RFI Multimax+, User Manual

Page: 111 / 139

Multimax_user manual_v.4.0.4 July. 11, 2018 111/139
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4.1.2 Digital Input
MULTIMAX supports digital input with dry
contact. Please check the connector interface
of the router, you can easily find a mark “V - ” at
one pin of the power connector.
Note: Do not connect In1/In2 directly and do
not slide the switch to the port marked “GND”
on the terminal block. Otherwise, the DI cannot
work properly.
4.1.3 Digital Output
MULTIMAX supports digital output with wet contact. Please refer to the right side figure to connect
the negative pole of the power to the port
marked “GND”.
The maximum output voltage, output current
and output power of DO is 30V DC, 0.3 A and
0.3 W respectively. It means that the voltage
difference between Out1, Out2 and GND
cannot exceed to 30V DC; and the current value
through Out1 and Out2 cannot exceed to 300
mA; while the output power dissipated by Out1
and Out2 cannot exceed to 0.3W. Otherwise,
the DO will be damaged.
4.1.4 RS-232
Power Negative
External Load
External
Power Supply