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Clock wondering
- Thread starter Option43
- Start date
4 week period is too much and too long. I am mostly calibrating our system here after 3 days only. You should have a reference clock e.g atomic clock or web base clock for reference. Do not use your wristwatch. If still faulty it is most likely your external clock on SCEXP command. If you have another ISDN/CAS pipe, move FEML to this second trunk board.
_____________________________
Its a fact.
Killed 1 or 2, you end up in jail or maybe death penalty...
Killed 5 or more, you end up in mental hospital for treatment...
Killed hundreds or thousands, Human right groups are behind you...
_____________________________
Its a fact.
Killed 1 or 2, you end up in jail or maybe death penalty...
Killed 5 or more, you end up in mental hospital for treatment...
Killed hundreds or thousands, Human right groups are behind you...
zebra1234 (TechnicalUser) 14 Apr 05 10:48 wrote:
***********************************************************
Hello,
We have a system were the clock keeps loosing time. It has been calibrated over a 4-week period but after two weeks the clock looses time. Do you think we need to change the LSU in LIM 1? Any ideas would be grateful.
Thanks
***********************************************************
You need to begin and end your calibration according to a known good time source.....I use the Nat'l Bureau of Standards in Ft. Collins Co. -- 303-499-7111. They give GMT but you can add or subtract hours based on your own time zone.......truthfully, all you really care aboutis the "tone" as you need to send your commands "at the sound of the tone".
Begin a new calibration and let it go for at least the minimum 55 hours before you end it.........if you begin and end exactly on the tone mark, your time should stop drifting. Wait about a week or 2, and begin another calibration, but let this one go for at least a week before you end it.
The length of your calibrations and the time in between calibrations should get progressively longer......the longer the calibration, the more accurate the system clock becomes -- the critical part of all this that you begin and end exactly on the tone mark. You may never get it *exact*, but the time display on digital phones doesn't quite update in "real time" anyway.
FWIW, the LSU has nothing to do with the system clock.....it's on the LPU. The system clock (as in what time it is) also has nothing to do with external synch which is "timing".
Good luck,
Dave Strang
***********************************************************
Hello,
We have a system were the clock keeps loosing time. It has been calibrated over a 4-week period but after two weeks the clock looses time. Do you think we need to change the LSU in LIM 1? Any ideas would be grateful.
Thanks
***********************************************************
You need to begin and end your calibration according to a known good time source.....I use the Nat'l Bureau of Standards in Ft. Collins Co. -- 303-499-7111. They give GMT but you can add or subtract hours based on your own time zone.......truthfully, all you really care aboutis the "tone" as you need to send your commands "at the sound of the tone".
Begin a new calibration and let it go for at least the minimum 55 hours before you end it.........if you begin and end exactly on the tone mark, your time should stop drifting. Wait about a week or 2, and begin another calibration, but let this one go for at least a week before you end it.
The length of your calibrations and the time in between calibrations should get progressively longer......the longer the calibration, the more accurate the system clock becomes -- the critical part of all this that you begin and end exactly on the tone mark. You may never get it *exact*, but the time display on digital phones doesn't quite update in "real time" anyway.
FWIW, the LSU has nothing to do with the system clock.....it's on the LPU. The system clock (as in what time it is) also has nothing to do with external synch which is "timing".
Good luck,
Dave Strang
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