Allen-Bradley 1756-ENBT ControlLogix Ethernet Module
The Allen-Bradley 1756-ENBT is a ControlLogix EtherNet/IP bridge (10/100 copper, 1st generation), EtherNet/IP bridge module, 10/100 Mbps copper (single port). NJT Automation sources the 1756-ENBT on request; send the part number for a replacement or repair quote.
Quote required. Request a quote below for pricing and delivery.

| Price | On Request Previously sold for $129.99 - $1,199.99 USDAvailability and condition determine final quote. |
| Description | ControlLogix EtherNet/IP bridge (10/100 copper, 1st generation). |
| Shipping | UPS Ground included | Next-Day Air and Worldwide Shipping available at checkout |
| Warranty | 1-year full-function warranty provided by NJT Automation.Warranty detailsThe 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 ($19.50) +2 Years: +25% of product price ($32.50) |
| Returns | 90-day free returns on all purchases.View return policy |
| Exchange | Send us your defective 1756-ENBT after your purchase for a 10% core credit. We also purchase old or damaged parts outright. |
| Availability | Available Level 1This 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. |
| Repairs | 1756-ENBT Mail-In Repair Service |
How the Process Works: |
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What We Offer | We source genuine parts from trusted U.S. channels and stand behind what we sell.
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Part Number Decoder | ControlLogix EtherNet/IP bridge (10/100 copper, 1st generation) 1756ENBT EtherNet/IP bridge module, 10/100 Mbps copper (single port); the original ControlLogix Ethernet bridge (64 TCP / 128 CIP connections).
Decoded from the Rockwell Automation catalog-number structure. Series and firmware revision are printed on the product label, not encoded here. |
Similar Part Numbers |
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Allen Bradley Information | Technical Description Communication Interface Module Single-port AUI/RJ-45 EtherNet/IP 700 mA 5 VDC 3 mA 24 VDC |
Alternate Part Numbers | 1756ENBT |
| Category | ControlLogix |
| Part Number | 1756-ENBT |
| Manufacturer | Allen-Bradley |
Previously sold 1756-ENBT
6 soldNJT Automation has supplied and shipped 6 1756-ENBT ControlLogix EtherNet/IP bridges. Request a quote and we will source another from our supplier network.
Can the 1756-ENBT be repaired?
Yes. NJT Automation offers mail-in repair for the 1756-ENBT, including diagnostic evaluation, component-level repair, and functional testing.
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
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-ENBT failures
Failure patterns we regularly see on ControlLogix EtherNet/IP bridge (10/100 copper, 1st generation) hardware like the 1756-ENBT:
- 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?
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-ENBT? Request a repair quote below. For immediate assistance, text photos of your faulty unit and a description of the symptoms to (414) 331-5954.
All product photos were taken by NJT Automation. Test videos originated from either NJT Automation internally or from repair technicians within our network.
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