H3C Technologies H3C S12500 Series Switches - Manual (Page 81)

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Table 19 Command output
Field Description
Manu. Serial Number
Serial number generated during commissioning and testing of the transceiver
module
Manufacturing Date Commissioning date
Diagnosing transceiver modules
The switch provides the alarm function and digital diagnosis function for transceiver modules. When a
transceiver module fails or is not operating correctly, you can check the alarms present on the transceiver
module to identify the fault source or examine the key parameters monitored by the digital diagnosis
function, including the temperature, voltage, laser bias current, TX power, and RX power.
To diagnose transceiver modules:
Task Command Remarks
Display alarms present on the
transceiver in a specified
interface
display transceiver alarm interface
[ interface-type interface-number ] If no error occurs, None is
displayed.
Display the present measured
values of the digital diagnosis
parameters for the transceiver
in a specified interface
display transceiver diagnosis
interface [ interface-type
interface-number ]
N/A
# Display the alarm information about the transceiver plugged in GigabitEthernet 3/0/1.
<Sysname> display transceiver alarm interface GigabitEthernet 3/0/1
GigabitEthernet3/0/1 transceiver current alarm information:
TX fault
Table 20 shows the alarm information that might occur to the commonly used transceivers.
Table 20 Command output
Field Remarks
SFP
RX loss of signal Received signals are lost.
TX fault Transmission error.
RX power high The received optical power is high.
RX power low The received optical power is low.
TX power high The transmitted optical power is high.
TX power low The transmitted optical power is low.
TX bias high The transmitted bias current is high.
TX bias low The transmitted bias current is low.
Temp high The temperature is high.
Temp low The temperature is low.