MA-0185-100 Schneider Electric | Modicon Quantum Bus Tap

Product Overview

The Modicon MA-0185-100 Tap is a fieldbus network accessory designed for Schneider Electric Modicon automation systems. It enables reliable connection of a drop cable to a main trunk cable while electrically isolating the drop segment from the network backbone.

This tap uses a nondirectional design, allowing signals to propagate in both directions along the trunk. Moreover, it supports stable data transmission across long distances in demanding industrial environments.

As part of the Modicon Quantum ecosystem, the MA-0185-100 plays a critical role in maintaining network integrity. Therefore, it helps reduce signal reflections, noise interference, and communication failures in distributed control architectures.

Technical Specifications

Product Type
Fieldbus Tap Connector

Model
MA-0185-100

Series
Modicon Quantum

Function
Connects drop cable to trunk cable in industrial fieldbus networks

Impedance
75 Ω

Frequency Range
100 kHz to 30 MHz

Tap Loss
14 dB ±0.5 dB

Trunk Insertion Loss
0.8 dB maximum

Trunk Return Loss
≥26 dB

Tap Return Loss
≥18 dB

Ports
One drop port, two trunk ports

Connector Type
F connectors, 3/8-32 threads, class 2B-0

Connector Torque
Up to 90 in/lb

Center Contact Grip
24 gauge solid conductor after repeated insertion of 16 gauge conductor

Electrical Sealing
RFI and EMI sealed

Operating Temperature
–40 °C to +60 °C

Humidity Rating
Up to 95% at 85 °C

Compatibility
Modicon Quantum automation platforms

FAQ

What is the purpose of the MA-0185-100 tap?
It connects a drop cable to a trunk cable while isolating the drop from the main network.

Is the MA-0185-100 directional?
No, it is nondirectional and allows signal flow in both trunk directions.

Which automation platform supports this tap?
It is designed for Schneider Electric Modicon Quantum fieldbus networks.

Is this product still available for new installations?
The product is discontinued for new sales, but service and spare parts remain available until 2030.

What type of connectors does the tap use?
It uses F connectors with 3/8-32 threads and controlled torque specifications.