What is Cabinet I/O card ?

* LED = Green blinking is normal.
* CP1, CP2 = I/O unit Power = DC24V
* CB104 (R)
* CB105 (L)
* JA3 = MPG
* JD1A = to Next i/o card
* JD1B = from previous card
* CB106 (R)
* CB107 (L)