Chapter 23: Maintenance
PTP 820C LEDs
phn-3963_004v000
Page 23-440
Off - Admin is Disabled .
Green - Admin is Enabled .
If the MGT interface is being used for protection, the Orange LED indicates the status of the mate
unit.:
Off – The interface is not in an operational state (down).
Orange – The interface is operational (up).
Blinking Orange – The interface is operational, and there is traffic on the interface (Tx, Rx, or
both).
Radio LED
The Link LED is a three-color LED that indicates the status of the radio link:
Off – The radio is off.
Green - The power is on, and all carriers are operational (up).
Yellow - A signal degrade condition exists in at least one carrier.
Red - A loss of frame (LOF) or excessive BER condition exists in at least one carrier.
Status LED
The Status LED is a three-color LED that indicates the status of the radio link:
Off – The power is off.
Green - The power is on, and no alarms are raised on the motherboard.
Yellow - The power is on, and one or more minor alarms or warnings are raised on the
motherboard.
Red - The power is on, and one or more major or critical alarms are raised on the
motherboard.
Protection LED
The Protection LED is a three-color LED that operates in a protected configuration to indicate the
protection status:
Red – A protection alarm exists (cable disconnected, etc.)
Yellow - Protection is enabled, and the unit is in standby mode.
Green - Protection is enabled, and the unit is in active mode.
Off - Protection is not enabled.