ELPRO 450U-E Installation Manual

450U-E WIRELESS ETHERNET MODEM AND DEVICE SERVER INSTALLATION GUIDE
USB Ports for Configuration
and Firmware Upgrades
Factory
Default Switch
RJ-45 Ethernet
Connection
NOTES This equipment is suitable for use in Class I Division 2 groups A, B, C and D hazardous
locations, or nonhazardous locations only.
• ALL connections must be SELV (Safety Extra Low Voltage <50 Vac and <120 Vdc).
• M4 GND screw on rear of module must be connected to the main earth/GND as close as
practicable to the unit.
• Module power supply -Ve terminal is not isolated from earth/GND.
• The Modem enclosure contains aluminum and is considered to constitute a potential risk
of ignition by impact or friction, and this must be taken into account during installation.
• If the Modem is installed in a hazardous environment, it must be installed in an enclosure
that maintains an ingress protection rating of IP54 and meets the enclosure requirements
of EN 50014 or EN60079-0.
• If the Modem is installed in a hazardous environment, coaxial cable shall be installed in a
metallic conduit, per the US National Electrical Code (NEC) or NFPA.
• Consult the User Manual for details on connecting to the USB Ethernet port located under
the cover on the front panel.
WARNING Explosion hazard! Do not disconnect equipment while the circuit is live or unless
the area is known to be free of ignitable concentrations.
Substitution of any component may impair suitability for Class 1 Division 2.
©2013 Cooper Bussmann
www.cooperbussmann.com/wirelessresources
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RS-485 Resistor
Termination Switch
Power Supply
RS-485 Connection
RS-232
Analog Input
Connection
Digital Input/Outputs
• Connect M4 screw terminal on rear of
module to ground as close as possible
to the module.
• Beware of ground loops.

ANALOG/DIGITAL INPUT-OUTPUT WIRING

Voltage Free
Contact
Digital Input (Switch)
NPN Transistor
Output (PLC)
Digital Input (Transistor)
Page 1 of 2

POWER SUPPLY WIRING

9–30 Vdc
Supply
2A Fuse or
Circuit Breaker
Max 30 Vdc
0.5A
Externally Powered
4–20 mA Sensor
Version 1.0
Digital Output
Analog Input