No problem, Marcus.  Thanks! 

Best regards, 

Joe

> On Mar 12, 2019, at 2:31 AM, Marcus Müller <marcus.muel...@ettus.com> wrote:
> 
> Hi Koyel, Wade and Joe,
> 
> ah! My bad. I got my X310 out of the cupboard and was so concentrated
> on figuring which red LED was meant that I really focused on the back
> panel – and forgot there's literally a "LINK" LED on the front of the
> USRP. My apologies!
> 
> You'll have to do a bit of a deeper dive, but you'll find out that the
> LINK indicator basically shines whenever there's rx or tx active, far
> as I read db_control.v.
> 
> Best regards, and again, my apologies,
> Marcus
> 
> On Mon, 2019-03-11 at 17:27 -0500, Wade Fife wrote:
>> As far as I can tell, the LED color hasn't changed. Page 13 has the
>> SFP status LEDs, which show through the panel above the SFPs. These
>> are green for link (left, above the SFP) and yellow for activity
>> (right, above the SFP).
>> 
>> Page 14 has the "LINK" LED, which shows through on the opposite end
>> of the USRP (next to the RF ports). This one is a RED/GREEN bicolor.
>> I think this LED is a combination of the PCIe and Ethernet status.
>> Orange is what you get when both RED and GREEN are on at the same
>> time. I have an X310 on my desk and this LED varies between red,
>> orange, yellow, and green, depending on how the LEDs are flashing.
>> 
>> I think the behavior Koyel is seeing is expected and just means
>> there's data being transferred, assuming Koyel is looking at the LINK
>> LED that's next to the RF ports.
>> 
>> Thanks,
>> 
>> Wade
>> 
>> On Thu, Mar 7, 2019 at 7:48 PM Joe Martin via USRP-users <
>> usrp-users@lists.ettus.com> wrote:
>>> Interestingly, my X310 front panel LED occasionally, very briefly
>>> shows red too.  Maybe the schematic isn’t current with what is
>>> actually used in the unit these days(?).  
>>> 
>>> Regards, 
>>> 
>>> Joe
>>> 
>>>> On Mar 7, 2019, at 3:36 PM, Marcus Müller via USRP-users <
>>> usrp-users@lists.ettus.com> wrote:
>>>> 
>>>> So that's built on an X3x0 platform. As said, no, the link leds
>>> really
>>>> just display link status, nothing about the data.
>>>> Also, when you look at the schematic of the X300, PDF [1] page
>>> 13,
>>>> you'll find no red LED – only green and yellow, so I must admit
>>> I'm a
>>>> bit confused about what you witnessed?
>>>> 
>>>> Best regards,
>>>> Marcus
>>>> 
>>>> [1] http://files.ettus.com/schematics/x300/x3xx.pdf
>>>> On Thu, 2019-03-07 at 09:56 +0000, Koyel Das (Vehere) wrote:
>>>>> I am using USRP 2955 R
>>>>> 
>>>>> Koyel Das                                     
>>>>> Senior – Product Engineer
>>>>> Vehere | Proactive Communications Intelligence & Cyber Defence
>>>>> M: +919051132173 | T: +91 33 40545454 | F: +91 33 40545455 | W: 
>>>>> www.vehere.com
>>>>> 
>>>>> 
>>>>> 
>>>>> Vehere is the proud recipient of the Fastest Growing Technology
>>>>> Company Awards in India & Asia since 2012!
>>>>> 
>>>>> The content of this e-mail is confidential and intended solely
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>>>>> the use of the addressee. The text of this email (including any
>>>>> attachments) may contain information, which is proprietary
>>> and/or
>>>>> confidential or privileged in nature belonging to Vehere
>>> Interactive
>>>>> Pvt Ltd and/or its associates/ group companies/ subsidiaries. If
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>>>>> are not the addressee, or the person responsible for delivering
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>>>>> From: Marcus Müller <marcus.muel...@ettus.com>
>>>>> Sent: Thursday, March 7, 2019 3:21:40 PM
>>>>> To: Koyel Das (Vehere); 'USRP-users@lists.ettus.com'
>>>>> Subject: Re: [USRP-users] link led colour
>>>>> 
>>>>> The link LEDs on our USRPs don't indicate validness of data.
>>> It's
>>>>> highly likely this is normal. What USRP are you using?
>>>>> 
>>>>> Best regards,
>>>>> Marcus
>>>>> 
>>>>> On Wed, 2019-03-06 at 05:05 +0000, Koyel Das (Vehere) via USRP-
>>> users
>>>>> wrote:
>>>>>> Hi,
>>>>>> 
>>>>>> When I am receiving data using ethernet my link LED is orange
>>> most
>>>>> of
>>>>>> the times and blinking to red for momentarily, which is not so
>>>>>> noticeable. Am I receiving wrong data? It is not turning green.
>>>>>> 
>>>>>> Regards,
>>>>>> Koyel
>>>>>> 
>>>>>> Koyel Das                                     
>>>>>> Senior – Product Engineer
>>>>>> Vehere | Proactive Communications Intelligence & Cyber Defence
>>>>>> M: +919051132173 | T: +91 33 40545454 | F: +91 33 40545455 |
>>> W: 
>>>>>> www.vehere.com
>>> 
>>> 
>>> _______________________________________________
>>> USRP-users mailing list
>>> USRP-users@lists.ettus.com
>>> http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com
> 
> 


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