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7. Information
The GSM – GPS Docking has « banana » output connector to provide a signal TOP-MINUTE which is
useful to synchronize other timing systems.
If the GPS is used only for the CP 540, it is recommended to wait 4 – 5 mins before to switching it
OFF (« memorize » the GPS precision)
The GSM – GPS Docking has an Input / output « Master / Slave ». This mode of synchronization
between several CP 540's is very useful for the timekeeper, to guarantee absolute precision between
different systems.
For example: System A (Master) and the back-up system B (Slave).
Connect the CP 540 A « Master » to CP 540 B « Slave » with the special cable HL540-11.
The CP 540 A is synchronized with the Time of Day, manually or with GPS.
The CP 540 B is automatically synchronized by the CP 540 A by choosing Master/Slave in the
Synchro Menu.
If the Main system A is disconnected or communication fails, the back-up system B will operate with its
own time of base.
The Drift (DEV) described later « Synchronization by GPS » is also into the mode. Thus, if the Main
System A is again operational, it will take its main function as Master if the Drift is lower that 100 µsec.
All information is of course printed.
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