P890 and P892 Indicators
(Original Document)
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The following table shows P890/P892 processor indicator lights and provides the name, color and indication when on. The I/O processor lights are on both processors. The ASCII error indicator is only on the P892 processor.
Indicator Lights for P890 and P892
Indicator lights for I/O processor P890 and P892.
Name
Color
Indication (when on)
Power OK
Green
All Voltages are OK.
Ready
Amber
I/O processor board successfully passed power-up tests.
Comm Active
Green
I/O comm active between P89X and 984.
Comm Error
Red
A communications error has been detected between the processor and the controller.
Ourbus Error
Red
A communications error has been detected between the processor and the I/O modules.
Indicator Light ASCII (P892 only)
ASCII error indicator light
Name
Color
Indication (when on)
ASCII Error
Red
An ASCII communications error has been detected at the processor.