Motorola V186 User Manual - Page 116

under 'Local Site IP Address'., infrastructure LAN system and not directly. - user manual

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STS SCADA Central Ethernet LINE 1 IP RS-232 Gateway IP Routing Net Tetra Infrastructure SW MI Communications LINE 1 STS RS-232 Tetra MTP700 radio RTU-A Tetra MTP700 radio RTU-B The STS can communicate with remote RTUs over IP using the Tetra infrastructure. The PC running the STS is connected to the Tetra radio (e.g. MTH500 radio) or to the RTU. For this purpose, the PC should have a Tetra PD installation (as specified in the CPS user manual). After setting up the connection, the user should run the STS Communication Setup utility, select Ethernet port and specify in a focal point RTU/IP Gateway IP Address under 'Local Site IP Address'. It is important to note that RTU to RTU communication is routed through the infrastructure LAN system and not directly. Note that a paging mechanism to each site (peer) in IP conversion table makes MDLC over IP more reliable. For details, see MDLC over IP Site Paging. Tetra does not support group calls (RTU-to-RTU broadcasts). To send a frame to a group of sites, the application should send to each site individually, leaving a short wait time between each transmission (about 300 milliseconds). 112

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Communications
RS-232
LINE 1
LINE 1
RS-232
SCADA
Central
STS
IP
Routing
Net
RTU-A
Tetra
MTP700
radio
Ethernet
IP
Gateway
RTU-B
Tetra
MTP700
radio
Tetra
Infrastructure
SW MI
STS
The STS can communicate with remote RTUs over IP using the Tetra infrastructure. The
PC running the STS is connected to the Tetra radio (e.g. MTH500 radio) or to the RTU.
For this purpose, the PC should have a Tetra PD installation (as specified in the CPS user
manual).
After setting up the connection, the user should run the STS Communication Setup
utility, select Ethernet port and specify in a focal point RTU/IP Gateway IP Address
under ‘Local Site IP Address’.
It is important to note that RTU to RTU communication is routed through the
infrastructure LAN system and not directly.
Note that a paging mechanism to each site (peer) in IP conversion table makes MDLC
over IP more reliable. For details, see MDLC over IP Site Paging.
Tetra does not support group calls (RTU-to-RTU broadcasts). To send a frame to a group
of sites, the application should send to each site individually, leaving a short wait time
between each transmission (about 300 milliseconds).
112