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Operating Instructions
8-channel light barrier multiplexer
IMX-A840
GB
5. Connections
Wires are connected with two rows of 23 terminals (see
picture 1
).
picture 1:
8-CHANNEL
INFRARED AUTOMATIC
MULTIPLEXER
FUNCTION
Switching mode
Transmit Power
Level-Delay
Range
Switching ON-Delay
Switching OFF-Delay
OPTION
1-7 green
1
2
3
4
6
7
PROGRAM MODE
TEST MODE
OPTION
1-7
1-7 green
1 red
2 red
MEANING
Signal strength
no Transmitter detected
no Receiver detected
OPTION 8
green
light
low
on
short
red
dark
high
off
long
OPTION 1-7 red
OPTION 1-7 red
TEST
RESET
1
24
2
25
3
26
4
27
5
28
6
29
7
30
8
31
9
32
10
33
11
34
12
35
13
36
14
37
15
38
16
39
17
40
18
41
19
42
20
43
21
44
22
45
23
46
Number of terminals
4
5
6
7
8
3
2
1
V. SUPPLY
PNP
2
1
3
4
5
6
7
8
Voltage supply
Ground Alarm
Relay outputs
following
slave
devices
from
master
IR-transmitter
IR-receiver
red
black
red
red
black
black
black
yellow
yellow
yellow
red
yellow
shield
shield
shield
shield
picture 2: Wiring diagram
5.1 Voltage supply
1
Before connecting the multiplexer, look on the side and
check if the power supply is the same as the connection
value. The power supply will be connected on the terminal
no. 22 and no. 23 (see
picture 1
).
For devices with direct current, terminal no. 22 is positive
and terminal no. 23 is neutral.
24V DC to be provided by a suitably rated UL Listed Class
2 power supply.
Caution!
The AC-supply devices are isolated from main. A grounded
connection on the low voltage side is required.
In synchronized operation of multiple devices (master/slave),
we recommend installation using short connecting cables.
5.2 Transmitter (IT...)
1
Eight infrared transmitters can be connected to one 8-channel
multiplexer. Connect the transmitters as shown in
table 1
.
Transmitter Plus (red)
2
Ground (black)
2
1
No. 3
No. 1
2
No. 2
No. 1
3
No. 27
No. 26
4
No. 28
No. 26
5
No. 30
No. 29
6
No. 31
No. 29
7
No. 33
No. 32
8
No. 34
No. 32
table 1: Transmitter terminals
5.3 Receiver (IR...)
1
Eight infrared receivers can be connected to one 8-channel
multipexer. Connect the receivers as shown in
table 2
.
Receiver
Plus (yellow)
3
Ground (shield)
3
1
No. 36
No. 35
2
No. 37
No. 35
3
No. 39
No. 38
4
No. 40
No. 38
5
No. 42
No. 41
6
No. 43
No. 41
7
No. 45
No. 44
8
No. 46
No. 44
table 2: Receiver terminals
5.4 Transistor output
The multiplexer has one relay
output for each channel. The
relay (form A, see picture 3)
can switch a maximum current
of 5 A at 250 V AC or 24 V DC.
Connect the relays as shown
in
table 3
.
NO
COM
picture 3: Relay output
Channel
COM
NO
1
No. 6
No. 7
2
No. 8
No. 9
3
No. 10
No. 11
4
No. 12
No. 13
5
No. 14
No. 15
6
No. 16
No. 17
7
No. 18
No. 19
8
No. 20
No. 21
table 3: Relay terminals
1
Inscription front label
2
Core coding transmitter cable
3
Core coding receiver cable
