8.1.1
I/O Pack Power LED Not Lit
I/O Pack Power Troubleshooting
Condition
Potential Problem
All other I/O packs on same terminal board have power
lights lit
I/O pack power connector
I/O pack failure
Some other I/O packs on same terminal board have power
LED lit (or simplex board)
I/O pack power connector
I/O pack failure
Terminal board failure
No other I/O packs on same terminal board have power
LEDs lit
Terminal board power
Terminal board failure
Troubleshooting
GEH-6721_Vol_I_BP System Guide 177
Public Information