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Essential details:KONGSBERG 303088 Input interface board
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KONGSBERG 303088 Input interface board
The 1PPS converter is an option to a standard HiPAP® system. 1PPS; One Pulse per Second.
The signal is normally taken from a GPS receiver or a time synchronize unit.
This pulse is used to synchronize the clock on the APOS/HiPAP system with a reference clock.
In addition to the pulse, a message with correct time must be transmitted on the same serial line as used for the 1PPS input.
A 1PPS converter passes the RS-232 GPS Position Data through but shapes the 1PPS pulse to a fixed pulse length and converts it from TTL level to RS-232 level.