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V-RTU2000 Series
Veesta - Remote Terminal Unit
Technical Specification Manual
3.2.6
Reset Control Signal
3.2.7
DC 5V Power Signal
3.2.8
DC 24V Power Signal
3.2.9
Relationship between DIN Connector & Terminals
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In the CPU Card of RTU, the "DC 5V monitoring circuit" is provided.
When the DC 5V power is lower than 4.75V, it will produce system
reset signal (/RST). To reset it's own card, it can also to reset other
cards by under through the Backplane. The /RST signal is designed
to connect to all slots.
The DIN-Connector-Pin of /RST is a5.
The DC 5V output of RTU PS Card is supplying power to other slots
under through the backplane, the +5V & DGND power signals are
connected to all slots.
The DIN-Connector-Pin of +5V is a1, b1 and c1.
The DIN-Connector-Pin of DGND is a2, b2 and c2.
The DC 24V output of RTU PS Card is supplying power to other slots
under through the backplane, the I24VP & I24VG power signals are
connected to all slots.
The DIN-Connector-Pin of I24VP is a7.
The DIN-Connector-Pin of I24VG is a7.
In RTU, each slot on the backplane is equipped with two external
connections. First one is the front-face 48/96-Pin DIN Connector, the
other one is the backside 6/10-Pin pluggable type terminal block.
The DIN Connector and Terminal Block at the same slot are installed
in one-to-one type.
Chapter 3 - Main Unit
Page 32 of 90
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