Manual
+7(495) 797-3311 www.qtech.ru 
Москва, Новозаводская ул., 18, стр. 1 
116 
Ethernet 1/22 transceiver detail information: N/A 
Ethernet 1/24 transceiver detail information: 
Base information: 
SFP found in this port, manufactured by company, on Sep 29 2010. 
Type is 1000BASE-SX, Link length is 550 m for 50um Multi-Mode Fiber. 
Link length is 270 m for 62.5um Multi-Mode Fiber. 
Nominal bit rate is 1300 Mb/s, Laser wavelength is 850 nm. 
Brief alarm information: N/A 
Detail diagnostic and threshold information: N/A 
Example2: 
Ethernet 21 is inserted the fiber module with DDM. Configure the threshold of the fiber module 
after showing the DDM information. 
Step1: Show the detailed DDM information. 
Switch#show transceiver interface ethernet 1/21 detail 
Ethernet 1/21 transceiver detail information: 
Base information: 
…… 
Brief alarm information: 
RX loss of signal 
Voltage high 
RX power low 
Detail diagnostic and threshold information: 
 Diagnostic Threshold  
 Realtime Value High Alarm Low Alarm High Warn Low Warn 
 -------------- ---------- --------- --------- --------- 
Temperature(°C)  33 70 0 70  0 
Voltage(V) 7.31(A+) 5.00 0.00 5.00 0.00 
Bias current(mA) 6.11(W+) 10.30 0.00 5.00 0.00 
RX Power(dBM) -30.54(A-) 9.00 -25.00 9.00 -25.00 
TX Power(dBM) -13.01 9.00 -25.00 9.00 -25.00 
Step2: Configure the tx-power threshold of the fiber module, the low-warning threshold is -12, 
the low-alarm threshold is -10.00. 
Switch#config 
Switch(config)#interface ethernet 1/21 










