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  • Lifecycle status

    Discontinued / Obsolete by OEM
    Apter Power supports legacy verification, condition review, official documentation, quotation, and migration coordination.

1783-ETAP

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The discontinued 1783-ETAP connects three copper EtherNet/IP ports and supports a Device Level Ring tap role in legacy installations.
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Technical specifications for 1783-ETAP

  • Manufacturer:
    Allen-Bradley
  • Part Number:
    1783-ETAP
  • Product Family:
    Stratix Managed Switches
  • Product Type:
    Three-Port EtherNet/IP Tap
  • Stock:
    1
  • Ethernet ports:
    3 x copper RJ45
  • Network role:
    EtherNet/IP tap for Device Level Ring
  • Supply voltage:
    24 V DC
  • Environmental rating:
    IP20
  • Operating temperature:
    -20…60 °C
  • Relative humidity:
    5…95%, noncondensing
  • Vibration:
    5 g at 10…500 Hz
  • Weight:
    0.18 kg
  • Estimated shipping dimensions:
    13.157 x 3.505 x 12.268 cm
  • Tariff Code:
    Please confirm the destination before shipping
  • Country of origin:
    USA
  • Place of shipment:
    Xiamen,Fujian,China
By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

More Information

Overview Manuals DLR Port Roles Legacy Diagnostics ETAP3T Migration Product Applications

Features:

  • Three-port tap: two ring links and one device path serve a DLR node
  • Legacy topology role: the port assignments preserve the installed ring architecture
  • Documented successor: 1783-ETAP3T is the manufacturer-listed functional replacement
1783-ETAP inserts a non-ring device or local segment into an EtherNet/IP Device Level Ring through a three-port tap arrangement.

Its two ring interfaces carry the resilient path, while the third connection serves the attached equipment and should remain separately identified.

Migration to the current tap changes more than catalog availability, because software, diagnostics, addressing, and physical fit must be reviewed.
Apter Power can review 1783-ETAP topology, Series, port assignment, existing condition, official records, and migration scope before quotation.
Allen-Bradley 1783-ETAP Three-Port EtherNet/IP Tap Manuals, Datasheets, Links
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
  • Ring direction A: retain the documented connection to one adjacent ring node.
  • Ring direction B: preserve the second path to the opposite ring neighbor.
  • Device connection: keep the local equipment port out of the ring-link assignment.
  • LED evidence: capture power, network, and port indications before removal.
  • Ring state: distinguish a local cable fault from a supervisor or ring-wide event.
  • Physical isolation: test one cable or endpoint at a time because the tap has limited local diagnostic depth.
  • Functional successor: evaluate 1783-ETAP3T with its current official instructions.
  • Software boundary: verify that engineering tools support the new tap and diagnostics.
  • Cutover proof: compare supply, wiring, mounting, addressing, and controlled ring recovery.
  • Legacy DLR device attachment: connect a local EtherNet/IP device to an installed ring.
  • Ring expansion point: retain the approved two-direction topology while serving one local path.
  • Managed migration project: document the legacy tap before introducing the current functional replacement.
Description
Legacy Device Level Ring connections are the central role of 1783-ETAP. The three-port EtherNet/IP tap links a device or linear segment to two ring directions while preserving a compact DIN-rail footprint.

Port assignment matters on 1783-ETAP because the two ring interfaces and the device interface do not represent interchangeable network roles. A replacement should retain the documented topology, 24 V DC supply, grounding, and ring-supervisor design.

Rockwell Automation lists 1783-ETAP as discontinued with 1783-ETAP3T as a functional replacement. The newer tap adds Gigabit and diagnostic capabilities, so migration still requires a review of software, addressing, mounting, wiring, and acceptance tests.
Revisions

Revision Part #

Also known as

1783-ETAP Ser A
1783-ETAP/A, Series A, Rev A
Alternative Names
1783ETAP 1783 ETAP ETAP DLR Tap EtherNet/IP 1783-ETAP
Technical notes
1783-ETAP is a legacy three-port DLR tap, and its two ring ports must remain distinct from the device port. Rockwell Automation names 1783-ETAP3T as a functional replacement, not proof of a drop-in exchange; preserve the installed topology and compare software, addressing, dimensions, wiring, and acceptance requirements before approving migration.
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FAQS

The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
Which ports must be distinguished before replacing 1783-ETAP?
Identify both DLR directions and the local device connection from the drawing and cable labels. Photograph the live arrangement before removal so the ring path is not rebuilt through the wrong interface.
Why can a Device Level Ring remain faulted after 1783-ETAP is replaced?
A reversed port assignment, open cable, connector fault, missing power, or supervisor problem can hold the ring abnormal. Prove the two adjacent links and local path separately before changing ring configuration.
Does functional replacement status make the current Stratix 4100 tap a drop-in substitute for 1783-ETAP?
No. It establishes a supported migration path, not automatic equivalence. Compare software support, network settings, physical dimensions, power, cabling, and the documented commissioning procedure.
What should be recorded from 1783-ETAP before an outage?
Capture the full label, Series, LEDs, cable destinations, ring supervisor, supply voltage, mounting, device connection, and current fault state. Those records make rollback and diagnosis much faster.
How should ring recovery be tested after servicing 1783-ETAP?
First prove normal closed-ring operation, then open one approved ring link under controlled conditions and observe recovery and diagnostics. Restore the link and verify that the ring returns to its expected state.
What information helps source 1783-ETAP for an installed legacy system?
Provide catalog, Series, condition requirement, quantity, destination, deadline, ring role, local device type, nameplate photos, and whether migration to 1783-ETAP3T is acceptable.

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