Here are some key features of the 1734-IA2 module:

Input Channels: The module has two digital input channels, labeled as channel 0 (IN 0) and channel 1 (IN 1). Each channel can accept a discrete input signal.

Input Type: The 1734-IA2 module supports DC input signals. It can accept either sourcing or sinking inputs, depending on the configuration.

Signal Range: The module is compatible with a wide range of DC input voltages. Typically, it can accept input voltages between 10 and 30 volts DC.

Module Communication: The 1734-IA2 module is designed to communicate with the control system over a backplane connection. It plugs into a compatible I/O chassis, such as the 1734-AENT adapter or other POINT I/O bases.

Module Status: The module features LED status indicators that provide visual feedback on the module status, such as power status, communication status, and input channel status.

Allen Bradley 1734 Series Plc Model 

1734-IE2V

1734-IE4C

1734-IJ

1734-IK

1734-IM4

1734-IT2I

1734-OA2

1734-OA4

1734-OB2

1734-OB2EP

1734-OB4

1734-OB4E

1734-OB8

1734-OE2V

1734-OV8E

1734-OW4

1734-PDN

1734-RTB

1734-SSI

1734-TB

1734-TB3

1734-TBCJC

1734-TBS

1734-TOP

1734-TOP3

1734-TOP3S

1734-TOPS