Description
🔹 Product Overview
The N-Tron 711FX3-ST is an 11-port managed industrial Ethernet switch designed for industrial networking applications that require both copper Ethernet and fiber-optic connectivity. It provides eight 10/100BaseTX RJ-45 copper ports and three 100BaseFX multimode fiber ports with ST connectors, making it suitable for extending Ethernet networks over longer industrial distances. The ST fiber interfaces support a fiber distance rating of up to 2 km.
The switch uses a rugged metal DIN-rail enclosure and supports redundant 10–49 VDC power inputs. Its industrial design supports operation from -40°C to +70°C, with protection features including ESD and surge protection on the network ports.
🔹 Key Features
- 11-port managed industrial Ethernet switch
- 8 × 10/100BaseTX RJ-45 copper ports
- 3 × 100BaseFX multimode fiber ports
- ST-style fiber connectors
- Fiber transmission distance up to 2 km
- Redundant 10–49 VDC power inputs
- 35 mm DIN-rail mounting
- Store-and-forward switching
- SNMP, VLAN, QoS and RSTP management functions
- N-Ring industrial network redundancy
- Operating temperature: -40°C to +70°C
- Rugged metal industrial enclosure
- Supports up to 8,000 MAC addresses
🔹 Technical Data
| Parameter | Specification |
|---|---|
| Brand | N-Tron |
| Model | 711FX3-ST |
| Series | 700 Series / 711FX3 |
| Product Name | Managed Industrial Ethernet Switch |
| Product Type | 11-Port Managed Ethernet Switch |
| Copper Ports | 8 × 10/100BaseTX RJ-45 |
| Fiber Ports | 3 × 100BaseFX Multimode ST |
| Fiber Distance | Up to 2 km |
| Power Supply | 10–49 VDC, redundant inputs |
| Dimensions | 4.3 × 2.4 × 4.6 in / approx. 10.9 × 6.1 × 11.7 cm |
| Weight | Approx. 0.73 kg maximum |
| Mounting | 35 mm DIN Rail |
| Operating Temperature | -40°C to +70°C |
| Storage Temperature | -40°C to +85°C |
| Switching Method | Store-and-Forward |
| MAC Addresses | Up to 8,000 |
| Condition | Verify according to the listed item condition |
The published specifications identify the 711FX3-ST specifically as the ST-connector version with three multimode 100BaseFX fiber ports.
🔹 Industrial Networking Applications
The 711FX3-ST can be used as an industrial communication layer between PLCs, remote I/O, control computers, drives, HMIs, monitoring systems, and other Ethernet-enabled equipment. Its combination of copper and fiber ports is particularly useful when a control network needs to connect local Ethernet devices while extending communication between cabinets or industrial areas through fiber.
Typical applications include:
- Factory automation networks
- PLC and remote I/O communication
- Industrial control cabinets
- Power and utility communication networks
- Transportation and infrastructure systems
- Wind and energy applications
- Water and wastewater control systems
- Industrial Ethernet backbone connections
🔹 Installation & Maintenance
Before installation, verify the exact 711FX3-ST variant and confirm that the available power supply is within the specified 10–49 VDC range. Check the polarity and redundant power connections before energizing the unit.
For fiber connections, use compatible multimode fiber and ST connectors. Inspect connectors for contamination or mechanical damage before connection. Copper Ethernet ports should be checked for appropriate cable category and secure RJ-45 connections.
During maintenance, check the power LEDs, Ethernet link/activity indicators, fiber link status, network configuration, and alarm conditions. The switch supports configurable network-management functions that can assist with monitoring and troubleshooting.
🔹 FAQ
Q1: How many network ports does the 711FX3-ST have?
A: It has 11 ports: eight 10/100BaseTX RJ-45 copper ports and three 100BaseFX ST fiber ports.
Q2: What type of fiber does the 711FX3-ST use?
A: The 711FX3-ST uses multimode 100BaseFX fiber with ST connectors and is rated for distances up to 2 km.
Q3: What is the power supply range?
A: The standard version uses redundant 10–49 VDC power inputs.
Q4: Can it be installed on a DIN rail?
A: Yes. The unit is designed for 35 mm DIN-rail mounting.
Q5: What is the operating temperature range?
A: The specified operating range is -40°C to +70°C.
Q6: Is the 711FX3-ST a managed switch?
A: Yes. It provides industrial network management functions including SNMP, VLAN, QoS, RSTP and other configuration features.
Q7: Is 711FX3-ST the same as the single-mode version?
A: No. The 711FX3-ST uses three multimode ST fiber ports. The 711FXE3 family is used for single-mode fiber configurations.
🔹 Recommended N-Tron Models
- N-Tron 708TX
- N-Tron 708FX2
- N-Tron 708FX2-ST
- N-Tron 716TX
- N-Tron 716FX2
- N-Tron 716FX2-ST
- N-Tron 712FX4-ST
- N-Tron 7018TX
- N-Tron 7018FX2
- N-Tron 7506GX2
These models belong to the broader N-Tron industrial networking product family and can be considered when expanding or replacing legacy industrial Ethernet infrastructure.
