TCAS II PROCESSOR W/CHANGE-7 066-01146-1211TPU-67A TCAS Processor | Change 7.1The TPU-67A is a TCAS processor for the CAS 67 traffic collision avoidance system (TCAS) II by Bendixking.This TCAS II processor (Alternate Part# 01146-1211) includes an ACAS II unit with ext. environmental protection and ..