User manual WTS Ver.1.16
Seite 30 von 52
9.12.1 RS485 SERIAL CONNECTION
If the RS485 network exceeds 100 metres in length or baud-rate over 9600 are
used, close the two jumpers, called "RS-485 termination", to activate two 120
ohm terminating resistors between the ‘+’ and ‘–’ terminals of the line, on the
terminal strip of the furthest instruments. Should there be different
instruments or converters, refer to the specific manuals to determine whether
it is necessary to connect the above-mentioned resistors.
9.12.2 DIRECT CONNECTION BETWEEN RS485 AND RS232 WITHOUT CONVERTER
Since a two-wire RS485 output may be used directly on the RS-232 input of a PC or remote
display, it is possible to implement instrument connection to an RS-232 port in the following
manner:
This type of connection allows A SINGLE instrument to be used in a
ONE WAY mode.
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