CEL-MAR DES-300, User Manual

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7.2. POWERING THE SENSORS FROM THE MODULE ADA-401WP AND 12VDC POWER SUPPLY
The following points do not relate to temperature sensor in version DES-300-TE.
a) connect the bus to terminal block, described as below:
VDD – powering the bus +5VDC, DQ – 1-WIRE data transmission, GND – signal ground, +12VDC – powering from additional 12VDC
power supply.
ATTENTION !!!
in case of powering sensor from additional power supply NOT connect the power VDD from the ADA-401WP module to VDD terminal
block of DES-300 sensor.
Connection may damage the ADA-401WP module!
b) after connection 1-WIRE BUS to ter12VDC, DQ, GND:
- set the PWR switch to 12V position,
- fix the rear panel of sensor on electro-installation box or a wall,
- insert the PCB to the cover, terminals to inside,
- put the cover on rear panel.
9
DES-300
+
12
V
D
C
N
C
DQ / 1-W
+12VDC – additional power supply
VDD – not connected
D
Q
G
N
D
V
D
D
GND
If other lines are not used can
be combined together and
insulate, for keeping the
continuity of the cable wires.
-12VDC – additional power supply