Motorola 68P02958C00-B - Manual (Page 25)

System Overview
2-5
SCADA Central
IP Gateway
ToolBox
(over IP)
Ethernet
IP Gateway
(Proxy MIB)
IP Network
MDLC Network
Ethernet
LINE 1
Terminal Server
RS232
Terminal Server
MOSCAD
RTU IP1
MOSCAD
Programming
ToolBox
(over IP)
RS232
LINE 1 LINE 1 LINE 1 LINE 1
MOSCAD
RTU IP2
MOSCAD
RTU IP3
MOSCAD
RTU IP4
Figure 2-3: Typical Configuration, MDLC via Terminal Server
MDLC via Astro IP
RTUs can be connected via SLIP connection to an ASTRO radio, which is part of an IP
network.
In the diagram below, a typical configuration is shown, with RTUs attached via SLIP over
RS232-E to ASTRO SPECTRA radios which support IP data capability. A ToolBox is
connected to one of the RTUs through either Port 2 or Port 3. The IP Gateway on Ethernet
acts as a gateway, translating between the IP and MDLC protocols.