Screw Terminal Board Wire diagram
The DB-8225 , DB-1825 , DN-25.....screw terminal board.  When you need to check your wiring or  change channel wiring. It can saving your time.
The DB-8225 include cold juntion circuit (CJC). The CJC can be use in thermocouple measurement, The thermocouple measurement only for H version multi-function board.
The DB-37 screw terminal board , It didn't cable to connection, It's direct connection.
The CA-4002 is a 37-pin D-sub connector for solding wire.