ELPRO 945U-E Installation Manual

THIS EQUIPMENT IS SUITABLE FOR USE IN CLASS I DIVISION 2 GROUPS A,B,C AND D HAZARDOUS LOCATIONS, OR NONHAZARDOUS LOCATIONS ONLY.

FCC Statutory Requirements

Unlicensed operation limits the radio power. High gain aerials may only be
used to compensate for cable losses.

Antenna Installation

Wavelengths
900 MHz = 33 cm
WEATHERPROOF
SURGE
CONNECTORS WITH
ARRESTOR
"3M 23" TAPE
(RECOMENDED)
COAXIAL CABLE
MODULE
PROVIDE GOOD GROUND
CONNECTION TO MAST, MODULE
AND SURGE ARRESTOR
M4 x 5mm
CONNECTION ON
REAR OF MODULE
NOTES
ALL connections must be SELV (Safety Extra Low Voltage <50V AC & <120V DC)
Ethernet Port wiring is that of a hub or switch.
'-' Supply terminal and 'M4 GND screw on rear of module' must be connected to EARTH /
GROUND as close as practical to the unit.
Module Power Supply -Ve terminal is not Isolated from Earth/GND
DIO channel can be wired as either input or output.
Care must be taken with antenna selection and proximity to the radio.
For short distance paths, RX signal level should be checked and if it exceeds -40dBm a 20dB
attenuator must be fitted in line with coax cable.
Demo Antennas must not be used for final installation.
The non-metallic cover of the Wireless Ethernet Modem is considered to constitute an
electrostatic discharge hazard. Clean only with a damp cloth
The Wireless Ethernet Modem enclosure contains aluminum and is considered to constitute a
potential risk of ignition by impact or friction and must be taken into account during installation.
If the Wireless Ethernet Modem is installed as Category 3 equipment, then it shall be installed
in an Enclosure which maintains an ingress protection rating of IP54 and meets the enclosure
requirements of EN 50014 or EN60079-0.
If installed in a hazardous environment coaxial cable shall be installed in a metallic conduit as
per NEC requirements
WARNING - EXPLOSION HAZARD - DO NOT DISCONNECT EQUIPMENT WHILE THE CIRCUIT IS LIVE OR UNLESS THE AREA IS KNOWN TO BE FREE OF IGNITABLE CONCENTRATIONS.
WARNING - EXPLOSION HAZARD - SUBSTITUTION OF ANY COMPONENT MAY IMPAIR SUITABILITY FOR CLASS I, DIVISION 2.
REV 1.10
1 Wavelength
minimum
COLINEAR
ANTENNA
STRESS RELIEF
Factory
LOOP
Default Switch
MAST
INSTALL ANTENNA ABOVE
LOCAL OBSTRUCTIONS FOR
Connect M4 screw terminal on
MAXIMUM RADIO DISTANCE
rear of module to GROUND for
IF GROUND CONDITIONS ARE
POOR, INSTALL MORE THAN
ONE STAKE

RS232 Connections

RTS
CTS
DSR
DTR
DCD
MODEM
PC's, Dataloggers
RTS
CTS
DSR
DTR
DCD
MODEM
MALE
100M LINK
5
RUN
9
SETUP
ETHERNET RS232
(HUB)
RJ-45 Ethernet
Connection
surge protection
PC's
2 2
RD RD
3 3
TD TD
5 5
SG SG
7 7
RTS
8 8
CTS
6 6
DSR
4 4
DTR
1 1
DCD
DTE HOST
DB9
DB9
MALE FEMALE
2 2
RD RD
3
3
TD TD
5
5
SG SG
7
7
RTS
8 8
CTS
6
6
DSR
4
4
DTR
1
1
DCD
DCE HOST
DB9 DB9
MALE
4 3 2 1
8 7 6
B A - + COM DIO
(DCE)
RS-485 SUPPLY
9-30V
DC Supply
BEWARE OF
GROUND LOOPS
*
Connect to Ground as
close as possible to the
module.

RS485 Connections

HOST HOST
+
-
ELPRO Technologies Pty. Ltd. 2012
B A
B A
RS485 Resistor
Termination
Switch
2A Fuse or
Circuit Breaker

Digital Output Wiring

MODULE
COM
DIO
DC Load,
eg Relay
Max
30VDC
0.5A
-