MDS SD4TM

Secure, Long Range IP/Ethernet

August 2007

Product Presentation

Agenda

• Product Positioning

• Product Overview

• Enhanced Benefits

• Network Scenarios

• SD4 and IP/Ethernet

• Latest Firmware Features

GE MDS SD Series Digital Radio Transceiver

Product Positioning

• Increased demand for Ethernet and TCP/IP technology to facilitate the operation and maintenance of SCADA systems

• Users of radio communications in Utility SCADA are concerned with an increasing “noise floor” and the potential for radio interference in the unlicensed bands (ISM Band WiLAN)

• Regulatory changes require radio communications with greater spectral efficiency and increased cyber security

MDS SD4 – Market Demands

MDS SD4 - Product Positioning

Secure, Long-Range IP/Ethernet communications for SCADA applications

• Serial and Ethernet interfaces . . . Future-proof technology migration onto IP networks

• AES 128-bit encryption . . . For secure communications and regulatory compliance

• Backwards Compatible . . . Seamless integration into existing MDS 4710/4790 systems

• Store & Forward . . . Spectrum saving feature for repeater sites using Store & Forward function.

• Media Access Control . . . Enhanced collision avoidance technology using Media Access Control (MAC) feature.

Product Overview

MDS SD4 – Features & Benefits1. Application Flexibility

• Low-power consumption . . . Sleep mode reduces power usage by up to 50%

• Long range wireless . . . Twice the receive sensitivity for more range and less cost of infrastructure (-112 dBm @ 9600bps)

• Serial and Ethernet interfaces . . . Future-proof technology migration onto IP

networks

• Backwards Compatible . . . Seamless integration into existing MDS 4710/4790 systems

• Software defined . . . Single hardware platform configurable for 6.25, 12.5 kHz or 25 kHz channels

2. Industrially Hardened

• Rugged . . . Class 1, Div 2 for Hazardous Locations and IEEE 1613 for noise immunity

3. Reliable & Scalable

• Licensed Band Operation . . . For exclusive-use, non-shared operation in 400 MHz band

4. Secure

• AES 128-bit encryption . . . For secure communications

Flexible Communications

COM2 Serial Port• RS232 or RS485• Serial-to-Serial• IP-to-Serial

Power Port • 10-30 VDC

COM1 Serial Port•Dual Function•Data or

Management•Local

Configuration

Antenna Port• 12.5 kHz channel spacing (ICASA)• AES-128 Encryption• Remote Management

Ethernet Port•10/100 BaseT •Data and firmware

load•HTML Configuration

SD4 Operating Modes

• Packet with MAC• Enhanced mode for Media Access Control and Store &

Forward functions.• Required for AES-encryption & Multi-Host feature• Over The Air (OTA) format is NOT compatible with 4710

• Packet• Default mode for SD4-ES and SD4-SS Modules• Required for AES-encryption & Multi-Host feature• Over The Air (OTA) format is NOT compatible with 4710

• Transparent• OTA format is compatible with 4710• Best choice for new SD4 features in mixed 4710 networks• Supports Data on COM1 and IP/Ethernet

• x710• Mode for integration into legacy 4710 networks only

SD4 Duplex Repeater

• Full Duplex Radio Module for Master / Repeater Installations

• Options for Redundancy on RF channel

• Comes fitted with factory tuned Duplexer

• IP-to-Serial – with integrated terminal server

• AES 128-bit encryption

• Menu System for ease of configuration

Confidential - Internal Use Only

Enhanced Benefits

Built-in Web Configuration Page• Uses web based SD Device Manager for easy configuration of all SD

Series parameters including transmit and receive frequencies, channel size and modem speed

• SD Device Manager is also used to access important performance and maintenance information

• SD Series configuration and maintenance can also be performed using Telnet and HyperTerminal sessions

Spectrum Saving Store & Forward• Saves radio spectrum by re-using frequencies to repeat signals

• Extend Communication paths using single radio Store and Forward

• Used in Packet with MAC mode for radio network management and collision avoidance

SD4 Store&Forward

•Single Freq. Repeater

Host ComputerRemote Device

Comprehensive Network Management• Manage your SD network using PulseNET NMS

• PulseNET is purpose-built for industrial communications and includes sophisticated and meaningful pre-built workflows along with intuitive graphical representations of the network

• Access historical network and equipment performance trending to optimize availability through predictive maintenance

• A comprehensive NMS system with drill-down capabilities from the network layer to the device level.

Network Scenarios

Simple IP/Serial Application

SD4 with Repeater + Local RTU/PLC

Repeater

GE MDS SD4

Remote

GE MDS SD4Remote

PLC/RTU

Host Computer

SD4 at Remote Locations

•Serial + ETH & Encryption

•Connects to RTU/PLC

SD4 Duplex Repeater

•Serial + ETH for PLC Interface

SD4 installed at Master Site

•Serial + ETH & Encryption

•Connects to Host Computer

•Connects to Host PLC

MDS SD4 and IP/EthernetOptimized

Communications

Frame/Packet/Message Structure

Eth ICMP dataping

Eth IP UDP SNMP dataSNMP

Eth IP TCP FTP dataFTP

Ethernet and IP protocols add information to data payloads to allow communications to occur in layers. Industrial Protocols like Modbus TCP/IP works the same way

Eth IP TCP MB hdr datadataModbus TCP/IP

18 20 20 8 10 (Size in bytes)

Ethernet frame

SCADA to RTU CommunicationsAll SCADA protocols work with master-slave model

Modbus TCPDNP3 over IPAny serial polled protocol encapsulated over IP

Virtual data transfer

Actual data transfer

Eth IP TCP RTU#1Query

PC Server

SCADA Software

TCPServer

RTU#1 Query

Eth

IP

TCP

TCPClient

RTU#1

Eth

IP

TCP

Modbus data is encapsulated within TCP/IP/Ethernet frames/packets

The RTU receives the Ethernet frame and extracts the data before processing it

RTU#1 Query

Ethernet frame

Wireless Ethernet frame (80+ bytes)

Ethernet frame

Wireless Ethernet Bridges

TCPServer

RTU#1

A bridge transmits frames at the Ethernet layer level Every wireless bridge works this way

W Eth

Eth IP TCP RTU#1Query

Eth IP TCP RTU#1Query Eth IP TCP RTU#1Query

PC Server

SCADA Software

TCPClient

W

Eth

IP

TCP

Virtual data transfer

W Eth

Eth

IP

TCP

RTU#1 Query

RTU#1 Query

Ethernet frame Ethernet frame

MDS SD4 Optimized Communications

TCPServer

SD4 eliminates TCP/IP overheadWorks with: Modbus TCP/IPDNP3 over IPAny serial polled protocol encapsulated over IP

Eth IP TCP RTU#1Query

PC Server

SCADA Software

TCPClient

Eth

IP

TCP

Eth

IP

TCP

TCPClient

Eth

IP

TCP

TCPServer

RTU#1

Eth IP TCP RTU#1Query

Eth

IP

TCP

SD4 SD4

Wireless SD4 frame (20+ bytes)

RTU#1Query

TCP/IP/Ethernet headers are regenerated by the receiving SD4 radio. The RTU receives exactly the same Modbus data as if it was connected directly to PC Server

TCP/IP/Ethernet headers are removed by the sending SD4 radio

Only the data portion is transmitted over the air

W Eth

Wireless Ethernet frame (80+ bytes)

Eth IP TCP RTU#1QueryW

W Eth

192.168.1.100

192.168.1.101 192.168.1.201

192.168.1.200

RTU#1 Query

RTU#1 Query

SD4 and IP/Ethernet Data

• All IP connections terminate locally at the SD radio• The transmitting SD extracts RTU data packet content and

broadcasts it over-the-air• The receiving SD regenerates the TCP/UDP data packet• Makes efficient use of the channel, but has limitations• SD radios don’t route or bridge Ethernet data, it encapsulates

industrial protocols in IP payloads

Latest FirmwareFeatures

SD4 New Features

• New in the latest firmware revision for the SD series radios (release 4.1.5)

– Extended Ethernet capability; supporting up to 3 simultaneous TCP/IP Client/Server connections to hosts and devices and “ping” over the air to remote devices.

– Extended Over The Air data speeds; now up to 19200bps19200bps on a simplex 12,5Khz channel. Double the previous rates.

– Added maintenance functions e.g. reprogram remotes over the air, modem type, frequencies etc.

– Simultaneous use of COM1, COM2 and ETH ports for data, acting like a full gateway for device connectivity.

– WEB interface for easy programming with setup wizards– MAC network management with reduced overhead and guaranteed

zero collisions over the air.– Store & Forward functionality for spectrum saving repeaters.– Terminal Server feature for Eth to Serial Conversion.– Full support for exception based protocols e.g. DNP3 & IEC 60870-5-

101/104.