Allen-Bradley 1783-ETAP — EtherNet/IP Network Tap | Stratix Industrial Ethernet Platform
Engineering Background
The Allen-Bradley 1783-ETAP is a passive EtherNet/IP network tap engineered by Rockwell Automation for non-intrusive, real-time traffic monitoring in industrial control environments. Designed to operate within the Stratix industrial Ethernet ecosystem, it enables procurement engineers and network architects to capture full-duplex 100 Mbps traffic without disrupting live production networks — a critical requirement in continuous-process and safety-critical automation systems.
Product Positioning
The 1783-ETAP occupies a specialized niche between managed switches and protocol analyzers: it provides a dedicated, always-on monitoring port that feeds diagnostic tools (Wireshark, Logix Designer, FactoryTalk Diagnostics) without adding latency or creating a single point of failure on the primary data path. It is the preferred tap solution for Rockwell Automation-certified system integrators deploying EtherNet/IP on ISO/IEC 62443-compliant architectures.
Complete Technical Specifications
| Part Number | 1783-ETAP |
| Manufacturer | Allen-Bradley / Rockwell Automation |
| Product Series | Stratix Industrial Ethernet |
| Function | Passive EtherNet/IP Network Tap |
| Network Protocol | EtherNet/IP (CIP over Ethernet) |
| Port Speed | 10/100 Mbps, Full-Duplex |
| Monitoring Port | 1 × RJ45 (aggregated TX+RX output) |
| Line Ports | 2 × RJ45 (inline, pass-through) |
| Tap Type | Passive copper tap (no active switching) |
| Power Supply | 24 VDC (18–32 VDC range) |
| Power Consumption | ≤ 3 W |
| Operating Temperature | 0 °C to +60 °C |
| Storage Temperature | −40 °C to +85 °C |
| Relative Humidity | 5–95% non-condensing |
| Mounting | 35 mm DIN rail |
| Enclosure Rating | IP20 |
| Dimensions (W×H×D) | Approx. 45 × 99 × 114 mm |
| Weight | ~1,200 g (with packaging) |
| Certifications | UL, CE, cUL, RCM, EAC |
| EMC Compliance | IEC 61000-4 series |
| MTBF | > 500,000 hours (per Bellcore TR-332) |
| Firmware | Field-upgradeable via USB |
Proven Application Environments
- Automotive Assembly Lines — Non-intrusive monitoring of EtherNet/IP I/O traffic between PLCs and servo drives without halting production.
- Oil & Gas SCADA Networks — Passive tap on critical pipeline control segments where any active device insertion is prohibited by SIL-2 procedures.
- Pharmaceutical Batch Control — Real-time packet capture for 21 CFR Part 11 audit trails and network validation (IQ/OQ/PQ).
- Water Treatment Facilities — Continuous network health monitoring on isolated OT segments with no impact to SCADA polling cycles.
- Power Generation & Utilities — Deployed alongside Stratix 5700/5400 switches for NERC CIP-compliant network visibility.
- Food & Beverage Processing — Washdown-adjacent panel installations requiring compact DIN-rail form factor and wide temperature tolerance.
Engineering Advantages
- Zero Network Impact: Passive copper tap architecture introduces no latency, jitter, or packet loss on the monitored segment — unlike SPAN ports on managed switches.
- Full-Duplex Capture: Simultaneously captures TX and RX streams, aggregated to a single monitoring port for complete bidirectional visibility.
- Fail-Safe Pass-Through: Loss of power does not interrupt the primary network path — the inline ports remain connected via passive relay.
- Rockwell Ecosystem Integration: Natively recognized by FactoryTalk Network Manager and Studio 5000 Logix Designer for topology visualization.
- Compact DIN-Rail Form Factor: Fits standard 35 mm DIN rail in existing control panels without requiring additional enclosure space.
- Wide Input Voltage Range: 18–32 VDC accepts standard 24 VDC industrial power supplies with tolerance for voltage sag events.
System Architecture & Signal Flow
The 1783-ETAP is inserted inline on an EtherNet/IP segment between any two network nodes (e.g., PLC ↔ I/O adapter, switch ↔ drive). The two line ports (Port A and Port B) pass traffic transparently in both directions. Internally, the tap splits the electrical signal and aggregates both TX and RX streams onto the monitoring port (Port M), which connects to a laptop running Wireshark, a protocol analyzer, or a FactoryTalk Diagnostics server.
Signal flow: Node A ↔ [Port A | 1783-ETAP | Port B] ↔ Node B with Port M → Monitoring Host receiving a copy of all traffic. No IP address or MAC address is assigned to the tap itself — it is completely transparent to the network.
Sourcing & Quality Verification
- All units sourced through authorized Rockwell Automation distribution channels or verified surplus with full traceability documentation.
- Each unit undergoes incoming inspection: visual check, label verification (Rockwell holographic seal), power-on functional test, and port continuity verification.
- Firmware version confirmed and documented prior to shipment.
- Counterfeit-risk mitigation: serial number cross-referenced against Rockwell Automation’s product authentication portal where applicable.
- Packaging: original Rockwell Automation anti-static packaging retained where available; otherwise repackaged in ESD-safe materials with inspection report enclosed.
Procurement Process
- Step 1 — Inquiry: Submit your PO number, required quantity, and delivery timeline via the contact details below or through the store checkout.
- Step 2 — Quote & Lead Time: We confirm stock availability and issue a formal quotation within 1 business day (HKT).
- Step 3 — Order Confirmation: Payment via T/T bank transfer, PayPal, or credit card. Pro-forma invoice issued upon request.
- Step 4 — Inspection & Dispatch: Unit inspected, photographed, and dispatched via DHL Express / FedEx with full tracking. Typical lead time: 3–7 business days ex-stock.
- Step 5 — Documentation: Commercial invoice, packing list, and test report provided. Certificate of Origin available on request.
Technical FAQ
Q: Does the 1783-ETAP support Gigabit Ethernet?
A: No. The 1783-ETAP is rated for 10/100 Mbps (Fast Ethernet) only. For Gigabit EtherNet/IP segments, consult Rockwell Automation for the appropriate tap solution.
Q: Will the tap interrupt my network if it loses power?
A: No. The fail-safe relay design maintains the inline pass-through connection regardless of power state. Only the monitoring port (Port M) becomes inactive when power is lost.
Q: Can I use this with non-Rockwell EtherNet/IP devices?
A: Yes. The 1783-ETAP is protocol-agnostic at the physical layer and will tap any 10/100 Mbps Ethernet segment, regardless of the upper-layer protocol or device vendor.
Q: Is an IP address required for the tap?
A: No. The 1783-ETAP is a Layer 1 passive device with no IP stack. It does not appear on the network and requires no configuration.
Q: What is the warranty?
A: Konmask.com provides a 90-day functional warranty on all units. Extended warranty and on-site support arrangements available upon request.
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