can bus communication elevator hall call display board

{"cid":"91211323","title":"SFTC-HCB-VRK Elevator Hall Call Display Board with CAN Bus Communication Floor Display and Fault Code for STEP Elevator","imgUrl":"https:\/\/img.chinax.com\/nimg\/95\/e2\/4887435625b895cf5c25acb6e312-200x200-1.jpg","attrs":{"Brand Name":"SULAB","Model Number":"SFTC-HCB-VRK","Minimum Order Quantity":"1PC","Delivery Time":"Normally 2-3 working days after payment","Payment Terms":"L\/C,D\/A,D\/P,T\/T,Western Union","Brand":"SULAB","Description":"Elevator parts","Model":"SFTC-HCB-VRK","MOQ":"1PC","Transportion":"TNT, UPS, DHL, Fedex, Air, Sea","Applicable":"Elevator","Packages":"Carton, Wooden case, Pallet etc","Warranty":"One year","Payment Method":"Company Bank, Western union, Paypal etc"}}

{"cid":"91142118","title":"Passenger Elevator Dot Matrix LED Display Board DC 24V Power Supply","imgUrl":"https:\/\/img.chinax.com\/nimg\/c9\/d9\/bf13ade54173e58e8547d66a1860-200x200-1.jpg","attrs":{"Price":"$10~50","Brand Name":"SUNNY","Model Number":"Elevator Display","Minimum Order Quantity":"1 Pcs","Delivery Time":"15~30 days","Certification":"CE,ISO9001","Place of Origin":"China","Payment Terms":"L\/C, T\/T, Western Union","Supply Ability":"500pcs\/month","Packaging Details":"Standard Export Package","Name":"Dot-matrix LED Display","System":"INVT","Used":"elevator parts","Hole size(mm)":"4","voltage":"DC20V","Original":"yes","Application":"Elevator","Warranty time":"12 Months","Model":"Dot-matrix LED Display","Product":"Dot-matrix LED Display"}}