cancel
Showing results for 
Show  only  | Search instead for 
Did you mean: 
Highlighted
New Contributor III

908e SIP to Dual PRI Clocking

Jump to solution

How do I set the Adtran to be the clock source for the PBX for a Dual PRI scenario?

Is the only thing I need?

TA908e(config)#timing-source internal

R11.12.0.e

Message was edited by: Garabed Yegavian

Labels (2)
0 Kudos
Reply
1 Solution

Accepted Solutions
Highlighted
Honored Contributor
Honored Contributor

Re: 908e SIP to Dual PRI Clocking

Jump to solution

garabedy wrote:



How do I set the Adtran to be the clock source for the PBX for a Dual PRI scenario?



Is the only thing I need?



TA908e(config)#timing-source internal


If the TA908e will be providing the clock for both PRIs such as feeding a PBX, yes. Make sure that the PBX is set to take its clock from the line.

If there's a T1 coming from a carrier into the TA908e, you probably want that T1 interface to be the timing-source for the network. The TA908e will sync to that clock and pass timing through to the remaining T1s.

It can get interesting in some complex scenarios such as where the TA908e and a separate unrelated carrier T1 are both feeding the PBX.

When finished, type "show interface | i Slip" two times about a minute apart and make sure that the Controlled Slip Seconds aren't increasing on any operational T1s to verify.

View solution in original post

0 Kudos
Reply
1 Reply
Highlighted
Honored Contributor
Honored Contributor

Re: 908e SIP to Dual PRI Clocking

Jump to solution

garabedy wrote:



How do I set the Adtran to be the clock source for the PBX for a Dual PRI scenario?



Is the only thing I need?



TA908e(config)#timing-source internal


If the TA908e will be providing the clock for both PRIs such as feeding a PBX, yes. Make sure that the PBX is set to take its clock from the line.

If there's a T1 coming from a carrier into the TA908e, you probably want that T1 interface to be the timing-source for the network. The TA908e will sync to that clock and pass timing through to the remaining T1s.

It can get interesting in some complex scenarios such as where the TA908e and a separate unrelated carrier T1 are both feeding the PBX.

When finished, type "show interface | i Slip" two times about a minute apart and make sure that the Controlled Slip Seconds aren't increasing on any operational T1s to verify.

View solution in original post

0 Kudos
Reply