process electronic payment terminal HSM BANK (ISSUER,ACQUIRER)

Mar 23 at 11:45 AM
Edited Jul 21 at 9:33 AM
Hello
please can anyone here explain to me ,
the process between electronic payement terminal ,HSM,issuer bank and acquirer bank
with key management (PIN,PIN BLOCK,LMK,TMK,ZMK,ZPK,TPK ......

Image