Configuring ntp to use a serial radio clock

Solution Verified - Updated -

Issue

The hardware clock is connected to a RS-232 serial port and ntp should use this as stratum 1 source.

Example of a hardware clock:

http://www.esat.it/images/orologio_rad2000.jpg
* Rad 2000 produced by Esat (datasheet)

Environment

  • Red Hat Enterprise Linux 5.3

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