Miscellaneous
38
I/O Port
Pin Assignment of I/O Port
Sensor In
Alarm Out
RS-422/485
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.
Caution
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 1 for Sensor Input
Pin NO. SENSOR IN
1
3.3 v
2
IN_8 –
3
IN_8 +
4
IN_7 –
5
IN_7 +
6
IN_6 –
7
IN_6 +
8
IN_5 –
9
IN_5 +
10
IN_4 –
11
IN_4 +
12
IN_3 –
13
IN_3 +
14
IN_2 –
15
IN_2 +
16
IN_1 –
17
IN_1 +
18
GND
Pin NO. ALARM OUT
1
GND
2
OUT_8 –
3
OUT_8 +
4
OUT_7 –
5
OUT_7 +
6
OUT_6 –
7
OUT_6 +
8
OUT_5 –
9
OUT_5 +
10
OUT_4 –
11
OUT_4 +
12
OUT_3 –
13
OUT_3 +
14
OUT_2 –
15
OUT_2 +
16
OUT_1 –
17
OUT_1 +
18
GND
Pin NO.
RS-422
RS-485
19
TX–
TX–
20
TX+
TX+
21
RX–
22
RX+
1
2
3
Inside of this unit
Outside
3, 5, 7, 9, 11,
13, 15, 17 pin
(SENSOR IN+)
2.35 k
Ω
Sensor device
output:
DC 3.3 V to 24V
2, 4, 6, 8, 10,
12, 14, 16 pin
(SENSOR IN–)
