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MIW-RSCOH-R-EN-000 - 25 / 03 / 2020
6 - 10
WIRING AND CONNECTIONS
Wiring diagram
RJ45 sockets (Power over Modbus)
Pin 1
24 VDC
Supply voltage
Pin 2
Pin 3
A
Modbus RTU communication, signal A
Pin 4
Pin 5
/B
Modbus RTU communication, signal /B
Pin 6
Pin 7
GND
Ground, supply voltage
Pin 8
/B
A
GND
24 VDC
8 mm
8 mm
8 mm
8 mm
RJ45
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
3
4
5
6
3
4
Terminal Block 1
VIN
Supply voltage 24 VDC
GND
Supply voltage, ground
A
Modbus RTU communication, signal A
/B
Modbus RTU communication, signal /B
Terminal Block 2
AO1
Analogue / modulating output 1 for temperature
measurement (0—10 VDC / 0—20 mA / PWM)
GND
Ground AO1
AO2
Analogue / modulating output 2 for relative humidity
measurement (0—10 VDC / 0—20 mA / PWM)
GND
Ground AO2
AO3
Analogue / modulating output 3 for CO / NO
2
measurement
(0—10 VDC / 0—20 mA / PWM)
GND
Ground AO3
ATTENTION
The unit needs to be supplied via the RJ45 connector or via the connection
terminals. Do not connect the device via the RJ45 connector and the terminal
block simultaneously!
ATTENTION
This product is not suited for 3-wire connection. It has separate grounds for power
supply and analogue output. Connecting both grounds together might result in
incorrect measurements.
MOUNTING & OPERATING INSTRUCTIONS IN STEPS
Before you start mounting the unit, read carefully
“Safety and Precautions”
.
Choose a smooth surface for installation (a wall, panel and etc.).
ATTENTION
When planning the installation, allow enough clearance for maintenance and
service. Mount the sensor in a well-ventilated area.
RSCOH-R
MULTIFUNCTIONAL
ROOM TRANSMITTER
