Furuno FAR-3320SW Installation Manual page 88

2. WIRING
Pin # Signal name
1 AN3_IN
2 AN3_GND
3 CURR3_JP1
4 CURR3_JP2
How to set ACK input (MC-3020D)
Use the connectors J3 to J6 on the to set the ACK input for ACK1 to ACK8 as shown
below.
• Input circuit for voltage input
DC voltage input
(21.6V to 31.2V)
• Input circuit for contact input
Use NH connector
and AWG24 wire.
Contact input
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).
Pin # Signal name
1 DC12V_OUT
2 DIGI_IN1
3 DIGI_RTN1
4 GND
(DC12V)
2-52
Connector J5
In/Out Description
In Analog 3 input
- Analog 3 GND
- Analog 3 input, power current/
voltage setting jumper 1
- Analog 3 input, power current/
voltage setting jumper 1
12V
470Ω/ 0.5W
DC12V_OUT
+
DIGI_IN1
DIGI_RTN1
-
GND(DC12V)
GND
12V
470Ω/ 0.5W
DC12V_OUT
DIGI_INx
DIGI_RTNx
GND(DC12V)
GND
Connector J3
In/Out Remarks
Out ACK1 In Pin #1-#2:
short
In
Out MPYC-12
In
Power voltage
TTYCS(LA)-1
Pin #3-#4: open Pin #3-#4: short
5V
2.2kΩ / 1W
GND
Photocoupler circuit
5V
Resistor
2.2kΩ / 1W
GND
Photocoupler circuit
ACK1 ACK1
contact voltage
No connec-
tion
MPYC-12
No connec-
tion
Power current
Resistor
MC-DIN
Board
MC-DIN
Board
ACK2 ACK2
contact voltage
According to
ACK1 input