid reliability, AutomationDirect has the best values in industrial communication products.
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Industrial Communication Products

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Ethernet
- Cat5e Ethernet Patch Cables
- Unmanaged Ethernet Switches (5-9 ports)
- Ethernet-to-Fiber Optic Converters
New! ... SC fiber optic connectors in addition to ST versions
- Ethernet Modbus Gateway ... New!
- Ethernet PC Network Card
- Ethernet Configuration Kit
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Serial
- Serial Converters & Isolators
- Serial Connection Kits
- Serial Port Connectors & Serial Adapters
- Telephone Modem (good for use as PLC modem)
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Fiber Optic Connectivity
- Ethernet-to-Fiber Optic Converters
New! ... SC fiber optic connectors in addition to ST versions
- PLC Fiber Optic Ethernet Modules
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USB Connectivity
- USB-to-Serial Converters
- USB Flash Drives
- USB Cables
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