IP Gateway
ToolBox
(over IP)
MOSCAD
Programming
ToolBox
(over IP)
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.
SCADA Central
LINE 1
IP Gateway
(Proxy MIB)
RS232
MDLC Network
Terminal Server
LINE 1
RS232
MOSCAD
MOSCAD
RTU IP1
RTU IP2
2-5
Ethernet
IP Network
LINE 1
LINE 1
MOSCAD
RTU IP3
System Overview
Ethernet
Terminal Server
LINE 1
MOSCAD
RTU IP4