3Com 3CNJPSE24 User Manual page 13

Introduction to the Ethernet Power Supply
Ethernet Power Supply Status Indications
The following tables contain Ethernet Power Supply status
information as presented on the front panel by the LED
indicators during normal operation.
Table 1 Power Active (Green) and Power Not Active (Orange) -
Status Indications
Port
Port LED Color Port Load Conditions
Off Non-active load, or
unplugged port.
Green Active load is plugged
in and complies with
normal load
conditions.
Orange Overload conditions or
shorted terminal port
or forced external
voltage feed (constant
DC) into the port.
Green — Transitional mode in
Blinking which load detection is
in process or
discharged capacitor
in the PDTE.
Orange — Total aggregated
Blinking power exceeds pre-
defined power budget.
Ethernet Power Supply User s Guide
Port Voltage
Power to the port is
disconnected.
No DC voltage is
present on the spare
pairs.
Continuous nominal
DC voltage is present
on the spare pairs.
Power to the port is
disconnected.
No DC voltage is
present on the spare
pairs.
Power to the port is
disconnected.
No DC voltage is
present on the spare
pairs.
Power to the port is
disconnected.
No DC voltage is
present on the spare
pairs.
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