Furuno VR-7000 Installation Manual page 59

How to set contact input (MC-3020D)
Use the connectors J3 to J6 on the MC-DIN Board (24P0116) to set the contact input.
See the tables on the next page.
Note 1: For contact input, use the AWG wire for jumper.
Note: The input must not exceed the range of the input voltage, to prevent malfunc-
tion.
-Setting for voltage input: 21.6V to 31.2V
-Setting for contact input: Voltage cannot be input (contact signal only).
• Input circuit for voltage input
+
DC voltage input
(21.6V to 31.2V)
-
• Input circuit for contact input
Use the AWG24 wire
for jumper.
Contact input
12V
470Ω/ 0.5W
DC12V_OUT
2.2kΩ / 1W
DIGI_IN1
DIGI_RTN1
Photocoupler circuit
GND(DC12V)
GND
12V
470Ω/ 0.5W
DC12V_OUT
2.2kΩ / 1W
DIGI_IN1
DIGI_RTN1
Photocoupler circuit
GND(DC12V)
GND
2. WIRING
5V
Register
to Processor unit
circuit
GND
5V
Register
to Processor unit
circuit
GND
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