by Optical module fault Alarm Huawei OLT:
Today I will discuss Last down cause: Optical module fault alarm. When you connect a non brand SFP or SFP not match with your OLT version then OLT display Optical module fault Alarm. I face a problem, when i connect a new SFP in H805GPFD board then 0-7 port SFP is working but 8-15 port was not working. When we connect NeoPhotonics Class B+ SFP then it work fine. bellow are the both status.
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Unsupported SFP Status:
NMC_Huawei_OLT02(config-if-gpon-0/0)#display port state 8
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F/S/PÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 0/0/8
Optical Module status       Online
Port state                  Offline
xPON MAC chipset state      Normal
Last down cause             Optical module fault
Last up time                09/12/2015 15:31:57+06:00
Last down time              09/12/2015 15:40:47+06:00
Laser state                 Failed
Available bandwidth(Kbps)Â Â Â 1239040
Temperature(C)Â Â Â Â Â Â Â Â Â Â Â Â Â Â –
TX Bias current(mA)Â Â Â Â Â Â Â Â Â –
Supply Voltage(V)Â Â Â Â Â Â Â Â Â Â Â –
TX power(dBm)Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â –
Illegal rogue ONTÂ Â Â Â Â Â Â Â Â Â Â –
Max rate(Kbps)Â Â Â Â Â Â Â Â Â Â Â Â Â Â 2500000
Max Distance(Km)Â Â Â Â Â Â Â Â Â Â Â Â 20
Wave length(nm)Â Â Â Â Â Â Â Â Â Â Â Â Â 1490
Fiber type                  Single Mode
 Signal detect               Failed
TX fault                    Normal
Identifier                  SFP
Ext.Identifier              GBIC/SFP function is defined by serial ID only
Connector                   SC
Encoding                    NRZ
Length(9¦Ìm)(km)            20.0
Length(50¦Ìm)(m)            –
Length(62.5¦Ìm)(m)          –
Length(copper)(m)Â Â Â Â Â Â Â Â Â Â Â –
Cc_base                     0xe3
CC_EXTÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 0xc3
BR,max                      Unspecified
BR,min                      Unspecified
SFF-8472 Compliance         Includes functionality described in Rev 9.4
Diagnostic Monitoring Type  Digital diagnostic monitoring
Externally Calibrated
Power measurement type: Average Power
Options                     TX_DISABLE,and disables the serial output
TX_FAULT
LOS(signal inverted from standard definition)
Enhanced Options            Alarm/warning flags
TX_DISABLE control and monitoring
TX_FAULT monitoring
Vendor rev                   1.1
Vendor PNÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â SFP-GPON-OLT
Vendor SNÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â SE81070088
Date Code                   14-08-26
Vendor name                 OEM
Vendor OUIÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 00-90-65
Vendor specific             00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Module type                 –
Module sub-type             –
Used type                   –
Encapsulation Type          –
OTDR capability             –
Rx power alarm
threshold(dBm)Â Â Â Â Â Â Â Â Â Â Â Â Â Â [-50.0,-3.0]
Tx power alarm
threshold(dBm)Â Â Â Â Â Â Â Â Â Â Â Â Â Â [0.0,6.0]
Tx bias alarm
threshold(mA)Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â [2.000,110.000]
Supply voltage alarm
threshold(V)Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â [2.900,3.600]
Temperature alarm
threshold(C)Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â [-45,110]
CATV Rx power alarm
threshold(dBm)Â Â Â Â Â Â Â Â Â Â Â Â Â Â [-,-]
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Supported SFP Status:
NMC_Huawei_OLT02(config-if-gpon-0/0)#display port state 15
—————————————————————————-
F/S/PÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 0/0/15
Optical Module status       Online
Port state                  Online
xPON MAC chipset state      Normal
Last down cause             LOS
Last up time                04/01/2016 12:23:26+06:00
Last down time              10/12/2015 13:02:24+06:00
Laser state                 Normal
Available bandwidth(Kbps)Â Â Â 1230040
Temperature(C)Â Â Â Â Â Â Â Â Â Â Â Â Â Â 35
TX Bias current(mA)Â Â Â Â Â Â Â Â Â 11
Supply Voltage(V)Â Â Â Â Â Â Â Â Â Â Â 3.23
TX power(dBm)Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 3.57
Illegal rogue ONTÂ Â Â Â Â Â Â Â Â Â Â Inexistent
Max rate(Kbps)Â Â Â Â Â Â Â Â Â Â Â Â Â Â 2500000
Max Distance(Km)Â Â Â Â Â Â Â Â Â Â Â Â 20
Wave length(nm)Â Â Â Â Â Â Â Â Â Â Â Â Â 1490
Fiber type                  Single Mode
Signal detect               Normal
TX fault                    Normal
Identifier                  SFP
Ext.Identifier              GBIC/SFP function is defined by serial ID only
Connector                   SC
Encoding                    NRZ
Length(9¦?)(km)            20.0
Length(50¦?)(m)            –
Length(62.5¦?)(m)          –
Length(copper)(m)Â Â Â Â Â Â Â Â Â Â Â –
Cc_base                     0xa1
CC_EXTÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 0xbb
BR,max                      Unspecified
BR,min                      Unspecified
SFF-8472 Compliance         Includes functionality described in Rev 9.4
Diagnostic Monitoring Type  Digital diagnostic monitoring
Externally Calibrated
Power measurement type: Average Power
Options                     TX_DISABLE,and disables the serial output
TX_FAULT
LOS(signal inverted from standard definition)
Enhanced Options            Alarm/warning flags
TX_DISABLE control and monitoring
TX_FAULT monitoring
RX_LOS monitoring
Vendor rev                   0.1
Vendor PNÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â PTB38J0-6538E-SC
Vendor SNÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â A0311675749
Date Code                   11-03-13
Vendor name                 NEOPHOTONICS
Vendor OUIÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Unspecified
Vendor specific             50 54 42 33 38 4a 30 2d 36 35 33 38 45 2d 53 43
2f 50 43 2d 4b 45 20 20 20 20 20 20 20 20 ff ff
Module type                 GPON
Module sub-type             CLASS B+
Used type                   OLT
Encapsulation Type          SFP
OTDR capability             Not support
Rx power alarm
threshold(dBm)Â Â Â Â Â Â Â Â Â Â Â Â Â Â [-28.0,-8.0]
Tx power alarm
threshold(dBm)Â Â Â Â Â Â Â Â Â Â Â Â Â Â [0.0,5.0]
Tx bias alarm
threshold(mA)Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â [0.000,90.000]
Supply voltage alarm
threshold(V)Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â [3.000,3.600]
Temperature alarm
threshold(C)Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â [-13,80]
CATV Rx power alarm
threshold(dBm)Â Â Â Â Â Â Â Â Â Â Â Â Â Â [-,-]
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Working SFP Image:
Shahed
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