Clock controller errors on option 11

[luddyspence]

I am getting DTA15 3 error and the telco say that they are getting errors from the option 11 PBX. My T1 cards are in slot 2, 3 and 4. The clock and D-channel is on slot 2. The T1 was down 2 times today as a result of the errors. How can I fix this.
This is the status of the clock controller: SSCK 0

ENBL
CLOCK ACTIVE
CLOCK CONTROLLER - DTI063
PREF - 2
SREF - 3
AUTO SWREF CLK - ENBL
NO ERROR

IP DB PORT 1 DSBL
IP DB PORT 2 DSBL
IP DB PORT 3 DSBL
IP DB PORT 4 DSBL
CALL SERVER CLK SRC: CC

 

[janaya]

ld 60

.trck pck

That will lock it to the primary clock source. See what happens after you do this.

Then I would reset TMDI 3 and then you can try


ld 60

.trck sck


John

 

[luddyspence]

So far no error. Should I be using the primary or secondary clock? The d-channel is on slot 2.

 

[luddyspence]

ENBL
CLOCK ACTIVE
CLOCK CONTROLLER - LOCKED TO SLOT 3
PREF - 2
SREF - 3
AUTO SWREF CLK - ENBL
NO ERROR

IP DB PORT 1 DSBL
IP DB PORT 2 DSBL
IP DB PORT 3 DSBL
IP DB PORT 4 DSBL
CALL SERVER CLK SRC: CC

 

[luddyspence]

The clock controller is locked to slot 3. Can I lock it to slot 2? Is there any connection to where the D-channel is located?

 

[acewarlock]

Quote: As janaya said.


ld 60

.trck pck

That will lock it to the primary clock source. See what happens after you do this.





This is a Signature and not part of the answer, it appears on every reply.

This is an Analogy so don't take it personally as some have.

Why change the engine if all you need is to change the spark plugs.

 

[hhallett]

Yes, there is a direct correlation between the clock and it's source.

As janaya and Acewarlock have recommended you'll want to go into LD 60 and enter the following:

- trck pck

That will lock it to the primary reference clock source (PREF) which, according to your printout, is the Loop 2. Presuming that this T-1 has a solid timing signal coming from the CO you should be OK. Right now you're clocking off of your secondary reference clock source (SREF)which, according to your printout, is the Loop 3.

Regards,
Harry
"The legitimate powers of government extend to such acts only as are injurious to others. But it does me no injury for my neighbour to say there are twenty gods, or no god. It neither picks my pocket nor breaks my leg." --Thomas Jefferson

 

[phones1]

just out of interest what signalling are you using?

Remember if it doesn't work hit it harder

Scott UK

 

[luddyspence]

Should I be locking to the Primary or secondary clock source? Does it matter?

 

[hhallett]

Luddyspence, you're trying to yank our chain, right? That question has already been answered in previous posts.

Lock your clock reference to the primary reference. The secondary reference is there only if the primary reference fails.

Yes, it matters. Your primary reference should always be from the most reliable source available which is normally the telephone company.

Regards,
Harry
"The legitimate powers of government extend to such acts only as are injurious to others. But it does me no injury for my neighbour to say there are twenty gods, or no god. It neither picks my pocket nor breaks my leg." --Thomas Jefferson

 

[luddyspence]

Thanks I appreciate the clarification. I will switch it to the primary clock.

 

[M1north]

I thought OPT11C only had 1 clock source and secondary was always free run?

 

[acewarlock]

Look at the question and you will see it shows 2 sources, I had 2 on my Option 11C.




This is a Signature and not part of the answer, it appears on every reply.

This is an Analogy so don't take it personally as some have.

Why change the engine if all you need is to change the spark plugs.

 

[hawks]

M1north, I think your thinking of the card itself which the Option 11 does only have 1 Clock Card. But if you have 2 T1's then you can have that card clock from a Primary and a Secondary source. Free Run is a last resort..

 

[trvlr1]

As M1North says, I too thought that the SSC version of the Opt 11 was a single source clock, with freerun as the secondary. I know you can do the admin and add a second T-1 as a secondary clock source, but I do not think it works and will eventually fail back to the primary or free run. The opt 11 with SSC is in effect a single core unit. Does anyone out there have the facilities to test this?

 

[acewarlock]

I have had my system running on the 2nd source while the 1st PRI was down for maintainence by the telco and it worked fine.




This is a Signature and not part of the answer, it appears on every reply.

This is an Analogy so don't take it personally as some have.

Why change the engine if all you need is to change the spark plugs.

 

[hawks]

From the Option 11C DTI/PRI doc.

Tracking Mode:
In tracking mode, one or possibly two DTI/PRI cards supply a clock reference to a clock controller daughterboard. When operating in tracking mode, one DTI/PRI is defined as the primary reference source for clock synchronization,
while the other is defined as the secondary reference source.