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MIW-MDB-M-6-EN-000 - 07 / 09 / 2021
5 - 7
WIRING AND CONNECTIONS
RJ45 connection
/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
Pin 1
Supply voltage, 24 VDC
Pin 2
Pin 3
Modbus RTU communication, signal A
Pin 4
Pin 5
Modbus RTU communication, signal /B
Pin 6
Pin 7
Ground, supply voltage
Pin 8
ATTENTION
Make sure that supply voltages from different power sources do not come into
contact with each other. Never connect cables in the MDB-M-6 with Power wires
(pins 1,2,7 and 8), connected to different Power supplies. If the connected units
have a different Power supply, only crimp the data wires (pins 3,4,5,6) in the RJ45
connectors. (See “Wiring and Connections”).
MOUNTING INSTRUCTIONS IN STEPS
Before you start mounting the unit, read carefully
“
Safety and Precautions”
. Choose
a smooth surface for installation: a wall, panel, etc.
Follow these steps:
1.
Unscrew the front cover of the enclosure to remove it.
2.
Fix the enclosure onto the surface by means of suitable fasteners while adhering
to the mounting dimensions in
Fig. 1
Mounting dimensions
and the correct
mounting position in
Fig. 2
Mounting position
.
Fig. 1 Mounting dimensions
Fig. 2 Mounting position
82
143,3
MDB
31
Correct
Incorrect
MDB
MDB
MDB
3.
Insert the cables though the cable glands.
4.
Crimp the RJ45 cable.
POWER OVER MODBUS
DISTRIBUTION BOX
MDB-M-6
