ABB LXN1604-6 3BHL000986P7000 Original 4-Port Gigabit CEX-bus Switch for ABB 800xA Controller Network, Ready In Stock

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Product Overview

ABB LXN1604-6 with part number 3BHL000986P7000 is a factory-original 4-port dedicated gigabit Ethernet switching module customized exclusively for the internal controller communication network of ABB Ability System 800xA DCS. Equipped with four independent industrial-grade RJ45 gigabit ports, this embedded unit acts as the core interconnection hub to build stable CEX-bus communication links between multiple AC800M series controllers, realizing real-time exchange of process control logic, safety interlock signals and multi-CPU synchronization data. Distinguished from generic third-party switches, this ABB native hardware is fully calibrated to match the exclusive CEX-bus protocol of 800xA platform, eliminating compatibility failures, packet loss and network jitter frequently encountered by non-original network devices. All available units are brand-new unopened genuine ABB goods with complete traceable serial numbers and factory communication performance test reports; refurbished, cloned and disassembled counterfeit modules are strictly rejected to safeguard the continuous stable operation of controller networks in power, petrochemical, water treatment and intelligent manufacturing industries. Our warehouse maintains abundant spot inventory to support immediate order dispatch, providing fast delivery and full technical after-sales service for global automation system integrators and factory end users.
In medium and large-scale 800xA automation architecture, multiple PM860, PM861 and PM866 controllers are deployed in separate cabinets to undertake segmented closed-loop regulation and equipment linkage tasks. The four built-in Ethernet ports of LXN1604-6 support flexible star and cascade network topologies, conveniently connecting primary-backup redundant controller pairs, auxiliary control cabinets and safety I/O nodes into a unified deterministic control network. It integrates power conversion and 4-port gigabit switching into one compact backplane plug-in body, simplifying cabinet layout and reducing extra hardware procurement varieties, becoming the standard spare part and core network hardware for new project construction, controller system expansion and old cabinet renovation.

Core Technical Parameters for 4-Port 800xA Controller Network

1. Model Code: LXN1604-6, Material No.: 3BHL000986P7000
2. Port Configuration: 4 × 10/100/1000BASE-T full gigabit industrial isolated RJ45 ports, dedicated for CEX-bus controller interconnection
3. DCS Native Compatibility: Pre-embedded CEX-bus communication firmware, automatic hardware identification by 800xA Control Builder without manual driver installation
4. Redundancy Support: Built-in hardware accelerated HSR & PRP protocols compliant with IEC 62439-3, zero switchover time during single port or cable fault
5. Deterministic Transmission: Hardware fixed-cycle forwarding, microsecond-level low jitter to guarantee synchronized operation of multi-controller logic
6. QoS Traffic Scheduling: IEEE 802.1p multi-layer priority queuing, priority transmission for safety interlock and motion control frames
7. Integrated Power Supply: 85–264V AC wide universal input, stable 24.7V DC / 20A 500W output with overload, short-circuit and overvoltage full protection
8. Installation Method: AC800M rack backplane hot-swappable design, online replacement without powering off controller cabinets
9. Environmental Performance: Operating temperature -40℃ ~ +60℃, IP20 cabinet protection, multi-stage EMI shielding and full-board anti-corrosion conformal coating
10. Reliability & Supply: MTBF over 50,000 hours for 24/7 continuous operation; permanent in-stock supply, 12-month official manufacturer warranty

Core Product Advantages

1. Standard 4-Port Gigabit Layout Meets Multi-Controller Networking Demand

Four independent gigabit ports bring flexible and expandable networking capability for 800xA controller clusters. Users can directly connect 3–4 groups of redundant AC800M controller pairs in star topology within a single cabinet; for larger DCS systems, multiple LXN1604-6 modules can be cascaded to expand the coverage of the controller network. Full gigabit bandwidth avoids data congestion when mass synchronization and interlock data are transmitted simultaneously, ensuring no queuing delay of time-critical control signals between controllers. Each port adopts isolated circuit design to avoid cross-channel signal interference in densely arranged control racks.

2. 100% Original Matching Eliminates Controller Network Compatibility Risks

As official supporting hardware for ABB 800xA controller network, this 4-port switch perfectly fits the CEX-bus communication mechanism of AC800M CPUs. After plugging into the rack backplane, the engineering software automatically identifies hardware information and completes protocol matching, without complicated VLAN and redundancy configuration work required by third-party switches. Genuine internal switching chips maintain stable long-term communication performance, effectively solving common problems of imitation products such as controller offline, random packet loss and synchronization offset of redundant CPU pairs.

3. HSR/PRP Zero-Switchover Redundancy Ensures Uninterrupted Controller Communication

The four Ethernet ports support parallel redundant wiring layout for PRP dual-network architecture and ring topology for HSR. When one port, connecting cable or circuit fails, the redundant channel takes over data forwarding instantly without frame loss or control logic interruption, reaching 99.999% five 9’s ultra-high network availability. This function avoids production shutdown and safety trip accidents caused by single-point communication faults of multi-controller control networks, which is critical for continuous process industrial sites.

4. Hot-Swap In-Stock Design Shortens Project & Maintenance Downtime

Sufficient ready stock removes long production lead times, supporting urgent delivery for emergency spare parts replacement and new project commissioning. Domestic orders can be shipped within 1–3 working days, with global door-to-door express delivery covering all industrial regions worldwide. The hot-swappable plug-in structure allows technicians to replace the 4-port switch online without cutting off cabinet power; all connected AC800M controllers keep normal operation during maintenance, eliminating lengthy production halt losses caused by network equipment overhaul. The integrated power + switching dual-function design saves half of cabinet installation space compared with separate power supply and switch matching schemes.

5. Harsh Environment Adaptability Stabilizes Controller Network Operation

Multi-layer metal EMI shielding circuit resists severe electromagnetic interference generated by on-site frequency converters, large motors and high-voltage equipment, preventing port signal distortion and network jitter. Conformal coating on all circuit boards prevents dust, dampness and weak chemical volatile corrosion in petrochemical, metallurgical and water treatment workshops. Ultra-wide temperature operating range from -40℃ to +60℃ ensures the 4-port Ethernet switch runs stably in freezing outdoor control boxes and high-temperature furnace-side cabinet environments all year round.

Typical Application Scenarios for 800xA Controller Network

This original 4-port CEX-bus gigabit switch is the core networking hardware for all ABB 800xA multi-controller automation projects. In thermal, hydro and nuclear power plant unit control cabinets, it connects boiler, turbine and auxiliary equipment AC800M controllers to build a unified unit coordination network. For oil refineries and natural gas processing stations, it forms redundant communication backbone for ESD safety interlock controller clusters. It is widely deployed in municipal large-scale water supply and sewage treatment systems, automotive intelligent robot assembly workshops, metallurgical continuous casting production lines and pharmaceutical batch reaction control cabinets. Whether for small-scale single-cabinet multi-controller networking or large phased-expanded DCS controller network construction, the 4-port LXN1604-6 realizes reliable interconnection of AC800M controller groups with simple layout and stable performance.

Global Shipping & Complete After-Sales Support

We hold large ready stock of original ABB LXN1604-6 4-port Ethernet switches for instant order shipment. Cooperating with DHL, FedEx, UPS and TNT international express providers, we deliver goods door-to-door to industrial project sites around the globe within 3–7 working days for overseas orders. Each module is packed with original ABB anti-static bags and thick shockproof export cartons to protect internal port circuits and backplane contacts during long-distance transportation. Complete customs clearance documents including commercial invoices and certificates of origin are provided to simplify import declaration procedures for all countries and regions. Every 4-port switch enjoys a full 12-month official manufacturer warranty, and our professional automation technical team offers 7×24-hour online technical guidance covering multi-controller network topology design, HSR/PRP redundant port wiring configuration, CEX-bus synchronization debugging and controller network communication fault diagnosis, delivering full-cycle reliable networking hardware solutions for global ABB 800xA controller network customers.