How is the FTTH line quality of my BSNL Bharat Fiber Connection?

[naman1208]

So i have recently got bsnl ftth service and its been good, lot better then traditional adsl2 system, So speed is great too but i want someone to look at these parameters of fibre cable and please help me to find out about the quality of fibre cable, So here are these parameters ......and i am unable to understand them.

EPON State	Registered and certified
OAM_Link	Established

Optical Module Input Power(dBm)	-17.4
Optical Module Output Power(dBm)	2.0
Optical Module Supply Voltage(uV)	3330000
Optical Transmitter Bias Current(uA)	11582
Operating Temperature of the Optical Module(°C)	61

 

[bg3]

First of all I want to correct everyone... -25 is greater than -26.

So Receiving Light Power should be more than -26.

What is ideal value range for Receiving Light Power.

 

[Nishant]

I know. People get confused with negative values. Hence I've mentioned values in brackets.

 

[jayanta525]

Using Railwire connection from LCO, and I have this:

EPON State	Registered and certified
OAM_Link	Established

Optical Module Input Power(dBm)	-30.4
Optical Module Output Power(dBm)	0.8
Optical Module Supply Voltage(uV)	3417000
Optical Transmitter Bias Current(uA)	12150
Operating Temperature of the Optical Module(°C)	26

It falls to -31 during the day and back up to -29 at night.
Reported to LCO, but they don't give a damn if the connection is working.

 

[sng_shivang]

That is a very poor input power. The connection can stop working any time with such quality.

 

[bg3]

Network Link Connection Information
PON Link Connection Status:	Online
FEC Enable:	Disable
Link Performance Statistics
Packets Number Of PON Port Sent:	245943
Packets Number Of PON Port Received:	539871
Light Module Information
Transmiting Light Power:	2.5dBm
Receiving Light Power:	-31.5dBm
Working Voltage:	3285.8mV
Working Current:	16.654mA
Working Temperature:	58℃

updated

Network Link Connection Information
PON Link Connection Status:	Online
FEC Enable:	Disable
Link Performance Statistics
Packets Number Of PON Port Sent:	184442
Packets Number Of PON Port Received:	358459
Light Module Information
Transmiting Light Power:	2.4dBm
Receiving Light Power:	-20.8dBm
Working Voltage:	3286.5mV
Working Current:	14.138mA
Working Temperature:	51℃

 

[neonbulb]

The PON status of my FTTH line is as shown in the table below. The Rx Power is always around -27 to -28. I experience connection drops seldom and it automatically restores back after some seconds to minutes. Do I need to call the cable service to check it? Is the Rx Power of this device is good at this range?

Vendor Name	Optilink
Temperature	56.074219 C
Voltage	3.389600 V
Tx Power	2.040682 dBm
Rx Power	-27.447268 dBm
Bias Current	11.220000 mA

 

[harshil]

My optical power is -35.8, but somehow net still works. Should I register a complain? What are the bad effects of such low power fiber connection

 

[eriek_halenx]

@harshil , I think you should. Mine is shown as -16.

Optical Module Input Power(dBm)	-16.0
Optical Module Output Power(dBm)	2.4
Optical Module Supply Voltage(uV)	3378000
Optical Transmitter Bias Current(uA)	14050
Operating Temperature of the Optical Module(°C)	43

Are you getting full speed? And say during streaming 4k etc, does it often buffer or decrease resolution? These are apt reasons to complain. You could politely mention the power when the LCO arrives to check

 

[Lameseries]

Optical Module Input Power(dBm)	-4.0
Optical Module Output Power(dBm)	1.4
Optical Module Supply Voltage(uV)	3376000
Optical Transmitter Bias Current(uA)	19150
Operating Temperature of the Optical Module(°C)	36

-4.0 is fine? :O was -13 last time

 

[shashankb]

I guess -4 is fine. Infact very good