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10
Mercury Reference Manual
05-4446A01, Rev. C
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Figure 1-6. Backhaul Network
1.3.5 Multiple Protocols and/or Services
Prior to the introduction of Ethernet/IP-based radios, two radios were
often used to service two different types of devices (typically connected
to different SCADA hosts). A Mercury radio provides this capability
using a single remote unit. The unit’s serial port can be connected via IP
to different SCADA hosts, transporting different (or the same) proto-
cols. Both data streams are completely independent, and the transceiver
provides seamless simultaneous operation as shown in
Figure 1-7
.
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Figure 1-7. Multiple Protocol Network
MDS 4790
Master
MDS 9790
Master
MDS 9810
Master
Serial Conn.
Serial Conn.
Serial Conn.
MDS 4710 Remote
NMS Control
Point
SCADA Host
Modbus/IP
HUB
Access Point
MDS 4710 Remote
MDS 9710 Remote
MDS 9710 Remote
MDS 9810 Remote
MDS 9810 Remote
Remote Serial
Remote Serial
Remote Serial
NETWORK
ROUTER
ROUTER
Serial
Device
Serial
Device
Serial
Device
Serial
Device
Serial
Device
Serial
Device
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
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