Switches and LED Indication
In practice the line is terminated at the last meter in the RS485 multidrop
network with a resistor. The ‘SW1’ switch has two separate line terminations,
one for each RS 485 port.
‘SW1-1’: is the line termination of port 1: (pin number 1-3 of TB3,
see Table 6).
‘SW1-2’: is the line termination of port 2: (pin number 4-6 of TB3,
see Table 6).
The line termination is enabled when the switch is placed to the ‘ON’
position.
6.1.2 SW2 and SW3
‘SW2’ and ‘SW3’ are both used to switch the communication of the meter
from Ethernet to DSL. ‘SW2’ consists of two separate switches; together with
‘SW3’ they all should be aligned in the same direction (either up or down).
For communication through DSL: ‘SW2’ and ‘SW3’ should be up.
Communication should now be taken at pin number 9 -10 of TB2,
see Table 4.
For communication through Ethernet: ‘SW2’ and ‘SW3’ should be
down. Communication should now be taken at TB2 or J4. Please
see Table 4 and Table 5.
Please keep in mind, that it is not possible to have communication with the
Ultrasonic Flow Meter Series 6 through Ethernet and DSL at the same time.
6.1.3 SW4
This switch controls if the meter needs to be powered through TB1 or
through the Ethernet connection.
If the switch is up: the power should be foreseen through TB1
connector (see Table 2).
If the switch is down: the power should be foreseen through the
Ethernet connection (see Table 4 and Table 5).
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