CEL-MAR ADA-4044H Manual del usuario - Página 9
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MASTER
Fig. 6. Star type connection of devices with 2-wires RS485 interface to main 4-wires RS485 bus. Device separation from main
4-wires network, extending the main bus by a further segments of 1200m, signal amplification, possibility of connection
RS485(2W)
connector
A
B
RS485(2W)
connector
RS485(2W)
connector
additional 128 devices.
9
Rt
GND
-
-
A
B
GND
-
-
A
B
GND
-
-
RS485(2W)
connector
A
Rt
B
GND
-
-
RS485(2W)
connector
A
B
GND
-
-
RS485(2W)
connector
A
B
GND
-
-
SLAVE