Choosing between two industrial Ethernet switches often comes down to how much network control you need and how much you want to spend. In the industrial networking fieldbus space, the Cisco IE-3000-8TC and the N-TRON 708TX represent two very different answers. The Cisco is a managed switch with a long list of industrial features. The N-TRON is a more direct Ethernet switch aimed at PLC and HMI communication. Here's how to decide which used switch belongs in your setup.
Quick verdict
The Cisco IE-3000-8TC is the switch to choose when you need a managed industrial network device. The N-TRON 708TX is the lower-priced alternative when your industrial networking fieldbus mostly needs straightforward connectivity between PLCs and HMIs.
Comparison table
| Cisco IE-3000-8TC | N-TRON 708TX | |
|---|---|---|
| Price | USD 250.00 | USD 34.99 |
| Relative price | ||
| Condition | Used | Used |
| Model / MPN | IE-3000-8TC | 708TX |
| Type | Managed network equipment | Ethernet switch |
| Notable details | 16 Ethernet (RJ-45) ports, dual DC power inputs, alarm relay, console port, hazardous location rating, -40°C to +60°C, 18-60V DC | Designed for industrial automation, motion control, and PLC/HMI communication |
Where each product wins
- Cisco IE-3000-8TC: The managed switch with the richer feature set, suited to applications that need more control over the network.
- N-TRON 708TX: The lower-cost Ethernet switch for straightforward PLC and HMI communication without a complex setup.
Product notes
Cisco IE-3000-8TC Managed Network Equipment

If you need managed switching in a rugged environment, the Cisco IE-3000-8TC has the tools to deliver. It offers 16 Ethernet (RJ-45) ports, dual DC power inputs (Pwr A / Pwr B), an alarm relay, and a console port for configuration. The unit is rated for hazardous locations and operates from -40°C to +60°C, making it a candidate for demanding fieldbus installations. This used switch has been tested for key functions and may show slight handling scratches. The trade-off is that it does not include accessories and carries the higher price of the two. For an industrial network where uptime and control matter, the Cisco brings the capabilities you need to build a more managed infrastructure.
N-TRON 708TX Industrial Ethernet Switch

At $34.99, the N-TRON 708TX is the lower-cost option for straightforward industrial Ethernet. It's designed for connecting PLCs and HMIs in industrial automation and motion control settings. That focus makes it a sensible choice when your goal is reliable communication between control devices without the overhead of advanced configuration. The trade-off: if your application requires advanced managed switching, you'll need to look at the higher-priced Cisco. For simple links, the N-TRON's lower price and straightforward design are hard to beat.
Final choice by use case
Choose the Cisco IE-3000-8TC if you're building or expanding a managed industrial network with demanding environmental requirements. It costs more, but its feature set justifies the higher price for demanding applications.
Choose the N-TRON 708TX if your main goal is straightforward Ethernet switching between PLCs and HMIs in a less complex automation setup. The lower price makes it an easy pick for basic fieldbus connectivity.