Furuno FAR 3220, Installation Manual

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2. WIRING
2-65
2.10.3 How to set jumper blocks in the sensor adapters
MC-3000S
Set the jumper blocks on the MC-CS Board (24P0114) referring to the tables that fol-
low.
Jumper block : Use the jumper block J19 to set the termination resistor on/off for the
MODBUS communication 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).
(Terminal resistor OFF)
• When setting the terminal other than starting/ending for the multipoint (CH1 to 4).
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
Jumper block J14 Connector J4 (CH1)
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
(Not Used)
(J20/J21 are not used)
(J22/J23 are not used)
MC-CS Board (24P0114)