Allen Bradley 1771-ALX Series A Firmware B PLC Local I/O Adapter Module

Allen Bradley PLC5 Local I/O Adapter Module 1771-ALX Ser A F/W Rev B

Allen Bradley 1771-ALX Series A Firmware B PLC Local I/O Adapter Module

Allen-Bradley 1771-ASB PLC-5 Remote I/O Adapter Module

Allen-Bradley 1771-ALX/A PLC5 Local I/O Adapter Module

ALLEN BRADLEY 1771-ALX PLC MODULE

Allen Bradley 1771-ALX A PLC5 Local I/O Adapter Module Series A Firmware Rev C

Lot of 2: Allen-Bradley 1771-ARC Remote I/O Adapter PLC Interface Module, Ser. B