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What do the LED's on a PM8000 meter indicate?

Issue
What do the LED's on a PM8000 meter indicate? 

Product Line
PM8000 series meters
PM8240
PM8243
PM8244

Environment
PM8000 LED indicators

Resolution
There are multiple LEDs on PM8000 meters as shown below:

A Alarm
B Status/operation
C Energy Pulsing
D Infrared energy pulsing
E Revenue lock status
F Remote display connection link
G Remote display connection activity

See below for more information about each LED:
Alarm LED
State Description
Off No active alarms
On Acknowledged active alarm
Flashing Unacknowledged active alarm

Status/operation LED: 
LED Description
Off Meter is not powered
Green Normal operation
Red Flashing: No communications to display
On: Firmware upgrade required 

(Infrared) Energy pulsing LED:
​Energy pulsing is used to help verify the energy measurement accuracy of the meter for revenue purposes.
The visible and infrared LEDs are configured by default to pulse based on energy measured by the meter.
The pulse weight (pulses per kWh) and the energy source can be configured, except in the case of the PM82401 which requires a specific pulse weight for MID compliance.

Revenue lock LED:
The revenue lock LED indicates the lock status of the meter
State Description
Off The meter is not revenue locked.
On The meter is revenue locked
Flashing New revenue lock state is pending.
Power cycle your meter to set the revenue to on or off 

Remote display connection LED:
There are two LEDs in the remote display connector that indicate the state of communications between the meter and remote display.
LED Description
Green
(link)
On: link established.
Off: no link established with the remote display. Check the connections to the remote display and DIN meter.
Yellow
(activity)
Flashing: active communications between the meter and the remote display.
Off: no communication activity. Check remote display and meter operation.

Expansion I/O LED:
Status LED Off: Unpowered or no communications
On green: Normal operation
Flashing red: Error detected
Digital Input LED Off: Digital input off
On: Digital input on
Digital Output LED Off: Digital output off
On: Digital output on
Analog Input LED Off: No valid analog input value
On: Valid analog input value
Analog Output LED Off: No valid analog output value
On: Valid analog output value

NOTE: for more information on the PM8000, refer to the PM8000 FAQ.
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