... .7. Infrared photocell interface, Loop detector interface and IC system8. interface ... Barrier Gate,Gate Bridge Barrier,Barrier Arm, Boom Arm,Vehicle Barrier Gate,Vehicle Parking Barrier gate,Vehiclie Boom Gate,Industrial Barrier Gate,Remote Control Barrier Gate,Electric Barrier Gate,Folding Barrier Gate,Gate Barrier,Arm Gate,Arm Barrier,,Turnstile, Tripod Turnstile,Security Tripod Turnstile,Safety ...