UP-67ETH, UP-127ETH,
UP-247ETH, UP-367ETH
Digital power unit
UP-x7ETH version 1.1
17
4.19. RS-485 ADDRESS DIP
switch
This is used to assign a communication address
to the unit, within an RS485 bus. Each unit
connected to an RS-485 bus must have a
different address.
The type of protocol used is CSMA (Carrier Sense
Multiple Access).
For configuration, refer to Table I on the next
page.
4.20.
RX and TX indicators
Reception (Rx) and transmission (Tx) indicators
of the RS485 bus.
4.21. RS485 IN connector
RJ45 type connector. This is used to connect the
amplifier to an RS485 communication bus.
For its connection, refer to Figure 12.
4.22. RS485 OUT connector
RJ45 type connector. Its purpose is to give
continuity to the RS485 bus and connect other
elements.
If this output is used, the RS-485 ON/OFF switch
must be moved to the ON position.
For its connection, refer to Figure 12.
4.23. RS485 ON/OFF
In the ON position, it enables the RS-485 OUT
connector, and in the OFF position, it loads the
bus with the end of line impedance.
If the amplifier is the first or last element of the
RS-485 bus, the switch must be moved to the
OFF position. If the amplifier is an intermediate
element of the RS-485 bus, the switch must be
moved to the ON position.
Figure 13 shows an example on an RS485 bus
formed by three amplifiers and several NS-485
noise sensors.
Figure 12
Figure 13
