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ENG
12
SETTING RS-422A/RS-485 TERMINATION
As it is shown in the structure map, when Controller and RS-422A/RS-485 is connected,
it should be terminated according to the Cable feature of impedance on the each end of the
transmitting line to transfer the signals in long distance by controlling the reection of the signals
to the lowest.
Note
Termination: using numbers 1 and 2 PIN, turn to ON and it will be terminated.
<RS-485 Half Duplex Organization>
Controller
Division n < 32
Termination
SW1-ON
CAM n
CAM n-1
CAM 2CAM 1
TX+(DATA+)
TX-(DATA-)
RX- RX+RX+ RX- RX+ RX- RX+ RX-
SCC-C7433_7435-Eng.indd12 2008-05-20오전10:49:36