User's Manual

29/OCT/2014 REVIEW DRAFT — CISCO CONFIDENTIAL
5-6
Cisco IR500 Series WPAN Gateway and Range Extender Installation and Configuration Guide
Chapter 5 Operation and Configuration
Information about Raw Socket Transport and MAP-T
Raw Socket Configurations
Raw Socket transport uses a client-server model on the WPAN gateway. The WPAN gateway can be
either a server or a client but not both. At most one server and multiple clients can be configured on a
single asynchronous serial line.
Figure 5-2, Figure 5-3, and Figure 5-4 show three different Raw Socket configurations and scenarios
in
volving the W
PAN gateway. In these examples, serial data is transferred between RTUs and a utility
management system across an IP network that includes several CGR 1000 and CGR 2010 routers.
Figure 5-2 Raw Socket and Client/Server Setup on Routers
Application communicates
through COM ports
CGR 1000
Series Routers
(Clients)
CGR 2010
(Server)
RS232 or
RS485
IP Infrastructure
Serial interfaces
SCADA
Server
391924
RTUs
WPAN Range
Extenders
WPAN
Gateways
(Clients)
Raw Socket Master and
Client set-up on routers
In Figure 5-2, a Raw Socket CGR1000 router client receives streams of serial data from the WPAN
gateway attached RTUs and accumulates the data before placing it into packets. The CGR 2010 router
acts as a Raw Socket server, listening for TCP connection requests from the WPAN gateway, which are
configured as Raw Socket clients.The WPAN gateway Raw Socket client initiates a TCP connection with
the CGR2010 Raw Socket server, and sends the packetized data across the IP network to the CGR2010
Raw Socket server, which retrieves the serial data from the packets and sends it to the serial interface,
and on to the SCADA server.
Figure 5-3 Raw Socket Client/Server Setup between Routers and SCADA Server with IP/Serial
Redirector Software
Raw Socket Master and Client set-up
between routers and SCADA server
Application communicates
through COM ports mapped
to IPv4 and TCP ports by
IP/Serial redirector software
(as long as the WPAN
gateway does not support
Raw Socket UDP)
CGR 1000
Series Routers
(Clients)
CGR 2010
(Server)
IP Infrastructure
Ethernet
SCADA
Server
391925
RS232 or
RS485
RTUs
WPAN Range
Extenders
WPAN
Gateways
(Clients)
In Figure 5-3, a Raw Socket CGR1000 router client receives streams of serial data from the WPAN
gateway attached RTUs and accumulates the data before placing it into packets. The CGR1000 Raw
Socket clients initiates a TCP connection with the SCADA server, and sends the packetized data across
the IP network to the SCADA server. The SCADA server communicates through COM ports mapped to
IP and TCP/UDP ports, by IP/Serial Redirector software.