User`s guide

26 DC 900-1340I
BSC Programmers Guide
To maintain high data throughput, Freeway uses a multi-processor architecture to sup-
port the LAN and WAN services. The LAN interface is managed by a single-board com-
puter, called the server processor. It uses the commercially available VxWorks
operating system to provide a full-featured base for the LAN interface and layered ser-
vices needed by Freeway.
Figure 1–1: Freeway Configuration
WAN
Interface
Processors
Freeway
Ethernet LAN
ICP
ICP
3413
Client n
Application
WAN Protocol
Options
Industry Standard Bus
Client 2
Application
API
API
Server Software
Client 1
Application
DLI
API
DLI DLI
Commercial
Financial
Government
Military
S C A D A