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MDS iNET 900 Series User’s Guide
MDS 05-2806A01, Rev. E.1
Invisible place holder
Figure 1-5. Multiple Protocol Network
By using a single radio, the cost of deployment is cut in half. Beyond
requiring only one radio instead of two, the biggest cost reduction comes
from using half of the required infrastructure at the remote site: one
antenna, one feedline, one lightning protector and ancillary hardware.
Other cost reductions come from the system as a whole, such as reduced
management requirements. And above all, the potential for future appli-
cations that run over Ethernet and IP, such as video for remote surveil-
lance.
1.2.5 Wireless LAN with Mixed Services
The transceiver is an excellent solution for a long-range industrial wire-
less LAN. It offers several advantages over commercial solutions—pri-
marily improved performance over extended distances. The rugged
construction of the radio and its extended temperature range make it an
ideal solution even in harsh locations. In extreme environments, a
simple NEMA enclosure is sufficient to house the unit.
The transceiver trades higher speed for longer range. Commercial
802.11b solutions are designed to provide service to relatively small
areas such as offices, warehouses and homes. They provide high data
rates but have limited range. The iNET 900 transmits at a higher power
level, uses a different frequency band, has higher sensitivity, and a nar-
rower channel to concentrate the radio energy and reach farther dis-
tances. It is designed for industrial operation from the ground up.
IP-based devices that may be used with the transceiver include a new
breed of more powerful Remote Terminal Units (RTUs) and Program-
mable Logic Controllers (PLCs). These, as well as other devices, may
be used in applications ranging from SCADA/telemetry monitoring,
web-based video, security monitoring, and voice over IP.
Figure 1-6
shows a typical wireless IP network.
NETview
SCADA Host
Total Flow
Access Point
Remote Serial
Remote Serial
SCADA Host
Modbus/IP
Remote Serial
Access Point
RTU
Flow Meter
EIA-232
EIA-232
EIA-232
EIA-232
EIA-232
EIA-232
ROUTER
HUB
Serial
Device
Serial
Device
Serial
Device
Serial
Device
HUB
HUB
HUB
WAN
Summary of Contents for iNET 900 Series
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