13.4.21 RTK AMS
When used with the optional RTK Indicium Alarm Management System the user needs to
set the protocol to RTK AMS Slave Protocol in the drop down menu for communication to be
established between the RTK 725B and the associated PC based Indicium software.
For more details on how to set up Indicium for use with RTK 725B annunciators please refer to
the separate Indicium operating & instruction manual.
13.4.22 Wharton Format
The RTK 725B comm’s card can be connected to the Wharton 4850 and 4860 time sync unit
which can be used to synchronise the clock on the RTK 725B with GPS.
The Wharton unit uses Wharton Format 1 message to send the time to the RTK 725B every
second. It then uses the Sync input to synchronise the unit to millisecond accuracy.
For this the comm’s card need to be set for sync pulse to external Falling Edge.
The connections between the Wharton Unit and the RTK 725B are:
Wharton RS485 S1 RTK 725B
1(PPS) + Sync
5(Gnd) - Sync
8(A) TxA, RxA
9(B) TxB, RxB
13.4.23 Mapping
Mapping is configured using the mapping spreadsheet. The spreadsheet is used to map port
data to channels and also to setup the Modbus master block requests.
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