IM 50.560CA UA (B/4-03) 57
DEPOLOX
®
3 PLUS RESIDUAL ANALYZER
Both ends of the bus cable must be connected to a moving load Rt (150
Ohm). Symmetry is assured at only one point of the bus. With a voltage
supply of 5 V, the resistors Rd and Ru (390 Ohm each) connect to ground
and 5 V. These resistor values fit for transmission of up to 19200 Bit/s and
a maximum bus length of 1200 m. Symmetry and bus ends should be
executed in the same way at potentially isolated and non-isolated bus
systems.
Resistors may be switched on via DIP switch in the terminals box. (See
Figure 3.8.)
Figure 3.8 - Terminals Box
3.7.2.3 Bus Connection
Figure 3.9 - Potentially Not Isolated RS485 Bus System
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