Table 8 DIP switch configuration of RS-485 output
Switch number Result
Switch 1 Switch 2 Switch 3 Switch 4 Communication mode
ON ON ON ON RS-485 2-wire half-duplex (default)
ON OFF OFF OFF RS-485 4-wire full-duplex
OFF OFF OFF OFF RS-422 full-duplex
Switch 5 Termination resistor
ON Use built-in 120 Ω termination
OFF Use external or no termination (default)
Switch 6 Transmit bias resistor
ON Use external or no bias resistor
OFF Use built-in 1.2 kΩ transmit bias resistor (default)
Switch 7 Receive bias resistor
ON Use external or no bias resistor (default)
OFF Use built-in 1.2 kΩ receive bias resistor
Switch 8 is not used.
DGA monitor is wired for 2-wire communication so do not change
the communication mode.
CAUTION!
4.8 Connecting Ethernet
• Shielded outdoor Ethernet cable with a RJ45 connector for the permanent
Ethernet connection
• Protection shell for Ethernet connector
Ethernet connector ETH1 inside the DGA monitor is intended for temporary local
use only. For a permanent network connection, use the Ethernet connector under
the DGA monitor.
OPT100 Installation Guide M211857EN-R
52
To Next Page
Loading...