CS1000e GPS Clocking

[PBlaney]

I am looking to find out how to interface GPS clocking source to a CS1000E system. Has anybody done this? If so could you provide me any good docs or point me in the right direction.

 

[GHTROUT]

Will it be a mobile/transportable system? Just curious.

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[nhphoneguy]

We are using Symmetricom Time Providers. Has t1 outputs for sync as well as being an NTP server for time.

http://www.symmetricom.com/products...-primary-reference-sources/TimeProvider-1000/

 

[PBlaney]

We are looking to tie the CS1000e call servers into an external Global Clocking source. We are just using a GPS system to access the Global clock. Has anyone done this before?

 

[nhphoneguy]

simply create a PRI with no channels built, make it your primary reference clock, and connect it to the sync (in this case a T1 ESF) output of your GPS box. You can also use it as the BITS clock input for ATM and SONET gear. Hope that helps...

 

[PBlaney]

Thanks. I am also checking with mt BITS vendor for any white papers they may have that discribes the integration.

 

[PBlaney]

nhphoneguy Thanks - My Nortel engineer was surprised of your suggestion but fully understood it. He also added that Nortel does not support it. Boy am I surprised

 

[nhphoneguy]

not sure what they wouldn't support. A T1 is a T1, whether or not it comes from your LEC or a black box in the rack. We have been doing this for over 10 years at multiple sites with no issues. There were a couple of solar flares that knocked out the receiver for a minute or 2, but with dual rubidium oscillators, the holdover time is something on the order of 14 days....