Motorola V186 User Manual - Page 115

MDLC over Tetra, through RS232 using standard PPP Point to Point Protocol.

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Communications STS SCADA Central Ethernet LINE 1 IP RS-232 Gateway IP Routing Net iDEN infrastructure Base Station Home Agent Interface Router Mobile Data Gateway LINE 1 STS RS-232 iDEN iM1000 Packet Data modem RTU-A iDEN iM1000 Packet Data modem RTU-B MDLC over Tetra ACE3600 RTUs can be connected to a Tetra radio. Tetra infrastructure and radio should support packet data. The connection to Tetra can be made via LAN or via radio. An IP Gateway or an RTU with and Ethernet plug-in or on-board port can be connected to a LAN. In Tetra terms, an RTU that is connected through LAN is called a LAN RTU. An RTU that is connected to a radio is called a PEI (Peripheral Interface) RTU. A PEI RTU is connected to a radio through RS232 using standard PPP (Point to Point Protocol). In the figure below, the SCADA central and IP Gateway are connected via LAN to Tetra infrastructure. Each RTU has an MTM700 or MTM800 radio connected to its MDLC over IP Port using PPP. A unique IP address is assigned to each RTU according to its radio's identifier (SSI). All communication between RTUs and the IP Gateway involve sending datagrams in packets over the Internet (IP). A PC running ACE3600 STS can be connected directly to an RTU or operate remotely over IP. 111

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Communications
RS-232
LINE 1
LINE 1
RS-232
SCADA
Central
STS
IP
Routing
Net
Base
Station
Interface
Router
RTU-A
iDEN iM1000
Packet Data
modem
Ethernet
IP
Gateway
RTU-B
iDEN iM1000
Packet Data
modem
Home
Agent
Mobile
Data
Gateway
iDEN
infrastructure
STS
MDLC over Tetra
ACE3600 RTUs can be connected to a Tetra radio. Tetra infrastructure and radio should
support packet data.
The connection to Tetra can be made via LAN or via radio. An IP Gateway or an RTU
with and Ethernet plug-in or on-board port can be connected to a LAN. In Tetra terms, an
RTU that is connected through LAN is called a LAN RTU. An RTU that is connected to
a radio is called a PEI (Peripheral Interface) RTU. A PEI RTU is connected to a radio
through RS232 using standard PPP (Point to Point Protocol).
In the figure below, the SCADA central and IP Gateway are connected via LAN to Tetra
infrastructure. Each RTU has an MTM700 or MTM800 radio connected to its MDLC
over IP Port using PPP. A unique IP address is assigned to each RTU according to its
radio’s identifier (SSI). All communication between RTUs and the IP Gateway involve
sending datagrams in packets over the Internet (IP). A PC running ACE3600 STS can be
connected directly to an RTU or operate remotely over IP.
111