Schneider Electric ASMBKT185 Modbus Plus Line Terminator

Product Overview

The Schneider Electric ASMBKT185 serves as a critical passive component for maintaining signal integrity within Modbus Plus networks. Designed specifically for the Modicon Quantum, Premium, and Momentum automation platforms, these line terminators prevent signal reflection by matching the characteristic impedance of the transmission cable. This ensuring clean, error-free data communication across industrial distributed I/O systems. We supply the ASMBKT185 as 100% brand new, original factory hardware, sold in a convenient set of two to secure both ends of your network segment.

Technical Specifications

The ASMBKT185 integrates seamlessly with standard Modbus Plus junction boxes and trunk cables.

• Communication Network Type: Modbus Plus

• Product Type: Line Terminator (Impedance Matching)

• Destination: Junction Box (Compatible with 990NAD23000)

• Quantity per Set: 2 Units

• Range Compatibility: * Modicon Momentum platform

• Modicon Premium platform

• Modicon Quantum platform

• IP Degree of Protection: IP20

• Product Weight: 0.26 kg

• Package Dimensions: 1.7 cm (H) x 7.0 cm (W) x 9.5 cm (L)

Engineering Advantages

• Elimination of Signal Reflection: High-speed Modbus Plus data packets often reflect off the open ends of a trunk cable, creating "ghost" signals that corrupt data. The ASMBKT185 absorbs these redundant signals at the physical layer, ensuring the PLC processor receives clear, distinct pulses.

• Broad Platform Interoperability: This terminator supports the entire Modicon family. Whether you manage a legacy Quantum rack or a modern Premium architecture, the ASMBKT185 provides the universal impedance matching required for the 1 Mbps Modbus Plus protocol.

• Rapid Junction Box Integration: Engineers designed this part for direct insertion into the 990NAD23000 junction box. The plug-and-play mechanical fit reduces installation time during commissioning and eliminates the need for custom soldering or resistor splicing in the field.

• Optimized for Multi-Drop Topologies: Modbus Plus supports up to 64 nodes per segment. The ASMBKT185 stabilizes these long-distance cable runs, particularly in environments with high electromagnetic interference, by maintaining the required voltage levels across the differential pair.

FAQs

• Where exactly should I install the ASMBKT185?

  You must install one terminator at the first physical node and one at the final physical node of the Modbus Plus trunk cable. Leaving an end unterminated will likely cause "Token Rotation" errors or intermittent communication loss.

• Can I use a standard resistor instead of the ASMBKT185?

  While the terminator contains a resistor, the ASMBKT185 provides the correct mechanical form factor and specialized impedance ratings required for Schneider junction boxes. Using non-standard components increases the risk of loose connections and network downtime.

• Is this product sold as a single unit?

  No, the ASMBKT185 comes as a Set of 2. This ensures you have exactly what is needed to terminate both ends of a standard network segment in one package.

• How do I know this is a brand new Schneider part?

  We ship every ASMBKT185 in its original Schneider Electric "PCE" packaging. Each set remains factory-sealed and includes the original manufacturer markings to guarantee it has never been used or refurbished.