Allen-Bradley 1715-A2A Redundant I/O Adapter Base Unit

Product Description

The 1715-A2A by Allen-Bradley is a DIN rail-mounted adapter base designed for the Bulletin 1715 Redundant I/O platform. It serves as the physical and electrical foundation for building fault-tolerant distributed I/O systems, supporting redundant communication architectures in critical process applications.

This unit provides two adapter slots and is engineered to interface with Ethernet/IP adapters such as the 1715-AENTR. It enables scalable system expansion, supporting up to 24 I/O modules within a redundant configuration. The compact design, combined with robust construction and IP20 protection, makes it suitable for installation in standard industrial control cabinets.

The 1715-A2A integrates dual Ethernet ports for network redundancy and ensures consistent operation in demanding environments with wide temperature tolerance.

Key Technical Specifications

System Architecture

• Module Type: 2-Slot Adapter Base Unit

• Supported I/O Modules: up to 24 (within system architecture)

• Compatible Adapter: 1715-AENTR Ethernet/IP Adapter

• Network Protocol: Ethernet/IP

Communication Interfaces

• Ethernet Ports: 2 × RJ45 (10/100Base-T)

• Connector Type: Shielded RJ45

• Recommended Cable Size: up to 2.5 mm² equivalent

Electrical Characteristics

• Maximum Power Dissipation: 8 W

Mechanical Specifications

• Dimensions (W × H × D): 224 × 84 × 30 mm

• Weight: 0.78 lbs

• Mounting: DIN Rail

• Enclosure Rating: IP20

Environmental Conditions

• Operating Temperature Range: -25°C to +70°C

Functional Features

• Supports redundant I/O system architectures

• Dual Ethernet ports for network redundancy

• Modular expansion capability for distributed control systems

• Designed for high availability and continuous process operations

Applications

• Process industries requiring high availability (oil & gas, chemical, power)

• Distributed control systems (DCS)

• Redundant PLC architectures

• Critical infrastructure automation

FAQ

Q: Is this module a standalone communication adapter?
A: No, it is a base unit that requires a compatible Ethernet/IP adapter such as the 1715-AENTR for communication functionality.

Q: How many modules can be connected using this base?
A: The system can support up to 24 I/O modules depending on the overall configuration and redundancy design.

Q: Does it support network redundancy?
A: Yes, the dual Ethernet ports enable redundant network topologies for improved system reliability.