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INM 725B Rev 21
81
13 .2 Standard Comms Version
RTK 725B annunciators supplied with standard comms are provided with 2 ports:
• Port-2 provides an isolated RS485 Port
• Port-4 provides a standard 8P8C (RJ45) Ethernet connection
Serial Ports
RTK 725B annunciators supplied with standard comms are provided with the following
communications protocols via Port-1 and Port-2
• RTK AMS
• Modbus RTU
• Modbus ASCII
• Wharton Time Sync
Communications Addresses
Each port within the comms card is provided with a software configurable node address.
Port 1
Connection Details
An Industry standard RJ11 connector is provided on the XS/FC485 communication card which
provides the following connections:-
1 . TXa
2 . No Connection
3 . OV
4 . RXb
5 . TXb
6 . RXa
PG4
1
2
3
4
5
6