Bad RF cable from CMU to LPU?

Products PTP
1

I have been seeing this on my syslog when I'm loosing link.

 
8126 00:15:35 Nov 24 07:45:43 Local 5 Warning status; Wireless Link Status; was=Down; now=Up;
8125 00:15:36 Nov 24 07:45:41 Local 5 Warning status; End Wireless Receive Signal Status; was=Not Detected; now=OK;
8124 00:15:37 Nov 24 07:45:41 Local 5 Warning status; Wireless Receive Signal Status; was=Not Detected; now=OK;
8123 00:15:37 Nov 24 07:45:41 Local 5 Warning status; Wireless Link Status; was=Up; now=Down;
8122 00:15:37 Nov 24 07:45:41 Local 5 Warning status; End Wireless Receive Signal Status; was=OK; now=Not Detected;
8121 00:15:37 Nov 24 07:45:41 Local 5 Warning status; Wireless Receive Signal Status; was=OK; now=Not Detected;
8120 00:16:11 Nov 24 07:45:07 Local 5 Warning status; Wireless Link Status; was=Down; now=Up;
8119 00:16:11 Nov 24 07:45:07 Local 5 Warning status; Transmitter Status; was=Muted; now=Transmitting;
8118 00:16:11 Nov 24 07:45:07 Local 5 Warning status; RFU Tx Mute Status; was=Muted Due To RFU Fault; now=Transmitting;
8117 00:16:11 Nov 24 07:45:07 Local 5 Warning status; Transmitter Status; was=Inactive; now=Muted;
8116 00:16:11 Nov 24 07:45:07 Local 5 Warning status; RFU Tx Mute Status; was=Muted Due To Inactive; now=Muted Due To RFU Fault;
8115 00:16:12 Nov 24 07:45:05 Local 5 Warning status; RFU Cable Attenuation Adjust Alarm; was=IF Cable Attenuator Adjusting; now=OK;
8114 00:16:12 Nov 24 07:45:05 Local 5 Warning status; RFU Cable Alarm; was=IF Cable Voltage Out Of Range; now=OK;
8113 00:16:12 Nov 24 07:45:05 Local 5 Warning status; End Wireless Receive Signal Status; was=Not Detected; now=OK;
8112 00:16:13 Nov 24 07:45:05 Local 5 Warning status; Rx Diversity Availability Status; was=Not Protecting; now=Not Protected;
8111 00:16:13 Nov 24 07:45:05 Local 5 Warning status; Protection Configuration Status; was=OK; now=Configuration Not Protecting;

Is this an indication of a bad RF cable?

2

It could be a bad IF cable. (The IF cable runs from the modem up the tower to the OutDoor Unit, or from the modem to the indoor RF unit.)

There's really not enough information here to root cause  the problem.

I suggest you call customer support. They'll have lots of questions for you--they'll need to know what product this is (PTP 800 or PTP 810), what kind of link (1+0, 1+1, 1+1 with space diversity, etc.), etc.

It's free, 24 hours per day, 7 days per week.

http://www.cambiumnetworks.com/support/contact-support/

I hope this helps!

Dave

3

Thanks Dave!

I did switch out the cable from the CMU to the indoor LPU.  

I do have an open ticket with Support now.  

THe diagnostic files have been sent in, and I'm waiting for response.  

Is there a diagnostic file decoder available?

4

Unfortunately, there is no "diagnostic file decoder" available.

By the way, the diagnostics file functionality prevents Cambium Networks from having to ask the link owner to provide umpteen screen shots of every device configuration web page.

The diagnostics file functionality saves the link owner time, and it saves Cambium Networks time as well!

If there's a problem, the link owner sends one or two diagnostics files instead of multiple screen shot .jpgs.

I hope this helps!

Dave

5

Was it finally a cabling problem?