05-4446A01, Rev. C
Mercury Reference Manual
11
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 radio provides the poten-
tial for future applications that run over Ethernet and IP, such as video
for remote surveillance.
1.3.6 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
802.11a/b/g 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 Mercury transmits at a higher power
level, uses a different frequency band, has higher sensitivity, and a nar-
rower channel to concentrate the radio energy, reaching farther dis-
tances. It is designed for industrial operation from the ground up.
IP-based devices that may be used with the transceiver include new,
powerful Remote Terminal Units (RTUs) and Programmable 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 1-8
shows a typ-
ical wireless IP network.
Invisible place holder
Figure 1-8. Extended-Range LAN with Mixed Applications
NMS Control
Point
SCADA Host
Modbus/IP
Access Point
Remote Bridge
Printer
IP/Ethernet
IP/Ethernet
Remote Bridge
IP/Ethernet
IP Camera
Summary of Contents for MDS Mercury Series
Page 2: ......
Page 10: ...2 Mercury Reference Manual 05 4446A01 Rev C ...
Page 28: ...20 Mercury Reference Manual 05 4446A01 Rev C ...
Page 36: ...28 Mercury Reference Manual 05 4446A01 Rev C ...
Page 140: ...132 Mercury Reference Manual 05 4446A01 Rev C ...
Page 142: ...134 Mercury Reference Manual 05 4446A01 Rev C ...
Page 156: ...148 Mercury Reference Manual 05 4446A01 Rev C ...
Page 168: ...160 Mercury Reference Manual 05 4446A01 Rev C ...
Page 184: ...176 Mercury Reference Manual 05 4446A01 Rev C ...
Page 194: ...I 10 Mercury Reference Manual 05 4446A01 Rev C ...