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2. Power and control module
Power supply
1
Fuse
2
RS-485 bus output
3
RS-485 bus input
4
RS-485 OUT ON/OFF switch
5
RS-485 bus reception indicator
6
RS-485 bus transmission indicator
7
Eng
2.1. Power supply
To power the UMX-02/0 a power supply of 24 Vdc is required.
The consumption, without cards, is 285 mA. When the various cards are inserted, the consumption will
increase depending on the model and the number of cards inserted.
2.2. Connection of the RS-485 input and output
The UMX-02/0 communicates with the control PC and the various elements of the SMP-250 system (ECM-
01, UDCE-01, COU-01, UMX-02/0) through an RS485 bus. For this purpose, it uses the CSMA (Carrier
Sense Multiple Access) protocol.
2.2.1. Interconnection of various equipment units (UMX-02/0, DALA01/
0B, MD-500EM...)
8 pin RJ45 connectors with a metal housing must be used.
OFF
RX
TX
ON
RS-485
OUT
RS485 OUT : ON
48
UMX-02/0
RJ-45
1
FROM
4
UMX-02/0
5
RS-485 OUT
8
SHIELD
RS485
RS485
IN
OUT
RS485 OUT
ON
Figure 2
5
6
7
RJ-45
1
4
DATA B ( )
DATA A ( )
5
8
SHIELD
RS485
RS485
RS485
RS485
IN
OUT
IN
OUT
RS485 OUT
RS485 OUT
ON
ON
Figure 3
24V
Fuse
3A
OFF
RX
TX
ON
RS-485
OUT
RS-485
IN
UMX-02/0
TO
UMX-02/0
RS-485 IN
RS485
IN
RS485 OUT
OFF
UMX-02/0 v1.0
1
2
3
4
Capítulos
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