For Thyssen elevator PCB CN_1A

CN_1A commonly handles discrete inputs/outputs, signal conditioning, and serial/field communication between the controller CPU and peripheral modules. In practice, it is used where TAC controllers require compact, reliable interface boards for door operators, sensors, field devices, or communication gateways. TAC family controllers and their accessory PCBs are widely traded and supported in the spare-parts market. 
CN_1A boards are built for continuous operation in elevator environments — with a robust layout, EMI resistance, and clear connector pinouts, they simplify on-site diagnostics and replacement. POTENSI supplies new elevator PCB board, genuine CN_1A units. 

POTENSI has strong supply and support capabilities for TAC-series Thyssenkrupp PCBs—especially CLW-1A, CLW-2A / CLW-3A, CTCR, CMBK, CMBK-BCAT, SY503, CN1A/1B, CN2A/2B, CN3A/3B—and we keep ready access to these parts as genuine, brand-new TKE elevator PCBs.

We not only stock those listed TAC/CN family boards, but we also provide comprehensive services that make POTENSI a reliable partner for TKE spare parts. Beyond the TAC family, POTENSI can supply other Thyssenkrupp series—CMC / CMC4 boards, MH series drive and logic PCBs, U-series control modules, MH4 door and drive boards, TCAN and communication modules, Mindis and VPL products, and door operator PCB.