H3C Technologies H3C S7500E Series Switches - Manual (Page 122)

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Table 63 CFP port LED description
LED status Description
Flashing The port is receiving or sending data.
On A link is present.
Off No link is present.
EPON port LEDs
The LPUs provide EPON port LEDs to indicate the link status and data receiving/forwarding status of the
EPON ports.
Table 64 EPON port LED description
LED status Description
On The connected ONU has been successfully registered.
Off The connected ONU is not registered, or no ONU is connected.
Power module LEDs
The S7500E switches support various power module models. Each power module provides LEDs to
indicate the operating status of the power modules. The power module LEDs vary with power module
models.
PSR320-A/PSR320-D
The PSR320-A and PSR320-D power modules each provide a red-green status LED.
Table 65 PSR320-A/PSR320-D power module LED description
LED Status Description
Power module LED
Green The power module is operating correctly.
Red
The power module is operating incorrectly because one of the following
conditions exists:
• The power module generates an alarm and enters the protection state
because of input under-voltage, output short-circuit, output over-current,
output over-voltage, or over temperature.
• A fan failure has occurred.
Off
A power input problem has occurred because one of the following
conditions exists:
• The power module is faulty or switched off.
• The power cord is disconnected.
• The external power supply is unavailable.