Description: This attribute indicates the status of the network time server. main -- This network time server is working properly, and is the system servers (synchronization sources) of the module. primary -- This network time server is working properly, and is the primary servers (one of the synchronization sources) of the module secondary -- This network time server is working properly, but its offset and dispersion is not stable or too high so that it can not be selected as one of the primary time synchronization sources. But if the primary synchronization sources are not available, it can take over the responsibility and become the time synchronization source of the module. unused -- This network time server is not used as a server (synchronization source) of the module. noResponse -- This network time server is not responding to the module's time synchronization request. This could be caused by network error or protocol error, or network time server configuration error. stratumTooHigh -- This network time server has the bad stratum (higher than 16), or its stratum is higher than the module's stratum. leapUnsync -- This network time server's leap value indicates that this network time server is not synchronized. clockUnsync -- This network time server's clock values indicates that this network time server is not synchronized. rootTooNoisy -- This network time server's root dispersion is too high, so that its time stamp is not used. peerTooNoisy -- The modules dispersion relative to this network time server is too high, so this network time server's time stamp is not used. faultStick -- This offset of the module relative to this network time server is out of the range or too high, so that it can not be selected as one of the primary time synchronization source.

Description of bits: main(0) primary(1) secondary(2) unused(3) noResponse(4) stratumTooHigh(5) leapUnsync(6) clockUnsync(7) rootTooNoisy(8) peerTooNoisy(9) faultStick(10)