[ntp:questions] ACTS / PTB modem refclock
mills at udel.edu
mills at udel.edu
Wed Apr 25 15:33:00 UTC 2007
Heiko,
The phone string is copied verbatim to the modem as per Hayes command
set. You can test by sending the same string to the modem using a
terminal program. You can also test using the NTP filegen facility and
flag 4 set on the fudge command. The modem protocol and command
responses are written to the clockstats file.
Dave
Heiko Gerstung wrote:
> Dave,
>
> thank you for your fast reply. I tried exactly that configuration, but
> used the PTB phone number (which works in a test with cu, as described).
>
> When I first did not include the atdt string, ntpd said "no answer" in
> the syslog. When I include the "atdt" I can see no modem activity at all
> and I get zero log entries (reach stays at 0).
>
> I will try again tomorrow morning when I am back in the office and keep
> you posted.
>
> Cheers,
> Heiko
>
>
> mills at udel.edu schrieb:
>
>> Heiko,
>>
>> server 127.127.18.1 minpoll 12 maxpoll 17
>> phone atdt913034944774 atdt917195676742
>>
>> The driver first tries NIST Boulder and if that fails USNO Boulder.
>> Note from my office it first dials 9 for an outside line, then 1 for
>> long distance.
>>
>> Dave
>>
>> Heiko Gerstung wrote:
>>
>>> Hi!
>>>
>>> I am currently trying to setup a box which uses the ACTS refclock
>>> driver to use the PTB modem service as a time source.
>>>
>>> Unfortunately the documentation regarding this driver is not that
>>> detailed and I am therefore looking out for any working example
>>> configurations of such a driver.
>>>
>>> Every time I restart ntpd, it tries to dial out but fails and says
>>> "no answer", but when I use cu with the very same phone number, it
>>> works flawlessy.
>>>
>>> Any hints?
>>>
>>> Regards,
>>> Heiko
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