Point-To-Point System - GE DS-SD4-1 Reference Manual

MDS 05-4670A01, Rev. E
lines coming from each remote monitor. In this type of system, there is
a modulator/demodulator (modem) at the main computer and at each
remote site, usually built into the remote monitor itself. Since the cost of
leasing a dedicated-pair phone line is quite high, wireless technology is
often used as a cost-effective alternative.
RTU
REMOTE RADIO
RTU
REMOTE RADIO
Figure 4. Typical MAS Point-to-Multipoint Network

Point-to-Point System

Where permitted, the transceiver can also be used in a point-to-point
arrangement. A point-to-point system consists of just two radios—one
serving as a Master and the other as a Remote (see Figure 5). It provides
a simplex or half-duplex communications link for the transfer of data
between two locations.
Figure 5. Typical Point-to-Point Link
SD Series Reference Manual (x710 Mode)
Invisible place holder
REMOTE RADIO
RTU
MASTER STATION
OR: SDA-Augmented
Master Station
HOST SYSTEM
Invisible place holder
RTU
REMOTE RADIO
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