Schneider 110XCA20300 Modbus Plus D-Shell Adapter

Product Description

The 110XCA20300 by Schneider Electric is a compact interface adapter designed to connect AT-type serial ports to Modbus Plus communication networks. It serves as a physical interconnection accessory within legacy Modicon systems, enabling reliable signal adaptation between differing connector standards.

Primarily used in Modicon Momentum and Quantum platforms, this adapter simplifies integration tasks where Modbus Plus communication is required through serial-based interfaces. Although production has ceased, it continues to be supported for maintenance and service applications in installed systems.

Technical Specifications

• Model: 110XCA20300
• Manufacturer: Schneider Electric
• Product Category: Communication Adapter / Connection Accessory
• Connector Configuration:
  • 1 × RJ45 (Modbus Plus network side)
  • 1 × SUB-D 9-pin (serial interface side)
• Interface Type:
  • AT-compatible serial port connection
• Mechanical Characteristics:
  • Height: 64 mm
  • Width: 155 mm
  • Depth: 240 mm
  • Packaging Dimensions:
  • Weight: 0.037 kg
• System Compatibility:
  • Modicon Momentum controllers
  • Modicon Quantum PLC systems
• Compliance & Regulations:
  • Outside EU RoHS scope (industrial legacy classification)
  • Conforms to China RoHS requirements

Functional Description

The 110XCA20300 functions purely as a passive interface adapter, converting connector formats without altering communication protocols. It enables Modbus Plus network access through AT-style serial interfaces by bridging physical connection differences between RJ45 and SUB-D 9 standards.

This makes it particularly useful in retrofit or maintenance scenarios where existing infrastructure must be preserved while ensuring compatibility with Modbus Plus cabling systems.

Application Scenarios

• Maintenance and expansion of Modicon Quantum installations
• Integration of legacy serial devices into Modbus Plus networks
• Replacement of damaged or missing connection adapters in existing systems
• Retrofit projects involving mixed connector standards

FAQ

Q: Does this adapter perform protocol conversion?
A: No, it is a passive device that only adapts physical connectors. Protocol handling must be managed by the connected equipment.

Q: Is there a direct replacement available?
A: Schneider Electric has not released a direct successor. Alternative solutions typically require redesign using newer communication modules.

Q: Can it be used with modern Ethernet-based systems?
A: No, this adapter is specifically intended for Modbus Plus networks and serial interfaces, not Ethernet protocols.

Q: Is it still advisable for new projects?
A: It is generally recommended only for maintaining existing installations due to its discontinued status.