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4.3 Status LEDs
The E-O Converter provides four status LEDs:
Power
,
Charge
,
Optical Error
, and
ePHY Error
. In addition, the
ePHY Error
Versatile Link
transmitter provides status similar to the
ePHY Error
LED. The status LEDs and
Versatile Link
transmitter are shown in Figure 4-3.
4.3.1 Power
The
Power
LED provides four states that convey the following status information:
Off
- The E-O Converter is not powered (power switch is
OFF
or battery charge is depleted).
Green
- The E-O Converter is powered via the battery or the power jack (power switch is
ON
).
Yellow
- The battery has less than two hours of charge remaining. Use the DC power supply to charge
the battery.
Flashing Green/Yellow
- The battery is disconnected or defective (DC power supply is present).
4.3.2 Charge
The
Charge
LED is relevant only when the DC power supply is connected to the power jack. The three states
of the
Charge
LED include:
Off
- The battery is in trickle-charge mode. This indicates that the fast charge cycle has completed and
the battery is fully charged.
Blue
- The charger circuit is in fast-charge mode.
Flashing Blue
- The battery cannot enter fast-charge mode because the temperature is too high or the
battery is severely discharged. In this mode, the battery is being trickle charged.
4.3.3 Optical Error
The
Optical Error
LED is only valid while the E-O Converter is powered (
Power
LED is green). The two states
for the
Optical Error
LED include:
Off
- There are no coding errors or network unlocks from the incoming optical network.
Red
- A coding error or network unlock event occurred on the incoming optical network. The pulse
width of the on cycle is greater than 50 ms for coding errors and greater than 150 ms for network
unlock events. The
Optical Error
LED is constantly on while the error condition persists.
4.3.4 ePHY Error
The
ePHY Error
LED and
Versatile Link
transmitter are only valid when the E-O Converter is powered (
Power
LED is green). The two states for the
ePHY Error
LED and
Versatile Link
transmitter include:
Off
- There are no coding errors or network unlocks from the incoming ePHY network.
Red
- A coding error or network unlock event occurred on the incoming ePHY network. The pulse width
of the on cycle is greater than 50 ms for coding errors and greater than 150 ms for network unlock
events. The
ePHY Error
LED and
Versatile Link
transmitter are constantly on while the error condition
persists.
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ePHY
Error
Figure 4-3: LED Layout
