
Instruction Manual FireGuard 2
Electrical installation
36
13542E/4
The terminals of the RTU module are configured as follows:
TERMINALS
MODBUS
POTENTIAL FUNCTIONAL DESCRIPTION
1
GND – to ground potential Ground po-
tential
Connection of the GND line
2 A
RS485-A IN
Data connection
3 B
RS485-B IN
Data connection
4 Sh
Shield
Connection for cable shielding
5 GND
GND
Galvanically
isolated
Connection of the GND line
6 A
RS485-A OUT
Data connection
7 B
RS485-B OUT
Data connection
8 Sh
Shield
Shielding via capacitor to
ground potential
Additional information on the Modbus RTU with repeater
This module has a connection related to ground potential and a galvanically isolated connec-
tion. The signals are amplified so that several modules can be connected in series. To do this,
a connection related to ground potential must always be connected to a galvanically isolated
connection. The ground line must be used.
Pos : 77 /---Sei tenumbruch--- @ 0\ mod_1341482862121_0. doc x @ 4073 @ @ 1
Содержание FireGuard 2 Integral
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