INSTALLATION
82
NV10B - Manual - 04 - 2022
an hw reset.
RS485 port
RS485 communication circuit connections must be made using screened twisted pair cable observ-
ing the polarities; screening must only be connected to the end terminating at the RS485 interface
circuit pertaining to the monitoring unit.
It is recommended to terminate the line at the extremities of the same; this must be performed on the
RS485 line control unit and on the NV10 device placed at the furthest point connecting the specially
provided resistor; termination can be made by means a jumper between the F2-F3 terminals.
Termination resistors allow adjusting the impedance of the line, reducing the influence of the induc-
RS485
120 Ω
SUPERVISION UNIT
U
AUX
A1
≅
A2
E1
THYBUS
D1
ETHERNET
RS485
F1
F2
F3
F4
F5
A+
A+
B-
B-
BLOCK OUT
BLOCK IN
A15
BLOUT-
BLOUT+
A16
BINARY INPUTS
A19
A18
A17
IN1
IN2
A20
A21
A22
RS485
F1
F2
F3
F4
F5
A+
B-
PRO-N
PRO-N
USB
FRONT PANEL
RS485-wiring.ai
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