Microwave Data Systems iNET 900 Series, User Manual

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MDS 05-2806A01, Rev. E.1 MDS iNET 900 Series User’s Guide 9
Invisible place holder
Figure 1-6. Extended-Range LAN with Mixed Applications
1.2.6 Upgrading Older Wireless Network with
Serial Interfaces
Millions of wireless data products have been sold in the last two decades
for licensed and license-free operation, many of them manufactured by
Microwave Data Systems. There are several ways that these systems can
benefit from incorporating MDS iNET 900 equipment. The chief advan-
tages are interface flexibility (serial and Ethernet in one unit), and higher
data throughput. By taking advantage of its built-in serial and Ethernet
interfaces, the transceiver is well suited to replace leased lines, dial-up
lines, or existing 900 MHz data transceivers.
Replacing Legacy Wireless Products
In most cases, legacy radio transceivers supporting serial-interface
equipment can be replaced with iNET 900 transceivers. Legacy equip-
ment can be connected to the transceiver through the
COM1 or COM2
port with a DB-25 to DB-9 cable wired for EIA-232 signaling. The
COM2 port supports all standard EIA-232 signaling and acts as a
data-terminal equipment device (DTE).
NOTE: Several previous MDS-brand products had non-standard
signal lines on their interface connectors (for example, to
control sleep functions and alarm lines). These special func-
tions are not provided nor supported by the iNET transceiver.
Consult equipment manuals for complete pinout information.
Supplement legacy wireless network with IP services
The MDS iNET 900 Dual Gateway model can support up to two serial
devices and one Ethernet connection at the same time. The serial inter-
faces (COM1 and COM2) operate in two different modes: Connection-
less UDP and connection-orientated TCP.
NMS Control
Point
SCADA Host
Modbus/IP
Access Point
Remote Bridge
Printer
Remote Bridge
IP Camera
IP/Ethernet Device
IP/Ethernet Device
IP/Ethernet Device