Allen Bradley 1784-KTX Series B Communication Interface PC Card Module

Allen Bradley 1771-KA Series A Communication Adapter Module - USED

Allen-Bradley 1771-KE Series A Communication Controller Module NOT TESTED

ALLEN BRADLEY 1771-DCM SERIES A DIRECT COMMUNICATION MODULE 1.20A 5VDC

Allen-Bradley 1756-DNB Communication Module Series D

Allen-Bradley 22-COMM-D Series A DeviceNet Communication Module Used

Allen-Bradley 1785-KA Series A Rev B Communication Adapter Module

Allen Bradley 1203-GD1, COMMUNICATION MODULE, REMOTE I/O, 120/240 VAC