Option 61C Clocking Question 1

[LenLew]

Hello Everyone. I have an Option 61C which I am dropping a couple T-1/PRI circuits, going down to only 1 PRI remaining in the PBX. Of course I currently have a QPC471H CC in both core/net modules which are both cabled to 2 separate NT5D12 DDP cards for primary & secondary clock reference inputs. Since I am going to end up with only 1 hot circuit in the PBX I will be disconnecting the PRI loop that is the secondary clock reference. I know I will need to go to LD-73 and remove that loop as the "SREF". My questions are; is there anything else I need to do besides the typical deprogramming of the trunks, D-Ch., loop, etc.? Should I unplug the cables feeding the clock input from this loop to both CC's? Can I expect any issues, other than not having a backup clock source, by doing this? Also, when I printed LD-73 I noticed a "P" printed to the right of my SREF loop # and a "R" to the right of the RALM data. I tried to find the meaning of this "P" & "R" in the book but could find no reference to it. Does anyone know what they mean?
Thanks

Lenny Llewellyn
Shentel Telephone Corp.

http://www.shentel.com/

 

[srmega41]

I am not sue about the "P & R", but you should not have any issues, and it sounds like you have everything covered.

I will say this; I always make it a practice to pull any unused cards and cables. If you have no reason for them to be there, take them out. This helps with just keeping the bigger systems clean, helps you know what is physically in your PBX, and ensues you have no issues, like an unused cable providing an electrical path to your CC.

This in just my own opinion, and I would be happy to listen to arguments to the contrary. I have just never heard of one.

Hope this helps,

Scott M.

 

[viperen]

In my opinion, If you don`t need anymore,you can delete loop,d-channel....At least you should disable it.And of course remove the cards.

 

[LenLew]

Thanks Scott. I appreciate the response & I agree completely with your advice of pulling cards not in use. I too practice this when possible.
Thaanks Again
Lenny

Lenny Llewellyn
Shentel Telephone Corp.

http://www.shentel.com/

 

[hawks]

Just make your secondary clock source as Free Run