ONICON F-3100 MOD - Manual (Page 9)

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F-3100-MOD Flow Meter Network Interface Installation Guide 05/14 - 0725-1 Page 9
1.6.2 Biasing and Termination
The ONICON F-3100 does not provide biasing voltage to the RS485 network. An external
120Ω resistor (not provided) should be connected across the terminals as shown below
when the meter is installed at the end of the line.
F-3100 Terminals
+
-
120 Ohm
Incoming cable
Leave shield
unterminated
7
8
Black
Red