DGH A1000 series Gebruikershandleiding - Pagina 8
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Pagina afdrukkenA1000 & A2000 USERS MANUAL 8
A2000 RS-485 TERMINATIONS
Proper biasing and termination resistors in the A2000 may be enabled by
using the internal jumpers contained in the A2000. Figure 3 shows the
location of the jumpers on the A2000 printed circuit board. The jumpers
are shown in the factory setting to enable a resistor, insert a jumper into
the jack position adjacent to the resistor nomenclature written on the
A2000 printed circuit board.
NOTE: The RS-485 IN +1K and -1K jumpers should be installed when
the A2000 is used as a RS-232/RS-485 converter.
FACTORY RS-485 TERMINATION SETTINGS
A1000: 300 BAUD, +1K, -1K on RS-485 IN & RS-485 OUT connectors
enabled, all other switches off.
A2000: 300 BAUD, +1K, -1K, on RS-485 IN & RS-485 OUT enabled via
internal jumpers, all other termination jumpers disabled.
Figure 3. A2000 jumper locations.