Some key features of the 1769-CRR1 module include:

Provides a single ControlNet port for network communication

Supports data rates of 5 Mbps or 10 Mbps on the ControlNet network

Supports both simplex and redundant network configurations

Allows for up to 100 nodes on the ControlNet network

Offers built-in diagnostic LEDs for monitoring module status and network activity

The 1769-CRR1 module is part of the Allen-Bradley Compact I/O product family, which offers a wide range of I/O modules for various applications. These modules can be easily installed in a CompactLogix chassis, providing flexibility and scalability in designing automation systems.