Quick Start Guide REX 200/250 3G | LTE
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2.3 Terminals and interfaces
Rigid copper wires with a max. diameter of 1.5 mm² can be clamped onto the
provided connector plug. Network cables corresponding to at least category 5/5e
(CAT-5) should be connected to the RJ-45 sockets. The connection with the higher
level network/router to the Internet is created via the P1 WAN interface. The LAN
ports P2 to P5 are available for connection to the machinery network and for com-
missioning via PC.
The internal switch functionality is also active when the REX 200/250 has no
connection with the Internet.
The PWR LED lights up when the 24 V supply voltage is switched on. The boot
process starts following the internal system check (duration of approx. 25 sec.),
which is indicated by the blinking RDY LED (for approx. 90 sec.). The REX 200/250
is ready for operation as soon as the RDY LED lights solid.
The terminal (FE) is for the functional earth. Connect this correctly with the
reference potential.
2.3.1 2x digital inputs/outputs IO1 + IO2,
as well as 2x inputs IN3 + IN4
Due to the electrical isolation of these activation options, an additional 24 volt DC
power supply must be applied. The alarm inputs can be activated with potential-free
switches, buttons or relay contacts. Depending upon the confi guration in the my-
REX24-V2 portal, 1 - 4 (up to 99 for multiplex wiring) different e-mail/SMS recipients
can be notifi ed with individual notifi cation texts. For each input, confi guration can
also take place for the establishing of a connection with the myREX24-V2 portal or
for a system restart of the REX.
The confi gurable output wiring provides signals for the status of an active Internet,
VPN, user connection of device malfunction of the REX 200/250.
Note:
When using the outputs O1 or O2, the corresponding input signals I1 or I2 adopt
the respective output status and can themselves then no longer be used for other external
alarm input signals.
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2
see
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galvanically isolated
+
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application example
