INSTALLATION
101
NA10 - Manual - 04 - 2022
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 NA10 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-
tive components of the same, which might compromise good communication.
Thybus port
RS485
120 Ω
SUPERVISION UNIT
OUTPUT RELAYS
U
AUX
A1
≅
A2
A9
A10
A11
A12
A13
A14
E1
THYBUS
D1
ETHERNET
A3
A4
A5
A6
A7
A8
K2
K3
K4
K5
K6
K1
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
C1
I
L1
I
L2
I
L3
I
E
CURRENT INPUTS
C2
C3
C4
C5
C6
C7
C8
RS485
F1
F2
F3
F4
F5
A+
B-
PRO-NPRO-N
USB
FRONT PANEL
RS485-wiring.ai
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