SR05-D1A3-PV manual v1801 34/83
defined state when no transmission is occurring, a pull up and pull down resistor are
recommended. Typical values for both resistors are in the range from 650 to 850 Ω.
Figure 5.8.1.2 Connection of SR05-D1A3-PV to an RS-485 network. SR05-D1A3-PV is
powered by an external power supply of 5 to 30 VDC.