Dalian Sigma car communication CSB board

LG Sigma Elevator CSB Board,
Prat number is 1R02480A / CSB / GCB07006 / GSEP-MO1.
LG-OTIS LG Dalian Sigma car communication board CSB PCB 1R02480A

LG-Otis Sigma 1R02480A Dalian Sigma car communication CSB board