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Allen-Bradley 1756-EN2TRE ControlLogix Ethernet Module

The Allen-Bradley 1756-EN2TRE is a ControlLogix Ethernet Module. NJT Automation sources the 1756-EN2TRE on request; send the part number for a replacement or repair quote.

Quote required. Request a quote below for pricing and delivery.

Allen-Bradley 1756-EN2TR 2024 Allen Bradley Ser C ControlLogix Ethernet Module -Sealed Surplus – front view
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Price
On Request
Availability and condition determine final quote.
DescriptionAllen-Bradley 1756-EN2TRE ControlLogix Ethernet Module (ControlLogix Module). Key features: Dual-port Ethernet/IP bridge, supports DLR (Device Level Ring) and linear topologies, 10/100 Mbps data rate.
ShippingUPS Ground included | Next-Day Air and Worldwide Shipping available at checkout
Warranty1-year full-function warranty provided by NJT Automation.
Warranty details

The original Allen-Bradley warranty does not apply to pre-owned units. Full warranty coverage is provided directly by NJT Automation. If you have any issues we can usually swap your unit next-day air (based on inventory)-no waiting weeks for a repair.

Included: 1 Year
+1 Year: +15% of product price
+2 Years: +25% of product price
View Full Warranty Policy
Returns90-day free returns on all purchases.View return policy
Exchange

Send us your defective 1756-EN2TRE after your purchase for a 10% core credit. We also purchase old or damaged parts outright.

Availability
Available Level 1

This part is available through our Level 1 supplier network. Request a quote to confirm quantity, price, and next-day shipping options.

Inventory Level 1 RFQ

Level 1 parts come from vetted US suppliers we have worked with for years. Each unit is checked before it ships, so counterfeits, repackaged items sold as new, and worn-out equipment do not reach you. Every part carries the same NJT warranty and return policy as our own stock.

Request QuoteLearn more about Inventory Levels
Repairs

1756-EN2TRE Mail-In Repair Service

How the Process Works:

  1. Submit Your RFQ: Complete the request-for-quote (RFQ) form with your exact requirements.
  2. Receive a Quote: We respond ASAP - within 1 hour during business hours.
  3. Approve and Pay: Agree to the quoted price, and we will issue an invoice payable via credit card or your preferred method.
  4. Direct Shipping: Our normal shipping time is 3-5 business days, during which we thoroughly inspect and certify items to meet our high standards. If you request next-day air delivery, the item will be sent directly to you and arrive the following business day. Please note: These items are NOT available for local pickup at NJT Automation's location.

What We Offer

We source genuine parts from trusted U.S. channels and stand behind what we sell.
  • Our network has millions of parts ready to be delivered now.
  • Complete Transparency: Clear information on item availability.
  • Well-vetted components from trusted suppliers sourced from the USA.
  • Technical Support: Assistance, troubleshooting and hardware repairs.
  • Minimal Markup: The best sourcing service at a minimal cost.
  • Quick Delivery: Fast access to the parts you need to get your machines back up and running.
  • Dropship available • No branding on packaging

Allen Bradley Information

Technical Description
Allen Bradley ControlLogix Communication Module 1756-EN2TRE Key Features/Specifications: Dual-port Ethernet/IP bridge, supports DLR (Device Level Ring) and linear topologies, 10/100 Mbps data rate
Lifecycle: Active — verify current status with the manufacturer

Alternate Part Numbers

1756EN2TRE
CategoryControlLogix
Part Number1756-EN2TRE
ManufacturerAllen-Bradley

Can the 1756-EN2TRE be repaired?

Yes. NJT Automation offers mail-in repair for the 1756-EN2TRE, including diagnostic evaluation, component-level repair, and functional testing.

NJT Managed Repair

One vendor. One warranty. NJT manages the entire process.

  • 1-year full-function NJT warranty, with 2- and 3-year options available
  • Rush service available for production-critical repairs
  • No evaluation or diagnostic charges
  • No repair, no charge
  • Pre-paid UPS shipping label provided for sending your unit in
  • $650 minimum repair charge, shipping included both ways
Get an NJT Repair Quote

Looking for another option? For lower-cost repairs or if you prefer to work directly with an independent repair specialist, compare bids through RepairMode. RepairMode providers operate independently and set their own pricing and warranty terms.

Find a PLC repair specialiston RepairMode.com ↗

Common 1756-EN2TRE failures

Failure patterns we regularly see on ControlLogix EtherNet/IP module hardware like the 1756-EN2TRE:

  • Module drops all CIP connections under load and recovers only after a power cycle
  • Ethernet port failure: no link LED, or link flapping with a known-good cable and switch port
  • Solid red OK LED at power-up (module hardware fault) or module not seen in RSLinx
  • Overheating when the module runs near its connection limit in a sealed enclosure
  • Corrupted firmware after an interrupted ControlFLASH update: module stuck in boot
  • Scrolling display / IP address display blank while the module still passes traffic

Repair or replace?

ReplaceA ControlLogix Ethernet Module holds little more than a network address, so a replacement 1756-EN2TRE drops in with almost no setup. Replace it when the network is down or the module is physically damaged. The 1756-EN2TRE is not shelf stock, so sourcing time is part of the repair-or-replace decision.
RepairRepair makes sense on the 1756-EN2TRE when the failure is a connector, port or power-section fault on an otherwise sound board, or when you have several failing modules and want them returned as tested spares. The two 1756-EN2TRE symptoms we see most often are “Ethernet port failure” and “Overheating”. If a replacement is already installed, repairing the failed 1756-EN2TRE gives you a tested spare on the shelf for the next failure. Repaired 1756-EN2TRE units are function-tested before return and carry a 1-year warranty.

Why Choose Our Repair Service?

  • ■ Rush turnaround available, with 24-hour emergency service on some models
  • ■ 1-year full-function warranty, with 2- and 3-year extended options
  • ■ No evaluation or diagnostic charges
  • ■ Free UPS shipping label available
  • ■ "Unrepairable" is not an option
  • ■ Thousands of successful Allen-Bradley restorations

Request a Repair Quote

Ready to repair your 1756-EN2TRE? Request a repair quote below. For immediate assistance, text photos of your faulty unit and a description of the symptoms to (414) 331-5954.

Start Your Repair Today

All product photos were taken by NJT Automation. Test videos originated from either NJT Automation internally or from repair technicians within our network.

Still have questions?

Find answers to shipping, warranties, repairs, and more.

The 1756-EN2TRE is available in Unused surplus / Refurbished / Used condition. We can quote this part in unused surplus, refurbished, or used condition depending on availability and your preference. Specify your requirement in the RFQ.
This 1756-EN2TRE is sourced on request, so sourcing and quote timelines apply. Request a quote and we'll confirm availability and lead time. Many parts can be sourced within a few business days through our Level 1 supplier network.
Yes. UPS Next Day Air is available at checkout for the 1756-EN2TRE. Place your order before 5:00 PM Central on a business day and your in-stock item ships the same day for next-business-day delivery.
Yes. Once your 1756-EN2TRE has been sourced and is ready, free local pickup is available at NJT Automation, 2122 N Prospect Ave, Milwaukee, WI, during business hours.
NJT Automation

NJTAutomation

Industrial Electronics

Supply & Repair, Milwaukee WI

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Products sold by NJT Automation may be surplus inventory, discontinued models, older series, or units with earlier manufacturing date codes than those currently available from the OEM or its authorized distribution network. As NJT Automation is not an authorized distributor, manufacturer warranties, support programs, and other OEM services may not apply. Any warranty provided is solely that of NJT Automation, where applicable.

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