3Com Switch 4500 Family Manual page 838

Description
Use the display transceiver alarm interface command to display the current alarm information of a
single or all transceivers.
If no error occurs, None is displayed.
Table 3-5 shows the alarm information that may occur for the four types of transceivers.
Table 3-5 Description on the fields of display transceiver alarm interface
GBIC/SFP
RX loss of signal
RX power high
RX power low
TX fault
TX bias high
TX bias low
TX power high
TX power low
Temp high
Temp low
Voltage high
Voltage low
Transceiver info I/O error
Transceiver info checksum error
Transceiver type and port configuration
mismatch
Transceiver type not supported by port
hardware
XFP
RX loss of signal
RX not ready
RX CDR loss of lock
RX power high
RX power low
TX not ready
TX fault
TX CDR loss of lock
TX bias high
TX bias low
TX power high
Field
RX signal is lost.
RX power is high.
RX power is low.
TX fault
TX bias current is high.
TX bias current is low.
TX power is high.
TX power is low.
Temperature is high.
Temperature is low.
Voltage is high.
Voltage is low.
Transceiver information read and write error
Transceiver information checksum error
Transceiver type does not match port configuration.
Transceiver type is not supported on the port.
RX signal is lost.
RX is not ready
RX clock cannot be recovered.
RX power is high.
RX power is low.
TX is not ready.
TX fault
TX clock cannot be recovered.
TX bias current is high.
TX bias current is low.
TX power is high.
3-7
Remarks