21
I/O Port
I/O Port
Pin Assignment of I/O Port
Audio In/Out
AUDIO IN is intended for future
expansions and is not currently supported.
Sensor In and Relay Out
Using the I/O Receptacle
Insert a small slotted screwdriver into the
upper or lower slot of the hole you want to
connect a wire to (AWG No. 26 to 20).
Hold down the screwdriver and insert the
wire, then release the screwdriver.
Do not use excessive force when inserting
the screwdriver into the slot. Doing so may
result in damage.
Repeat this procedure to connect all
required wires.
Wiring Diagram for Audio
Output
Wiring Diagram for Sensor
Input
Pin NO. AUDIO
1
AUDIO IN
2
AUDIO IN GND
3
AUDIO OUT
4
AUDIO OUT GND
Caution
Pin NO. SENSOR
5
SENSOR IN 1
6
SENSOR IN 1 GND
7
SENSOR IN 2
8
SENSOR IN 2 GND
9
SENSOR IN 3
10
SENSOR IN 3 GND
11
SENSOR IN 4
12
SENSOR IN 4 GND
13
RELAY
14
RELAY OUTPUT –
Caution
1
2
3
47 k
Ω
Inside of this unit
Outside
Example)
Headphone
Audio
Codec
220
μ
F
RL=16
Ω
/32
Ω
Vcc = 5 V
Sensor In 1, 2, 3, 4
200
Ω
Inside of this unit
Outside
Sensor In 1G, 2G, 3G, 4G
(Example)
