Furuno FAR-3230S-BB, Installation Manual

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2. WIRING
2-40
2.6.3 How to set jumper blocks in the sensor adapters
MC-3000S
See the jumper blocks on the MC-CS Board (24P0114) referring to the tables that fol-
low.
MC-CS Board (24P0114)
Rotary switch S2:
Use the rotary switch (S2) to set the Modbus address when setting connectors J4/J5
to Modbus. The Modbus address set at J4/J5 in the network is not used. When setting
J4/J5 to IEC61162-1/2, use the default setting (“0”).
Jumper block:
Use the jumper block J19 to set the termination resistor on/off for the MODBUS com-
munication on the connector J1. For the first and last sensor adapter in a series, their
termination resistors must be set to ON. Use the MC-CS Board with the default setting
because it becomes the “first” adapter in a series.
Set the jumper blocks J14 through J17 to turn the termination resistors on connectors
J4 through J7, respectively.
<Termination resistor ON>
• When setting the starting/ending terminal for the multipoint, or the multipoint is not
connected (CH1 to 4).
• When setting the starting/ending terminal for Modbus (CH1, CH2)
Jumper block J19 Connector J1
1-2 SHORT Termination resistor: ON (default setting)
2-3 OPEN
1-2 OPEN Termination resistor: OFF
2-3 SHORT
S2
J14 J22 J23
J15 J16 J17
J19 J20 J21