MX960 DC Power Supply LEDs
Each DC power supply faceplate contains three LEDs that indicate the status of the power supply (see
Table 69 on page 143). The power supply status is also reflected in two LEDs on the craft interface. In
addition, a power supply failure triggers the red alarm LED on the craft interface.
Table 69: DC Power Supply LEDs
DescriptionStateColorLabel
Power supply is not functioning normally. Check the INPUT OK LED for
more information.
OffGreenPWR OK
Power supply is functioning normally.On
DC power supply circuit breaker is turned off.OffGreenBREAKER
ON
DC power supply circuit breaker is turned on.On
DC input to the PEM is not present.OffGreenINPUT OK
DC input is present and is connected in correct polarity.On
DC input is present, but connected in reverse polarity.OnYellow
RELATED DOCUMENTATION
MX960 Power Supply LEDs on the Craft Interface | 20
MX960 Power System Overview | 129
MX960 AC Power Supply Description | 130
MX960 DC Power Supply | 140
Electrical Specifications for the MX960 DC Power Supply | 225
143
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