Time (J.Quick)

The NCCS will be synchronised to the time standard originating from a master clock driven by the 5MHz output of the station Hydrogen Maser Frequency standard. Synchronisation is achieved through a Network Time Server module ( connected to the master clock IRIG-B timecode output ) via the Network Time Protocol (NTP). PC-STEER receives the same UT time from the NASA BCD timecode output of the same master clock via a coaxial cable direct from the timing room. The main NCCS control computer and its backup are configured to synchronise primarily to the NTS with the PC-STEER system clock as backup. The two NCCS machines then function as secondary time servers to all other machines on both the control and main HartRAO networks.

Tasks completed :

$\Longrightarrow$

PURCHASE, CONFIGURE AND INSTALL MASTER STATION CLOCK,

$\Longrightarrow$

PURCHASE, CONFIGURE AND INSTALL NETWORK TIME SERVER,

$\Longrightarrow$

EXPORT NASA TIMECODE LOCKED TIME FROM PC-STEER VIA NTP,

$\Longrightarrow$

INSTALL NTP SOFTWARE ON ALL CONTROL COMPUTERS.