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Wolfgang Hottgenroth 2025-03-13 15:15:48 +01:00
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@ -19,7 +19,7 @@ The snmpd subagent for monitoring the ntp daemon is here: [https://gitea.hottis.
### Details of Setup ### Details of Setup
A GPS receiver (ublox Neo-6M) is connected via a RS232 level converter (MAX232) and via the RS232 connection to a machine with a Debian installation. A GPS receiver (ublox Neo-6M) is connected via a RS232 level converter (MAX232) and via the RS232 connection to a machine (it was not easy to find one with RS232) with a Debian installation.
The PPS signal of the GPS receiver is transmitted via the DCD line of the RS232 connection. That in turn is evaluated by the NMEA line discipline of Linux. The PPS signal of the GPS receiver is transmitted via the DCD line of the RS232 connection. That in turn is evaluated by the NMEA line discipline of Linux.